Econo Waveguide buy
- Thread starter djnagle
- Start date
Russellc
Addicted Member
Actually, the woofer crossed over at 900 in one crossover, and 1200 in another. The high pass for the horn is around 2.5 or so. I have tried them at 800 and that was pushing it.( I also used JBL 2425H, the selenium isnt to happy that low) The cross over for the econowaveguide is asymetric, that is it isnt at 900 hz or whatever on both drivers. The mix of ( depending on which crossover, i.e. woofers over 95 db or under 95 db, and whether or not the woofer is one particular JBL model) 1200 on the woofer and 2.5 on the horn result in a flat response and actual crossover (once electrical and accoustical responses combine) appears to be around 1500 or so.
Russellc
Russellc
Addicted Member
I agree. this is one inexpensive part, and the project's crossover and compensation is designed for this driver AND waveguide. It is quite a science to compensate a compression driver/waveguide, each different one requiring its own particular compensation. This one is all worked out, and is a peach to be sure.
I'm glad to see this project spreading, Its an excellent opportunity for AK members to build a super performing speaker, and I do mean super, for very little dough. A through read of both econowave collaberative, as well as the insignia collaberative is a wonderful education on how crossover design can be done, how to impliment the 239 dollar Beringer RTA, and great info on compensation, particularly on compression drivers and waveguides.
A great project, a kickass speaker, as well as a great education is here for all AK members.
I'm glad to see this spread, now as a group buy, later more and more members will have the opportunity to hear this project...then it will grow even further!
Russellc
dnewma04
The Healer
The only thing that really keeps me from going that direction is just what you describe, I have nothing against kits established designs as a starting point for someone wanting to play around or get into speaker building. I still play around with such things, but most of the fun of speaker design for me is the design portion, not the building portion. That's why I like the PE waveguide. It actually measure more like a waveguide then the PT and is just about as inexpensive. If someone wanted to make a quasi gedlee summa clone, the PE will get you closer albeit not quite there.
In any case, I don't doubt that the PT waveguide project will get you an awful lot of performance without spending too much money. It's just not for me at this point.
In any case, I don't doubt that the PT waveguide project will get you an awful lot of performance without spending too much money. It's just not for me at this point.
Kegger
R.I.P. 1/12/1966 - 6/1/2017
So your saying you've tried 800hz and it's pushing it, so 900hz would be a realistic cutoff point for the waveguide?
Russellc
Addicted Member
For the wave guide yes....I just dont know how the selenium driver from econowave would like it. Again, when I did it I screwed on the JBL 2425H on top of an A7 of all things.
I'm sure the waveguide itself, while functioning at 800hz, would likely prefer the higher point required by econowave. I dont have an RTA yet to check the response, unfortunately.
Russellc
