AK Design Collaborative - Insignia-Class Economy Speakers (a.k.a Indignia)
- Thread starter Zilch
- Start date
frperdurabo
AK Member
I'd seal the port with a Zilchplug. Then put a first order crossover on you woofer box with a crossover somewhere between 100 - 250 hz. The woofer box should probably be 3-5 db louder than the Indignia.
Yep, 3 Triscas would work well.
jackgiff
Well-Known Member
Indignia Max?
I recently served on a Call Committee that brought two new pastors to our church. I wanted to do something special for them, and what could be nicer than a vintage stereo system. And breaking the bank was not part of the goal. Two Kenwood KR 4010's were found and after clean up and re-veneering them they both play very nice, and look decent.
I had four 10" woofers on hand that came from some speakers that were given to me. After being refoamed, they tested great in a one cubic foot sealed cabinet, but were just laying around. Four woofers equals two pair. EconoWaves were my first thought, but to save a bit of money the Indignia HF circuit was chosen. And also that would be a tribute to my friend Evan (Zilch).
Two pairs of one cubic feet cabinets were built for these Indignia Max's, and they were veneered in walnut (bought from another AK'er). A few changes were necessary in the crossover values, due to the higher sensitivity of the unknown woofers. The tweeter dropping resistor was lowered from 7 Ohms to 5 Ohms. They play even smoother to my ears than the Indignias that were built for a friends beach house. And the 10" woofer makes better bass than the stock Indignia woofer. All in all, very satisfying.
The pics show all four speakers piled on the floor, set on a pair of speakers showing one with no grille and one turned to see the back, and all speakers shown with one of the KR 4010's.
I recently served on a Call Committee that brought two new pastors to our church. I wanted to do something special for them, and what could be nicer than a vintage stereo system. And breaking the bank was not part of the goal. Two Kenwood KR 4010's were found and after clean up and re-veneering them they both play very nice, and look decent.
I had four 10" woofers on hand that came from some speakers that were given to me. After being refoamed, they tested great in a one cubic foot sealed cabinet, but were just laying around. Four woofers equals two pair. EconoWaves were my first thought, but to save a bit of money the Indignia HF circuit was chosen. And also that would be a tribute to my friend Evan (Zilch).
Two pairs of one cubic feet cabinets were built for these Indignia Max's, and they were veneered in walnut (bought from another AK'er). A few changes were necessary in the crossover values, due to the higher sensitivity of the unknown woofers. The tweeter dropping resistor was lowered from 7 Ohms to 5 Ohms. They play even smoother to my ears than the Indignias that were built for a friends beach house. And the 10" woofer makes better bass than the stock Indignia woofer. All in all, very satisfying.
The pics show all four speakers piled on the floor, set on a pair of speakers showing one with no grille and one turned to see the back, and all speakers shown with one of the KR 4010's.
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I finally got around to building a pair of Indignias. I wanted these to be in the same price range as the Parts Express BR-1 kit, so I ordered the Indignia parts with a pair of BR-1 cabinets. These Dayton Audio #300-645 enclosures aren't the same quality as the curved cabinets, but their $55/pr price is much more affordable. When I received the package a couple of days ago I was pleasantly surprised to find that the BR-1 encolsures are now cross-braced. In the past there was no bracing in these enclosures, and with their 5/8" mdf walls they vibrated some. I've built a few BR-1 kits for friends, and even though I don't have a pair in the house I remember their sound well. The BR-1 is a phenomenal value for the price, but that Dayton classic woofer doesn't have the best midrange. The Karma Indignia's midrange is a clear step up from the BR-1's.
Most of us who visit these forums would call ourselves audiophiles, and while I don't consider myself an audiosnob, my perceptions of low priced systems have been jaded by listening to some very high quality systems. But if I step out of my audiophile suit and just listen to the music, I find that a speaker like the Kharma Indignia driven by a $150 mass market receiver and a $40 DVD player makes some pretty good music - better than what 99% of the non audiophiles I know listen to. I recommend this kind of system for anybody who's looking for a transitional system, something much better than their computer speakers, but still costing less than $500 for the entire system. :thmbsp:
Most of us who visit these forums would call ourselves audiophiles, and while I don't consider myself an audiosnob, my perceptions of low priced systems have been jaded by listening to some very high quality systems. But if I step out of my audiophile suit and just listen to the music, I find that a speaker like the Kharma Indignia driven by a $150 mass market receiver and a $40 DVD player makes some pretty good music - better than what 99% of the non audiophiles I know listen to. I recommend this kind of system for anybody who's looking for a transitional system, something much better than their computer speakers, but still costing less than $500 for the entire system. :thmbsp:
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tiga
Super Member
Interesting - thank you for sharing. Did you have to do any modifications to the openings to fit the drivers? How much difference in sound quality would there be between using these cabinets versus the curved models? Thanks!
Tiga
Tiga
The BR-1 enclosure's openings are cut and recessed for the same tweeter as the Indignia, so it's a drop-in. The woofer's faceplate is larger than the stock BR-1 woofer, so it doesn't fit into the recess, but it's easy to mount it unrecessed. The 1.5 x 6.5 port is tuned to about 35 hz, which works well for this woofer in the 0.5 cu ft enclosure. In other words no enclosure modifications are required.
I've built speakers using a 7" dayton Reference woofer the Reference tweeter in the PE 0.75 cu ft curved side enclosures, and they're quite a bit more inert than the straight sided BR-1 enclosure. I'm sure and accelerometer would reveal some resonances, but I don't hear anything objectionable in the bass and midbass frequencies.
If you can DIY I recommend a well braced enclosure of 3/4" mdf, and if you're willing to spend the money the PE curved side enclosures are hard to beat, but the BR-1 enclosures are a good choice for anybody needing pre built enclosures on a limited budget. The difference between the cost of an Indignia pair using the curved cabinets versus the BR-1 cabs is significant: about $332 using the curved cabs versus slightly under $200 using the BR-1's. For many of my friends this would mean the difference between having a pair or not having one.
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dnewma04
The Healer
I think if I were to go that route, I'd seal up the indignia portion and build a side firing 10" dayton reference sub into the tower.
I've modeled it and plan on building my first pair in tower formation. going big but keeping the tuning Hz the same (around 27.5Hz if memory serves me) works very well. If you double the volume to .75 ft^3 (or about 21liters) you can use the 1.5" by 4" flared ports sold at PE and get the same tuning. This gets you quite a bit more bass extension without losing too much power handling.
You could go with Zaph's tuning for this woofer however and go all the way up to 1ft^3 (30liters) and shoot for 25Hz. though you start to sacrifice db in the upper bass range.
If you like I can run the figures through unibox for you and post up pics of the results.
specialidiot
Break Glass, Smoke Lucky
Don they look great! What do you think of them?
donprice
Wound up workin' at a gas station....
I like them more than I thought I would. I haven't really listed to anything smaller than an L100 for 20 years (unless it was connected to a PC and/or BOTL).
Very nice, Don. I like the cabinet finish, first rate. My favorite attribute of this design is its non-fatiguing presentation. They are so easy to listen listen to even for extended periods.
As Zilch used to say (I'm paraphrasing), "Indignias are more of a personal sized speaker."
As Zilch used to say (I'm paraphrasing), "Indignias are more of a personal sized speaker."
