[mix4fix]

Somebody made an open top enclosure to house two Parts Express chip amps, a power supply, and connections. You use a regular power cord, it has a master power switch, plus the two chip amp knobs. The guy who built this modded the chip amps (not sure of the mod) so you can zero the DC voltage on the output. The chip amps needs to have a connection re-soldered and re-installed (or have the mod components removed so the chip amps are stock). Right now, one stock chip amp is installed.

https://www.parts-express.com/Dayton-Audio-DTA-2-Class-D-Digital-Audio-Amplifier-Module-300-385
https://www.parts-express.com/pedocs/manuals/300-385--dayton-audio-dta-2-class-t-digital-audio-amp-user-manual.pdf

Here are original photos when I received it.







Local pickup only.

[S Clark]

Local pickup only.
[/quote]

It might help to include a location under these requirements.   

[mix4fix]

Northern Virginia.