Hi everyone. I've decided to start a little running thread of the progress of my DIY speakers. Let me first say that this is my first attempt at a DIY speaker project. There are several people who have helped out quite a bit...lending much of their knowledge and experience...thank you!

I'm also building these speakers with another individual. So far...My brother and I have done the cabinet work and the other individual is doing various testing and putting together the cross-overs. Both our speakers are going to be very similar...but there will be some differences...such as some differences in drivers.

So...what am I building? It's going to be a three way system (well...maybe two...but don't know yet) The bass cabinet is a sealed cabinet which will house a Pioneer Tad 1601a woofer (http://www.pioneerelectronics.com/Pioneer/CDA/Industrial/SpecificationDetails/0,1448,1540,00.html) . The midrange will be a 500Hz EdgarHorn "SaladBowl". This is a round wooden tractrix horn. I will be using a Jbl 2441 (http://www.jblpro.com/pub/obsolete/2441.pdf) on the mid horn. I bought this driver used (obviously) from Jammin' Jersey (http://www.jamminjersey.com/speaker2.htm) . It has the alinco magnet and also the aluminum "Diamond Edge" diaphragm. For a tweeter I will be using a Fane ST-5022 (http://www.fane-acoustics.com/public_html/pages/products/hfunits1.htm) .

So...what have we gotten done so far? The bass cabinets are made (tho not finished). They are made out of 3/4" 70lb mdf. There is quite a difference in the look of this compared to regular mdf...and also a difference in weight and strength. The cabinet will be completely glued and screwed...bracing and all. All this is done right now...with exception of glueing the front and back panels...as we wanted to leave access till we were happy with the cabinet...making sure it didn't need any other bracing.

Right now...all the stuff is over the other guys house...As he's playin' with the cross-over design and amplification. I'll be going over there to take a listen this Wednesday...he's says they're soundin' pretty good! I'll let ya's know ;)

What else do we plan to do? Well...once the cross-overs are done...and we're happy with the performance of the speakers...it'll be time to disassemble them and bring'em back to my house. Then we'll use a dampening spray (http://www.partsexpress.com/pe/showdetl.cfm?&User_ID=8449699&St=2686&St2=55673019&St3=60528573&DS_ID=3&Product_ID=7107&DID=7) on the inside, bracing and all) ...glue the remaining, front and back, panels on...and secure the last of the screws. After this...we've got some sanding to do before putting on the 1/4" plywood veneer...then (you guessed it) more sanding. The top "cabinet also has to be designed/made/sanded. After this is done...time to make the grill...while we're finishing the cabinet in the stain of my wifes choice.

well...I think that about covers it.

here's a couple of pics...

and...

Very nice glad you started the thread! So how big are the boxes 5cuft?? Why are you going with sealed instead of a reflex design?? Are you planning on using a subwoofer with them?? How about some salad bowl pictures. What type of wood are they made of??

I know to many friggin questions!!

Regards Rob:)

Originally posted by Robh3606
Very nice glad you started the thread! So how big are the boxes 5cuft?? Why are you going with sealed instead of a reflex design?? Are you planning on using a subwoofer with them?? How about some salad bowl pictures. What type of wood are they made of??

I know to many friggin questions!!

Regards Rob:)

The boxes are 6cuft...not sure if I'm going to go with a sub or not. (let me try that again;) ) I'm not sure if I'll go with a sub right away or not. I will probably end up with one, of some sort)...but certainly not for a while.

I'll get some pics of the saladbowls up in a couple days. If you take a look at my system pic...you can see them on top of the Tv...I was tryin' them out that day :P They're made of Poplar wood...Bruce should be getting his website up soon. I'll let you guys/gals know when it's up.

Well...Wednesday I go and take a listen to them...hope they sound good!

Are these the same drivers/horns (asside from the woofs) that Edgar uses in the Titans? I heard these a while back and they where fantastic! You should end up with something special here.

Billf

Billfort...were you at Lima?

These are the same drivers that were in the TiTans at Lima. Tho the TiTans use the 350Hz horn (with 2441's) I'm using the 500Hz horns...which actually gives me more top end from the 2441's. I haven't heard them yet...but the other guy said there is response up to 18kHz...so I'll have to wait till tomorrow to see how they sound..and if I'll go with the tweeters or not.

The speakers wil also be bi-amped...one for the woofer...and one for the mid(tweet)...so I won't have to pad the midrange much if at all...which I am really happy about. As for what amps I'll end up with...I'm not sure yet.

we'll see>>>>>>>

Gone,

Thanx for sharing your speaker building project with us! It looks very worthwhile and you certainly aren't skimping on the quality of the drivers. Please keep us appraised of your progress and results. Have fun!

