Just a wild guess....Thanks kevin, nope no kids yet, I'm only 26, still young and want to have my own toysthey are probably not too far out though. howd you know.......
Kevin Haskins
Exodus Audio
LittleMike's Anarchy Tapped Horn
I'll admit that I did not get this one built by myself, but it is my design. I've got the wood cut, just been too busy with other things. Much thanks to Todd (radman12) for taking the plunge and building this on my simulations and speculations alone. I was able to visit with Todd on Friday and measure the results.
This is the design I posted in the Shiva TH thread, it is a single Anarchy driver in a folded tapped horn.
Remember the three fundamental parameters we get to choose two of at the expense of the other?
Loud
Low
Small
I chose low and small. Heresy - I know - I sacrificed SPL.
The idea was a "rest of the world" type of sub - reasonably sized with respectable performance. A pair placed along walls or in corners should be adequate for 99% of the potential users. That last 1% all post in the forums I frequent, and are all reading this, so this is not a high-powered monster home theater sub for you. It should be a decent little sub and it really is designed to be used in multiples. A pair of these in corners or along walls should get to 100 dB at a typical LP from 25 Hz on up with under 100 watts per driver. Four should do reference levels plus.
He's got a build thread over at AVS, I am working on plotting the measurements now.
This is the design I posted in the Shiva TH thread, it is a single Anarchy driver in a folded tapped horn.
Remember the three fundamental parameters we get to choose two of at the expense of the other?
Loud
Low
Small
I chose low and small. Heresy - I know - I sacrificed SPL.
The idea was a "rest of the world" type of sub - reasonably sized with respectable performance. A pair placed along walls or in corners should be adequate for 99% of the potential users. That last 1% all post in the forums I frequent, and are all reading this, so this is not a high-powered monster home theater sub for you. It should be a decent little sub and it really is designed to be used in multiples. A pair of these in corners or along walls should get to 100 dB at a typical LP from 25 Hz on up with under 100 watts per driver. Four should do reference levels plus.
He's got a build thread over at AVS, I am working on plotting the measurements now.
21 - 33 of 33 Posts
Kevin Haskins
Exodus Audio
Hey Radman.... would you be willing to test out a signal processing/amplifier tool with your Anarchy? I've designed a quick PCB that has a steep 4th order filter under Fc, another selectable 2nd/4th order LP filter and a couple LM3886s to power the driver. I've also thrown in a couple optional notch filters so someone could play with room issues if they wanted to stuff the board.
I'll need to prototype the boards and build and test them for stability which will take a month.
Kevin Haskins
Exodus Audio
I'll need to prototype the boards and build and test them for stability which will take a month.
Kevin Haskins
Exodus Audio
I'd be more than happy too just let me know.
just let me know.Ok... Mike is going to send me the measured FR and the HornResponse model tonight. I'll use that as a starting point and the two of you can test it and give me some feedback. I'm betting I can nail the electronic part on the first try.
Kevin Haskins
Exodus Audio
Kevin Haskins
Exodus Audio
perfect sounds good, looking forward to the opportunity. What are we wagering for bets?
A 6-pack of Black Butte Porter.perfect sounds good, looking forward to the opportunity. What are we wagering for bets?
Kevin Haskins
Exodus Audio
Mmm, porter.
Cabinets look nice- did you use screws, or a nailgun with small brads?
Hey Radman, you've got the four wired for a load of 4 ohms driven by 240w total, correct? Would you say they're a bit underpowered, or capable of handling, say a 115w amp each?
Cabinets look nice- did you use screws, or a nailgun with small brads?
Hey Radman, you've got the four wired for a load of 4 ohms driven by 240w total, correct? Would you say they're a bit underpowered, or capable of handling, say a 115w amp each?
This is very tempting to build :dumbcrazy:
I could fit four in each corner of my room easily. But, one of them would have to be about a yard away from the wall because I have a door there. Oh well. I need to get some REW measuring equipment first, so everything else is way down on my list right now.
Will you guys be posting REW graphs, or something similar so we can see the real-world response?
I could fit four in each corner of my room easily. But, one of them would have to be about a yard away from the wall because I have a door there. Oh well. I need to get some REW measuring equipment first, so everything else is way down on my list right now.
Will you guys be posting REW graphs, or something similar so we can see the real-world response?
This is as close to real-world as I can get right now. 2pi (groundplane), driven with 2.83 V.This is very tempting to build :dumbcrazy:
I could fit four in each corner of my room easily. But, one of them would have to be about a yard away from the wall because I have a door there. Oh well. I need to get some REW measuring equipment first, so everything else is way down on my list right now.
Will you guys be posting REW graphs, or something similar so we can see the real-world response?
This was measured with REW, just presented differently so I could compare the HornResp model with the actual results.
In room responses are too room-dependent for them to provide any sort of meaningful comparison. Radman12 has stated that when driving all four of his with a Dayton 240W plate amp (~150 W into 8 ohms) he has measured 124 dB in his room.
This is as close to real-world as I can get right now. 2pi (groundplane), driven with 2.83 V.
This was measured with REW, just presented differently so I could compare the HornResp model with the actual results.
In room responses are too room-dependent for them to provide any sort of meaningful comparison. Radman12 has stated that when driving all four of his with a Dayton 240W plate amp (~150 W into 8 ohms) he has measured 124 dB in his room.
Haha, I didn't even see that was a REW graph. Looked right over that I guess.
That's pretty good for a 6.5" midwoofer :bigsmile:
As for the construction i used PL and brads. I also have them wired in series/parallel.
I built 4 of these purchased as flat packs from Erich at DIY Sound Group. I couldn't be happier. Two in the front corners of my small basement HT provide sufficient bass for music and movies, so, naturally I built two more. Adding the second pair provides greater SPL, not lower extension.
Nice! I think this is a good project for someone who wants multiple subs in a small room to smooth out response, but doesn't need huge output.
21 - 33 of 33 Posts
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