JoLida 302 B with many extras:  Caddock Resistors, Hovland Music Caps, power supply mods for great speed and capacity, ALPS volume control, many other extras.  The sound of this unit is very revealing with good depth of the sound stage, musical yet very quick, with a tight, extended bottom end.  This was my baby-it is my second favorite amp. 
Frequency response:  15Hz to 100+KHz, 50 W/ch Class AB, 4 and 8 ohm taps, 4 inputs with chassis ground.  Manual control, no remote.