Rob

Yes, heard the Titans at Lima - highlight of the show - I spent a lot of time in that room. I was kind of expecting the 2441s to sound a little harsh but with the Edgar horns they where incredible - smooth, sweet - sooo nice. I was wondering how you where going to level match, bi-amping seems to be a nice way to approach it. Been thinking of doing that with my Altec 604s (horns about 6db louder than woofs), will be interested to hear how this turns out for you.

Billf

Hi Rob. Probably best if we start a new thread on the 604's.

Billf

well...I listened to the speakers today...so far...they really sound good! These should end up bein' a nice set of speakers! :D


What I heard...the mids (2441's and 500Hz EdgarHorns) are just glorious...this is the sound I like so much with the Titans (no...there not exactly like the titans...but are very good) Dynamic...distortion-free...good imaging...just great mids.

Do the mids go high enough?...no...not really. If I had to...I could live without a tweeter on these...but the tweeters really do add just that added something that is needed on top...where the mid horns fall just a bit short. However...we did hook the Fane tweeters up...and the combo of the 2441 Horns and the Fane tweeters sounded great! (although remember...we still have playin' to do with the cross-overs...or at least measuring...to see where we are at. But it does sound good)

The Tad's actually sounded pretty good too...they do the midbass pretty well...to match up with the horn. Now...don't get me wrong...you can do much better in the bass section by going with a bass horn...and matching that up with the mids...but this was not an option for me. The set-up I'm working on seems to be a nice compromise...tho it doesn't have BIG punch...or go real low...they do well...a sub shouldn't be needed for the listening I'll be doing.

We still have some work to do on the cabinets...but I really think this should be rather simple.

oh...the mids...they seem to do so well...we may actually try crossing them at 500Hz instead of 800Hz...to see how they'll do...If 500Hz doesn't work...probably try 600Hz.

All in all...these should end up to be some nice speakers.

Billfort...If you were in the Edgar room alot at Lima...you must have been in there with me ;) I actually tried to "just" walk by the Edgar room several times...but something just kept pulling me in the room.

How will I level match the amps?...or (sub)speaker systems? the way it's looking is that I'll use two amps...with volume control. What I'm thinking so far...is that one may be an int. amp with an additional pre-out...then take this pre-out to a passive volume control then into the other amp. That way I will "set" the volume on the one amp to match the other...and the int. amp will control the volume on both.

take care>>>>>>

Yes fishin, we must have crossed paths there a few times. I know what you mean - I was there for the weekend and tried to spend lots of time listening to everything but every trip past Edgar's room I'd say - cool, listen to what he's playing now in there - lets sit for a while.

I actually became quite a proponent of "less is more" in audio and really came close to jumping into Lowthers (no crossover - yeah!) until a good deal on Altecs came along. As much as I liked horns, I really had reservations about Edgar's approach - 4 horns and all those crossovers. Boy, was I wrong. That system was amazing. I guess I shouldn't be too surprised as the heart of the music - 500hz to maybe 12k - was covered by only one absolutely incredible driver/horn. The top horn seemed to "hide away" nicely, never drawing attention to itself and the bass horn made a seamless match with the mid - tonally cut from the same cloth I guess, with matching dynamics and speed. And that horn sub - man! I didn't think reproduced bass could sound so real. I saw it was using a solid state plate amp and EQ and right away thought - this is going to suck - but again, I was SO wrong. The only downside I found with this system was that it needed a huge room and sounded best in a narrow sweet spot and from a distance.

I left the show thinking the Edgar approach is the attainment of audio Nirvana. I figured if I had a huge room and a spare 12K to spend, I'd buy tomorrow. If I had a huge room and not so much money, I'd start to gradually work up to what I heard - like the path you are on. Unfortunately, I currently am stuck with a small room and the Altec 604s work in there. I'm going to build some new corner cabinets for them, and play around with crossovers and maybe bi-amping. I'm happy. If I ever get to the point where I have the room - I'm doing exactly what you are doing - working towards my own Titan system - with sub of coarse.

Billf

actually...for a small room...the 500Hz horns do do well in the nearfield. Two of the reasons I went with the 500Hz horns instead of the 350Hz horns (which the TiTans use) are...the cost of the horn...and the size of my room.

hopefully I'll have the speakers done by the next Lima...are you going again?

