Audio Alchemy DPA-1M Monoblock Power Amp (Pair)

Excellent Condition, looking to sell as a pair....
One of Absolute Sounds 50 Greatest Bargains in High-End Audio (http://www.theabsolutesound.com/articles/50-greatest-bargains-in-high-end-audio/) and Top Picks Power Amps <$2k (http://www.theabsolutesound.com/articles/2018-buyers-guide-power-amplifiers-under-2000/). 
"The DPA-1 is a stereo switching amplifier capable of 125Wpc into 8 ohms and 200Wpc into 4 ohms. The front panel offers more features than traditional power amplifiers, including selectable gain (a +6dB button), clipping indicators, a mute button, and soft-start warm-up. Both balanced and unbalanced inputs are provided. The DPA-1M is a monaural version of the same amplifier, delivering 325W into 8 ohms and 400W into 4 ohms. Both amplifiers feature a Class A input stage and a Class D output stage, based on Bruno Putzeys’ Hypex UcD module. (The DPA-1M monoblock simply bridges two of these modules for greater output power.) Sonically, both amplifiers have a lively, upbeat sound, powerful rhythmic drive, wide dynamic expression, and rock-solid visceral grip in the bottom end. " 
Power output (0.1% THD+N, 1 kHz): 325 watts into 8Ω; 400 watts into 4Ω Frequency response: +/-0.25 dB, 20 Hz to 20 kHz Nominal THD+N (1 watt into 8Ω): 0.05% Signal-to-noise ratio (1 kHz)” 100 dB unweighted Input impedance: XLR: 17.0 kΩ in low gain mode, 17.6 kΩ high gain; RCA: 10.7 kΩ in low gain mode, 11.6 kΩ high gain Output impedance: 0.022 Ω Channel separation (1 kHz): -80 dB Gain: 20 or 26 dB switchable Inputs: XLR, RCA, IEC power, 3.5mm trigger Outputs: 5-way binding posts (two sets)