I've had this amp for years and it's come up trumps again and again so I thought I should share it with everyone.
It's actually a Yamaha DSP -E800 which was designed to allow audiophiles to add surround sound to their system without compromising the 2 channel sound. However with a few settings you can convert it to an excellent 2ch power amp.
It has inputs for 6 channels which can be switched to bypass the inbuilt pre amp at the back. You have to select 6ch input on the front too.
It also has a 4/8 ohm speaker selection switch as well for impedance matching. I've used this to good effect when the bass sounded a little loose, so it does work.
The power spec is 70w X3 so if you only use 2 channels then you have a nice over specified power supply.
You also have the option to use it as a 2 channel integrated, with or without the inbuilt dac. You just have to select the effect to be "Disco"(!) which means the rear surrounds mirror the front main speakers. You need to set up the rear surrounds as large so they get all the bass, switch off center speaker and sub etc.
It says Natural Sound on the front, and I have to say compared to many so called audiophile dedicated power amps, I have to agree. I'm currently using it with a fancy Ming Da pre and, although it seems ridiculous, it sounds great!
They can be picked up for about £50 and represent an absolute bargain. I'd anyone wants to try one to verify my findings then I strongly recommend it!