Possible DIY (sort of...) powered speaker project?

[CurtZHP]

I've come into a pair of old Polk Audio Monitor 5 speakers.  They work great, but they are cosmetically rough.  Pretty beat up looking from their tenure as production room monitors in a radio station.

I was tossing around the idea of putting a small mono amplifier in each cabinet to create a pair of powered monitors.  Just spit-balling at this point.  Didn't want to design anything.  Are there kits, or even just designs with available PCB layouts, that would work?

More aggravation than it's worth?

 

[JohnRoberts]

One of my side projects is to mount 6 channels of Bruno Putzey's class D amps into an old AV amp chassis. This project is unfinished but in the queue. The amp modules I already sourced are pretty slick... They have their own switching PS so accept mains voltage and are small..

JR

 

[boji]

I think Parts Express have recessable amp kits specific for your needs.  'Course ebay has tons of small-factor speaker amp cards as well.

 

[kooma]

I've used those cheap ebay tpa amp modules. You can find ones with bluetooth or eq if you need.

 

[CurtZHP]

One of my side projects is to mount 6 channels of Bruno Putzey's class D amps into an old AV amp chassis. This project is unfinished but in the queue. The amp modules I already sourced are pretty slick... They have their own switching PS so accept mains voltage and are small..

JR

Can you give me a link to what modules you found?

 

[JohnRoberts]

Can you give me a link to what modules you found?

https://www.diyclassd.com/product/ucd34mp/26

UcD34MP
4x 70W @ 4 Ohm

and

UcD32MP
2x 30W @ 4 Ohm

Apparently the 2x30W is now obsolete so no longer available.

I ordered the cable sets because they use a number of audio i/o connectors that were difficult for me to source.

I need to get back on this project (modest 6 channel system for my living room). The amps have been sitting around for a couple months.

========

They also make a series of plate amplifiers that may be better for your application.

https://www.diyclassd.com/plate-amplifiers/

I haven't fired mine up yet, but Bruno Putzey is well respected for his audio design chops.

JR

 

[CurtZHP]

Thanks!