I was using this in my car but changed to a 2 channel version (DAP3020) now.

Some details that I pulled off http://ampguts.realmofexcursion.com/Philips_DAP4040/ :

Output Power at 12V:
4 x 40W @ 4 ohms
4 x 60W @ 2 ohms
2 x 120W @ 4 ohms bridged
S/N Ratio: >100dB
Channel Separation: >70dB
Freq. Response: 5Hz ∼ 100kHz
Fuse: 30A
Dimsensions: 10.5" x 10" x 2.2" (26.7cm x 25cm x 5.6cm)

It works perfectly, has some scratchs on the top but.

Open to offers.

BUMP.

Want $50.00 firm, good bargain I reckon as it's a decent well known brand. It works perfectly with absolutely no issues, and a brand new well known brand 4 channel amp costs you multiple times that...