So the Titans at Lima had a mid horn that went even lower than I thought - again, even more coverage with 1 driver/horn - not surprised I liked them so much. Don't know what it was with the Titans there but when sitting in the front row of chairs, things could sound a little disjointed - you could sometimes hear the distinct origin of certain notes as coming from different drivers. move to the back row or even better, the back of the room, and everything just clicked - beautiful music. From what I can remember, the room was about 25' x 35' - a hell of a lot bigger than my room.

I liked the Titans so much I didn't spend too much time listening to Edgar's Slimlines in the next room. They sounded extremely nice as well with a killer midrange. The small, sealed sub didn't do it for me though but it was NOT fair going into this room after just listening in the Titan room. The Slimlines with an appropriate sub might be a great system for a smaller room. If I didn't have the Altecs, and didn't want to dabble more with DIY, I would seriously consider these.

I think the Midwest Audiofest in Lima is moving to the fall next year and I will definitely be going. It's a long haul from Toronto but definitely worth it. We'll have to hook up next year and shoot the S, maybe tip a few beers. I think we found most of the bars within a walk of the convention - even one with a decent blues band.

Billf

time fer a few pics.

here is one of my speakers (still being worked on). Right now they're still at the other guys house as he's working on the cross-overs. They're crossed at 800Hz now...we may try 600Hz and see how it does.

The top cabinet you see is actually from a different speaker...used to hold the 500Hz round horn and the tweeter(as it uses the same).

another pic

close up of the 500Hz horn

pic of the other guys tad1601C's and Tad 2001 compression driver on a 650Hz EdgarHorn.

You guys sure use puny caps. Need me to send you something a bit larger? No PCBs!

Oh, and they are looking great!
That an Edgar sub there?

thatchie...yep...that's a TiTan Sub there on the right of the pic...tho it's not mine :(

Hi guys- I'm the other guy-Ray working with Dan. The project is going very well. I'm really suprized how good the system is sounding. Killer midrange like the Titans. Since Lima Bruce is now using the JBL 2441 driver instead on the 2440. For those of you who heard the Titans is Lima the Midrange of our system sound just like them. My next goal is to cross @ 600hz. The crossover suggested by Dr. Bruce Edgar is 2nd order on the woofer and 1st order on the compression driver. The tweeter will also be 1st order. Most likely crossed at 10Khz.

Feel free to ask any questions.



Ray

Hey Ray...glad ta see you made it ;) and thanks for the pics you took with yer tubed camera...Hmmm....I mean digital camera.

What caps do you need to try and cross the woof/midHorn at 600Hz? I'll try and keep my eyes open for some.

talk to ya later>>>>>

I have a fair stock of low uF large oils if you need anything.

Thatch,

Please contact me by e-mail regarding the Caps. mrrjm@attbi.com

Thanks


Ray

Ok...there's a little wrinkle in the the plans here. We have some vibration on the rear panel. The entire rear panel vibrates..but is worse near the braces. Check this (http://www.audioasylum.com/forums/HUG/messages/35606.html) post out...we got some good suggestion from a variety of people...thanks to all that responded in the thread or thru e-mail.

I really think everything will end up being fine (they already sound damn good) in the end...but we would like to take care of this vibration before going further.

Now I need some time...hey, anyone got some time I can have? (no thatch...not thyme) ;)


that's the update fer now...

Its a little late for my favorite brace which I do with a hole saw while the sides, and if wanted the top and bottom are clamped. I cut a circular hole that will take an ash closet dowel.
As far as adding thickness or bracing to the back pannel possibly the largest size of half rounds tacked and glued to the outside. Wood grain is hard to bend. Also I found some pretty amazing stuff for soundproofing. I first saw it at an avation supply store for insulating the insides of airplane cabins. Now it is being sold at Home Depot in a 4'X6' sheet as a hot water blanket for $20.
Spray adhevesive with the quilted foil side out will trap many sound waves as they bounce between the aluminum cover and the HDF. Over that I would with spray adhesive glue on the small bubble, bubble wrap with the flat side to the cabinet. This will disperce standing waves and the combination of the materials ought to work better than Black Hole. Cheap too. Do be sure and buy the better spray adhesive, dark can and around $9. Internal deadoning could work as well as extra bracing, be easier and you got to stop the standing waves anyway. I would try this before heroic methods.:D

Thatch,

You made my day today. I'm finishing my basement and I was trying to figure out how to soundproof the duct work. I'll be at home Depot toight checking this stuff out.


Ray

Quality Heat Shield Sound Deadener
Riverside, Ca 1(800) 252-7901

In case you have a hard time finding it.

