Great amp, works perfectly. Buy with the Rotel RB-970BX for $500 total. Sorry, no trades. Frequency response: 4Hz to 100kHz. Total harmonic distortion: 0.004%. Input sensitivity: 50mV (line). Signal to noise ratio: 95dB (line). Output: 1V (Pre out). Dimensions: 440 x 72 x 286mm. Weight: 4.3kg