I just hooked one up to some Horn Shoppe speakers.
DVD/VCR joke > Blue Jeans 6'ft Digital > PD DAC > Blue Jeans RCA > MiniWatt N3 > "White Lightening Wood Patio Cord > Horn Shoppe Module 1. All fed by special power conditioner that I make (extremely good, makes Audience Adepts stuff look like toy).
Extremely clinical sound. Tube upgrade would be nice for "warmth" (distortion), and some tone. Bass guitar is more than tight enough even in a system not broken in. I doubt the old diode mod would do any good for this unit. It does however have an ever present sound. It has a small hum or sorts that has nothing to do with the volume, input, or what it is plugged into. This might be due to the new transformer setup for 4/6/8ohm. It is not a bad sound but you can hear it in a quiet room. It is a little bizarre and I wish it was not there. However it is far from as bad as the radio station near my house that gives me darn near imaging on butt rock when nothing in my system is playing, just on.
This thing easily is as good as any nice 300B or McIntosh units I have heard with one small issue. The volume potentiometer is a joke. I would not buy the unit unless I knew I could replace it. I know what a bad pot sounds like because I have heard them a lot and then removed them. It is like a blanket over the music. Anyways that is the only real big drawback from a outrageously affordable power house of an amplifier. I would suggest one of these because it probably fits inside the unit. http://cgi.ebay.com/SMT-Resistor-10K-Step-Attenuator-Volume-Control-Alps-/320494435731?cmd=ViewItem&pt=Vintage_Electronics_R2&hash=item4a9ef4fd93
Anything else to say? It might lean slightly on the bright side (not in a bad way, just a sort of shiny metal way) but again easy tube upgrade. The transient response lacks world class detail, but come on it cost so little... big deal. One change and you are rocking serious gear. At 1/4 volume it is at decently good volume levels for listening on The Horn Shoppe. It provides plenty power for listening and rocking out.
Oh yeah results may vary because not everyone has power conditioning like I do. Well or actually like my grandfather has now (made the stereo for him). You could start with any of the old ones people where making for Squeezebox power supplies to start to get the same thing.