Well...I've been really busy lately...but that's a good thing...dan little kid has all our time (as she should :) )

This is what we have so far...I got two more rear panels of veneered mdf..this will serve two purposes. One will be to strenghten (by adding mass) the rear of the cabinet by adding another 3/4" piece of mdf. It will also serve as the finish veneer...the panel will be attached to the other rear HDF piece from the inside...so there will be no screws visable from the outside...this piece wil also be glued...with only a few screws holding it together until the glue dries. We have also got some bracing cut to add to the rear panel...these braces will be run vertical on the rear panel. So far...after putting these two pieces together on on of the speakers...I think this will take care of the problems we were having.

After this is done on both speakers we are going to add the bracing to the front panel as well...then add the additional 3/4" veneered mdf to the rest of the panels...so the entire cabinet will be 1 1/2" thick...with 3/4" being HDF and 3/4" being veneered mdf.

The actual woodwork will take less than an hour...I've got to get going!

well...that's it for now....take care all>>>>>>>>>>>>>

gonefishin,

Might I suggest doubling the baffle board. Since your using a
large driver, a double baffle board will handle a better abuse
than a single board. Not to mention since its MDF, it can't take
the constant pounding of the driver as a hardwood.

I know you chosed MDF for sound quality, double the Baffle board for durability.

Especially, if your planning to drive it with sub frequencies. That
driver will shake that box apart. The extra baffle board will reduce
the baffles resonance, and, add more weight to the box.


Best Regrds,

Elliot...thanks for the suggestion...your right...and I do plan to double up all the panels...including the baffle board. This way everything will be at least 1 1/2" thick. 3/4" of hdf and 3/4" of mdf.




:guitar:

Here Are Some Ideas On Cross Bracing

The Braces Are 2 By 4's But, You Can Use 2 by 2's

When attaching the braces front to back, you can also use
MDF srtips. However, one 2 by 2 will do the same job, and, take less internal volume compared to strips.

Screw the braces in the box, in addition to glue.


Remember, too much braces will kill the box volume.

The Back Brace Is A 4 By 4, Again, You Can Use 2 By 2

~

Well...I got a couple pieces of 3/4" veneered mdf and tried it out...to see if it would help stiffen the cabinet up.

well...we already had 3/4" HDF with internal tension bracing...after trying out the additional mdf...This really ought to work...what a difference.

so...we're getting all the tops, bottoms,sides, fronts, backs...everything cut for both pairs of speakers. It'll be the additional 3/4" mdf...for a total of an 1 1/2" of hdf/mdf combo. We're also going to add two stiffeners to the rear panel and one to the front...these will be running horizontal.

Along with the veneered msf we will also be getting some 3/4" square stock solid birch...this will be used on all end pieces...where the MDF is at a corner. That way you will have a real wood corner instead of mdf. I'll try and get some pictures up soon.

well...that's the update fer now>>>>>

Gone,

Those cabinets are gonna be really heavy, and solid! Great idea about placing the 1x1 birch longwise in the corners while adding the new veneered MDF!

Rob

For those of you that are following this another good option for cross bracing is the large ash dowel used for hanging clothes in your closet. It is best to clamp your opposite sides together and drill out with a hole saw at the same time. After constructing the box you use a mallet and tap the dowel through applying your glue just before it goes completely into place. There are good Japanese hand saws to use to cut the dowel flush with the outer surface.
The dowel will prevent the box from flexing but avoids the flat surfaces that can cause interior reflections. GF, sorry I didn't think of telling you earlier but didn't know that you were planning as much intererior bracing as you used. This technique is possibly even more affective when you are doing double walls as you would only drill/cut the intererior pannels.
It is a bit more time consuming but the non reflective nature of the round dowel could make it worth while.
I have in the past built towers with 12 4" drivers per cabinet and used 2 lengths of 3/8" dowel between drivers front to back and 1 cross ways. The ply still had some vibration but there was no flex at all.

Thatch,

That dowel idea is a good one!

BTW, how did the 12 x 4" towers sound? Did you get sufficient bass?

Rob

Great idea thatch...thanks fer sharing it. I will definatly keep this mind for the future!

As for the speakers...Things are startin' to come together...I've ben REAL busy lately...but I'm startin' to get going again...and I think the cabinets are going to turn out real good...sound wise and visually. But, I do think I would do things a little different if I was to make the same cabinet again. No real major changes...just perhaps slightly better ways to do things.

live and learn...and learn...and learn...and learn...etc.

thanks again! :D

I have some acoustic foams leftover years back from a mainframe project that did not fly and don't know what to do with them now. I understand you are too far away where I live but I think these may be excellent in killing standing wave and unwanted noise inside your speakers. They have self-adhesive and very easy to apply. Anyone live close by my area (Santa Clara, CA) want to have some for their DYI project can contact me. They are free and only enough for a pair of speakers.

