The 3510 is the successor to the very popular 3010S2D. Housed in the same size chassis, it has a lot in common with its predecessor. The main improvements are in current delivery of the output stage, which is now much higher and seriously impressive for an amplifier at this price point (presumably thanks to an even larger mains transformer). This is a classic sounding Exposure amplifier, punchy yet not unrefined that majors on rhythmicality. It'll grab tricky speakers by the scruff of their necks too, making it suitable for a wide variety of setups. Internal cards can be added for an MM or MC phono stage or a DAC (but not both at the same time). These are available as a separate items or pre-fitted. Technical specifications: Power Output (Stereo): 110W per channel at 1kHz into 8 OhmsPre-Amplifier Output: 1.9V for rated input (gain +18dB full volume) Maximum Output: 7.7V RMS @ 1kHzFrequency Response: 20Hz - 20kHz ± 0.5dB Total Harmonic Distortion: 100dB, ref. rated output Channel Separation: >60dB, 20Hz - 20kHz Output Impedance: