Amp board for 150W into 8 ohms - which one?

ani_101

Look for an amp board which can supply at least 150W into an 8 ohm load, ideally 200W into an 8 ohm load for a bit of head room and reasonable THD. With a lot of the boards being rated at 3ohm for dismal power and THD, is this a very high requirement? also ideally a stereo board...

JasonP

The IRS2092 boards have good reputation and produce about that much power, IIRC. Class D Audio also has a good repute and their CDA-500 board can do 250Wx2 into 8 ohms.

ani_101

The only part I am not sure about the IRS2092 is the power supply, due to its requirements of dual power supply, the PS is going to be huge... 

ani_101

Any compact switching supply can provide the juice for either of these amp boards?

PWRRYD

As they say, there is no free lunch.

hongrn

Ani, take a look at this. I've had it for almost 3 years now, and not a single issue. It's Class AB though:

http://sound.whsites.net/project101.htm

ani_101

hongrn said:

Ani, take a look at this. I've had it for almost 3 years now, and not a single issue. It's Class AB though:

http://sound.whsites.net/project101.htm

Thanks Hong. do you have any pictures of the amp or of it's innards. I want to get into building amps, but still haven;t taken the first steps...! 

hongrn

The build is right here:

http://techtalk.parts-express.com/forum/tech-talk-forum/62610-esp-project-101-lateral-mosfet-amplifier?243262-ESP-Project-101-Lateral-MOSFET-Amplifier=