Your speakers look pretty cool. I wish I could learn how to do that.

Actually the 12 driver towers were dipoles and I doubt that I needed the extra bracing. They were an exersize in voicing and were made with little 2 watt alnico 8 ohm Calrad drivers that came from a pair of Sweet 16s. Can't remember just how I did it but they ended up 8 ohms with 12 8 ohm drivers. The math is easy, the mapping it out is not.
Johan, "Hornphile" was very taken with the dipoles and I gave him all the drivers to use in mid range horn experimentation.
I am at the moment trying to make my own dissapearing act in insulation. What used to be used in aviation as an insulation to line cabins against noise and temp is now available at Home Depot as hot water heater blankets. On top of this I am gluing the tiny bubble, bubble wrap. Sound dispertion and absorbtion for around $20 to $30 per large cabinet.
Photos soon guys.

Thatch...is that insulation the same stuff that is used to line the engine compartments in boats? I think it may be a similar material. I was thinking of spraying the inside of the cabinet with quiet-kote...in therory...it should work pretyy good...but I'm not sure...have you ever tried anything like this? I got the queit-kote from partsexpress.


thanks fer the tips!

hotgas...you wouldn't believe how long this project is taking me....ugh!

I know...I know...this is sure going slow! But I figured I would post my latest progress.

I have added the outer layer of 3/4" veneered mdf to the inner layer of 3/4" hdf. I used screws and glue. The piece of 3/4" square wood stock was also added on the corners. The entire cabinet was both sanded flat and smooth before adding the mdf and after the veneered mdf and square stock was put on. Some additional bracing was added inside the cabinet too.

Next I have to route the corner stock...just basically so it takes the corner off. Then The top and bottom plate will be worked on.


one of these days...one of these days!


oh, forgot to add...by adding the additional mdf it really stiffened these things up (for a total of 1 1/2" of mdf/hdf combo) ...these things are solid! But...they are heavy too. Just the bottom enclosure without the top and bottom pieces on...weigh 110lbs. The finished product will also have the mid/tweeter box...plus all drivers. The drivers weigh around 55-60lbs for the three. I'm guessing each speaker may come in around 180lb or so...which has made my mind up about moving these things around!

Gone,

It makes my back twinge just to look at those when I notice the double wall thickness. They are gonna be heavy! In speaker cabinets, heavy is good. Nice job.

Rob

Have you done anymore listening to them during the build process? I'm just curious on what you think. Also looking forward to hearing the Edgarhorns at Lima, as well as the Cain & Cain speakers. Did you know that both Terry and Brian will have rooms? One of the possibilities I'm considering is a DIY project with the PHY KM30 drivers. They've been getting alot of great reviews and there was a recent price reduction through the U.S. distributor. I'm not even sure what type of cabinet I'd put them in, I'm reseaching the alternatives now. I don't think I'll be getting into anything as complex as your project.

MikE

Lima should be pretty good this year...sounds like lots of great stuff will be there!



It would be interesting to listen to them again...but, at this point...I just want this darn project to be done already...and hooking them up,again, would only put me on a slower pace. The additional mdf and bracing has really made these things solid. At this point...the boxes are totally sealed up...and I couldn't get into them if I wanted to.

This box project really isn't all that complex...I think I'm just slow :dunno:

not much of an update...just posting another pic (guess I'm kinda bored right now :dunno: )

As you can see...the top box isn't made yet...so the mid horn and tweet are just balancing there.

GF,
The insulation could well be the same as used for boats. I called the people that make it and was told that a lot of car audio guys are using it because of its great properties and light weight.

ok...tops and bottoms are done...the grill frame is done too (the cloth in the picture is not fastened to the grill frame yet...it's just a loose wrap...to see how it would look). We still have to make the top cabinet...that'll hold the nidHorn and tweet...but we're getting closer :)

here's another pic

Here's a pic of the grill frame.


Here's my question...Does anyone know of any method for attaching the grill cloth to the frame? I am certain that I can get this done...but I have found that people who have already done this may know of little tricks that can make things easier or better...and they can also tell you what not to do...or what to watch for.


any tips, tricks or things not to do?


thanks!!!!!!

Originally posted by gonefishin
Here's a pic of the grill frame.


Here's my question...Does anyone know of any method for attaching the grill cloth to the frame

any tips, tricks or things not to do?


thanks!!!!!!

Gone,

Those are looking great!

To attach the grille cloth use Hot Glue! Don't press the grille cloth into the back side of the frame after applying a couple of sparinlg inches of hot glue bead at a time with bare fingers. You will burn yourself badly. Use a wooden throat inspection tongue depressor or some other tool.

Make sure all your fasteners are in place beforehand, like nylon ball and sockets if you are using those.

Rob

Go to a Hobby store that sells painting supplies and see if they have the grips for stretching canvas. I used a strong staple gun on my canvas but hot glue might do the trick for you. Any framer could do a great job as they do linen matts etc.

Lookin good gonefishin. For mine, I attached the stretchy rat shack grill cloth with wood glue and a LOT of short staples. Since my frames where MDF, I used the shallowest staples I could find and a powered staple gun. Since mine where round, it took a lot of stretching in small increments to get it right so holt melt wouldn't of worked. For a large square grill, the fabric stretcher and hot melt idea sounds like the way to go. I heard of a technique a while back that involved cutting a groove in the back of the grill frame rails on a table saw, then using a little glue and the plastic spline and installation tool you use to install new screens in screen doors. I haven't tried this one but have replaced a bunch of screens and am always amazed how easy it is to get it right.

Billfort

For a little extra oomph, get some 3m spray adhesive. Used carefully, it works well. The folks at Snell told me to try it.
Speaks are lookin good.
Don

thx guys.


right now...we're working on the other pair of speakers...trying to get them caught up with mine...then we start on the mid/tweet cabinet...will these ever be done :dunno:


later>>>>>

Don't worry about getting them finished, worry about hearing something at Lima that changes your direction.
:D

worry about hearing something at Lima that changes your direction.
Is that what I have to look forward to? :cool: MikE

Originally posted by Thatch_Ear
Don't worry about getting them finished, worry about hearing something at Lima that changes your direction.
:D


Thatch...I heard a number of speakers I have been wanting to hear for some time now. Some of which I almost bought "on the blind", without listening to them first!


After going to this years Lima event...I'm still more than happy with the sound I'm going after...and wouldn't change a thing if I were starting over.

You know GF, after going to 2 MAF’s and hearing countless systems over the years, I got to agree, the road to audio nirvana for me goes through Edgar’s shop. I don’t have the room for Titans and a horn sub right now but someday…

It’s funny, I keep hearing little bits of things I like here and there but came away from this years event quite content – for the right room, I’ll get Edgars, for a smaller room, I LOVE the Altec 604’s and still haven’t heard anything I like better overall.

Stay the coarse young man, you are on the path to righteousness (or something like that).

Billfort

Great, it is always a good thing to be able to hear what your heading for right up against other systems and come out in the same direction.
You need some sockets for your DIY 300B your going to build now?

Thatch...I sure could use a couple. Do you have four to spare? I think the 10Y's use the same socket...Ed...Terry...do you guys know for sure?

If you have some extra sockets...just let me know via PM.

Dang it :mad: now I have another project starting within my first project...I gotta get going! ;)

:lmao:
I goosed the Fish!

Guys,

Just as a note of caution, these E.F. Johnson transmitting tube sockets are not recommended for tubes that do not have the bayonette locator pin on the side of the base which is what holds them in alignment within this type of socket, and also insures that they get seated in the right pin order. I don't think the 300B base has the bayonette pin and am quite sure the 10Y doesn't also. For 4 pin tubes without the bayonette side pin you would be better off with the flat ceramic wafer type tube socket with spring loaded friction pin receptacles.

If you wish to use 866-A mercury rectifier tubes in an 'electric chair' amp project with voltages over 1 kV and as high as ~5 kV (not for the faint of heart) these are the sockets you want!

Rob

Both pairs of my 300Bs have the pins. I sure will check out the VT-25 as I really can't remember, and yes, it would be a very bad idea to put one of the high voltage tubes in the wrong pinouts. Especially one of those mercury rectifiers. That would not be a good thing to pop in your face when you plug it in.
These are definatly industrial strength tube sockets. Anybody that needs these things let me know. I have no idea about how long my source will last.

Still goin':rolleyes:

We're goin' ta bring them to the finishin' guy in a couple days :D


it's gettin' closer:p:

Wow! I hadn't seen your thread for some reason. Really beautiful
looking design. I've heard Edgarhorns once, best horn sound I have ever heard. You going to use SET's for yours? Nice going,
Congratulations!
Carl

Your making four of them? I didn't realize that, how come?

those are going to be stunning !!! What a great job you`ve done.

