Whether the S stands for “Small” or for “Sweet” is a matter of opinion. One thing is clear: the engineers at ESX can think even smaller than QM-Two. The QS-TWO is also a Class D two-channel amplifier, which is a perfect power supplier with an amazing small footprint. The tiny tool is only measuring 70x90x35 mm and provides 2 x 50 / 57Watt RMS at 4/2 Ohm or 1 x 190 Watt RMS bridged at 4 Ohm. The QS-Two is equipped with 2 cinch inputs and outputs, 2 high-level inputs including EPS and equipped with automatic switch-on function.