So the Buttkicker let out the magic smoke 6 years ago, and has sat in a dark corner of the shop since then. I dragged it out and measured the output of the power supply and got 77 volts on either side of neutral. The board says plus minus 70, I assume it is high due to no load. Great chassis to start a repurposing exercise with.
It was originally rated for the better part of two killowatts, so a fairly beefy, but un-regulated power supply.
Is there a d class board that I could slide in there and have fun with?
It was originally rated for the better part of two killowatts, so a fairly beefy, but un-regulated power supply.
Is there a d class board that I could slide in there and have fun with?
The most power you can get with full bridge configuration. Approximately 2 x 1200 W RMS power and 2 x 2000W music power at 4 ohm is very likely, but if the transformer is realy strong, then you can expect more RMS. The easiest way to get info about the power is via measuring primary and secondary resistances. (I hope you know how to measure small resistance.) Do you need this much power at this impedance?
The recommended Shure amp is unfortunately a half bridge, so 4 of them is needed to achieve the goal above. I would build 2 full bridges with IRFB4227 and BD modulation.
The recommended Shure amp is unfortunately a half bridge, so 4 of them is needed to achieve the goal above. I would build 2 full bridges with IRFB4227 and BD modulation.
The Buttkicker is a single channel amp rated at 1000Wrms@4-ohms and 1900Wrms@2-ohms. The amp was designed to drive tactile transducers.
I overlooked the fact that the Sure amp is half-bridge. Bus-pumping could be a problem in mono use.
Ugh. Thanks.
I was hoping for a super cheap solution, I am in love with the sound of the 3116 and the price of the boards.
I don'tactually have a need, just thought if I could throw something cheap in there after gutting the right side, it would be a fun project. The power supply definitely has some guts.
I was hoping for a super cheap solution, I am in love with the sound of the 3116 and the price of the boards.
I don'tactually have a need, just thought if I could throw something cheap in there after gutting the right side, it would be a fun project. The power supply definitely has some guts.
Yeah, not too many cheap boards for supply rails that high. I think this one is your cheapest option...
YZ- IRAUD2000 Power amplifier board IRS2092S IRFP4227 2000W amp board CL-136 | eBay
Or even less without the bulk caps...
Top Iraud2000 Class D Amp Irs2092s IRFB4227 7G23A-22UH Digital Amplifier Board | eBay
It has a switch for bridge-mode that makes everything a bit easier. No worries about bus-pumping. Bridged 4-ohm might be a bit sketchy; depends on how much the supply sags under load.
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