BTW, My wife likes your window frames a bunch. Women :dunno:

J

Thanks for the kind words guys :)


Carl...yep, I'll be using my current 300B's to power the midhorns and tweet...then SS to power the bottom. After I get the speakers done I've got to save up some money to by the parts for a couple new 300B amps...this'll be my first attempt at a DIY amp :eek: Good thing I got you guys ta help me along ;)

Thor...yeah, we're making four of them...two for me and two for another guy...it's kind of a joint effort thing...my brother and I are doing the cabinet work...and the other guy is doing the cross-over work.

Johnny...thanks...and yes, women do seem to focus on some strange things don't they...not like us ;)

gonefishin,


I haven't been around the Karma in months. Just
wanted to let you know, you're doing an excellent
job with the cabinetry.

Take Care,

thanks elliot...good ta see ya still checking in once in a while :)

They actually look MUCH better in person than the pics show...you can see alot more grain than it appears.

oh...and the horns are obviously...just sitting there.


but...here they are :)

last one...hey, I'm a picture whore ;)

:eek:

:jawdrop:

Fishin', they are beautiful!I can't think of anything else to say

Alan

:eek:

Those are BEAUTIFUL!

Which ones are yours? The light pair or the dark pair?

Absolutely first class job there. Couldn't have come out nicer. Which color are your's Gone? I think both colors look excellent!

Rob

Thanks guys.


Ours are the darker ones. It's a Mahogany stain..the other color is a color match.

We still have a little bit of work left...but these things are almost done!!!!!:yippy:

You have more patience than me to take so long. It would have driven me nuts. Glad you have stuck with it and am sure the results will justify it.

Stunningly beautiful! And to think they will sound as good as they look too!
Carl

Dan--Where's the center channel? :)
\


Ray

Originally posted by mrrjm
Dan--Where's the center channel? :)
\


Ray


ugh :cry:




;)

They are beautiful, and having finally heard the Edgarhorns I know they sound wonderful. Great job. Like the other fellas, I'm impressed in how patient you've been through the entire process. Gives me something to consider...

MikE

Absolutely incredible.:eek: Those are something to really be proud of and something you can pass on to future generations. KUDOS :thmbsp:

some thing i didn't notice until the pics with the stain, the horns aren't the same size. Are they? It looks like the horns on the lighter pair are slightly smaller.

Originally posted by FreaK
some thing i didn't notice until the pics with the stain, the horns aren't the same size. Are they? It looks like the horns on the lighter pair are slightly smaller.


Freak...your exactly right. The lighter ones have a 650Hz horn used with 1" drivers. My, darker ones, have the 500Hz horn used with 2" drivers.

The 650 Hz horns will be used with Tad 2001's...which I have not yet heard...but I'm told you don't have a need for a tweeter. The guy who has the Tad 2001's and the 650Hz horn is also going to be getting some 500Hz horns.


Myself, I really like the sound of the JBL 2441 and 2440's...although...I've heard JBL 2420's (1") with some 650Hz saladbowls...and they sounded damn good too!

:D

mid cabs wit cross-overs

here's a pic of one of the speakers

and the system.

Hi again guys...I just wanted to say thanks to all of you.

AK is a great site...filled with great people. The encouragement and advice I have gotten from you is greatly appreciated.


Rob, thatch, and everyone else...thank you soooooo much!!!



:beerchug:

That is truely a system to be proud of. With all the sweat and love that went into the speakers, you will cherish them allways.

Kudos

Gone,

Wow, what a fine looking finished result, and the system looks great! Everything Wards just said and more.

That 2" throat JBL driver is one bad looking horn driver too!

Rob

Thanks guys...hey, I think I may have found a new hobby ;) This DIY stuff may be addictive.

Beautiful speakers Fish, love the finish and the salad bowls, bet they sound sweet. I've always loved the dynamics of horn mids.

Yeah so how they sound??

im sure they sound as good as they look, beautiful job!

You know, if you put any credence in psychoacoustics...

Gone's speakers set up with Billfort's amps would make a GREAT stereo system centerpiece, and you would KNOW they sound great just from the looks.

Besides, can you see people trying to figure out the manufacturers:p:

Kudos on a well finished, great looking project.

I must admit that I doubt anything I completed would look half as nice. I really look forward to the time you get around to building your own amps, and would hope to be able hear your system when you're done.

Again, great job.

Have to congratulate you fish, these turned out fantastic. Beautiful pieces of furniture, you should be proud. Really looking forward to hearing how they sound as I know your yardstick for the ultimate reproducer of recorded music at home is the same as mine - the Edgar Titans. I guess I always ruled the Titans out because I just don't have the room for a full range, full tilt horn system - maybe your use of the TAD's are the perfect compromise.

Hell, if they don't work out, you can always tackle a leisurely build of a pair of Edgar 80hz horns with, I don't know, EV15's?? :) .

Congrats on a super job.

Billfort

Hey man, I know you just got these assembled, after a lenghty build process, and I'm sure you're just kicking back enjoying yourself. But when you get a chance or when you feel inspired I'd be interested in your comments on how they sound compared to your old speakers and the Titans. Thanks.

MikE

Originally posted by MikE
Hey man, I know you just got these assembled, after a lenghty build process, and I'm sure you're just kicking back enjoying yourself. But when you get a chance or when you feel inspired I'd be interested in your comments on how they sound compared to your old speakers and the Titans. Thanks.

MikE


Hi MikE. Well, I haven't been doing much with the speakers at all...except listening to them ;) I don't know how many times I've wanted to experiment with positioning...but decided to just sit down and listen instead...of course...that's when I get a chance to listen to them ;)


How do they compare to my old speakers? My old speakers had nice tone and some good imaging and soundstage. These don't produce quite the width as my old speakers. The still have width...and also have good depth of soundstage. Imaging is very good with these new speakers.

In regards to sound...my old speakers really don't compare. How do they compare to the TiTans? well...it certainly would be nice to have the money and room for the TiTans...but I don't. These speakers have much of the same sound. I couldn't be happier.

Hey GF,

Just wanted to let you know how much I appreciate you walking through the process. I'd looked at your system briefly before but I now have a real appreciation for what you've done building those speakers.

The Salad Horn/tweeter cab and layout is absolutely stunning.

Thanks,

Brad

What a beautiful job you have done there fisherman. I bet you are having a great time listening to these speakers. I missed it, what tweeters do you use in them and why? I sure would like to hear these speakers, do you mind having visitors stopping in? LOL I could do a red eye turn around some time.

Thanks for the kind words Dingus. I really learned alot during this speaker project.

What a beautiful job you have done there fisherman. I bet you are having a great time listening to these speakers. I missed it, what tweeters do you use in them and why? I sure would like to hear these speakers, do you mind having visitors stopping in? LOL I could do a red eye turn around some time.

WW...thanks :) I'm using Fane st-5022 tweeters. The reason I'm using them? They're fairly efficient. But I really didn't shop around much when I decided to get the Fanes. There just isn't anywhere I could have gone to listen/audition high efficiency tweeters...and buying a couple different models was certainly out, after buying the rest of the parts...I sure didn't (and still don't) have the money to buy a couple sets of tweeters to experiment with.
So, I did do a bit of listening to what driver/horn combo I wanted. I decided on the 2441 2" JBL driver hooked to a 500Hz EdgarHorn "SaladBowl". In one of Bruce Edgar's designs...he uses the JBL 2441's with his 350Hz horn...and has the Fane tweeter on top. Knowing that I liked the sound of these speakers...I decided to go with what I know worked with the driver/horn.

How does the tweeter sound? it sounds good. But, after reading some of your posts...I don't think this tweeter sounds like it would stand out to your preferences. Of course...that's a topic for a whole different discussion ;)


Visitors? just make sure I'm home ;)

So, I did do a bit of listening to what driver/horn combo I wanted. I decided on the 2441 2" JBL driver hooked to a 500Hz EdgarHorn "SaladBowl". In one of Bruce Edgar's designs...he uses the JBL 2441's with his 350Hz horn...and has the Fane tweeter on top. Knowing that I liked the sound of these speakers...I decided to go with what I know worked with the driver/horn.

Hi, I thought I'd BUMP this thread from way back. The pictures don't load any more -- any chance of getting an updated photo or two?

I am waiting for delivery of 500hz Edgarhorns as well as a pair of JBL 2441's -- I might have both in my hands in a couple of weeks. I ordered the saladbowls to put on top of a giant BLH with Altec 515E or JBL 2205J (trying both to see...), but will also try the combination on top of a Tannoy GRF-R BLH cab with Altec 414. Will also try a friend's GPA 399 drivers with the Edgarhorns.

Very intersting Rick, I'm going to be starting on an Edgar style horn system this year as well and would like to share thoughts and notes with you - why not start a new thread?

New thread = YES! In DIY forum, yes? I don't think I have enough, but with you there, we should be able to keep something going.

DIY sounds like the right place. :)

cant see the old images though!