Accustic Arts : AMP II - MK 2
Premium Dual-Mono Power Amplifier 
Reference power amplifier; our bestseller and world-wide champion

The Accustic Arts Amp 2 MkII power amplifier offers effortless power (2 x 260W into 8 ohms, 2 x 425W into 4 ohms) with a high end design that matches perfectly with an Accustic Arts pre amplifier and any other fine hi-fi. One of the best large power amps we've ever heard.

AMP II - MK2 highlights

• Dual-mono reference power amplifier with completely isolated power supply for each amplifier channel
• 24 selected MOS-FET output transistors of finest quality
• Magnetically shielded and encapsulated toroidal core transformer of premium quality for highest output reserves
• Maximum total transformer power: 2,200 VA (watts)
• Optimum smoothing thanks to 160,000 μF power supply capacity; Premium quality capacitors (“Made in Germany”)
• Very high damping factor for perfect speaker control
• Professional protection circuit against clipping, HF oscillations and too high DC offset
• Integrated switch-on current limitation for highest operational safety
• Constant low operating temperature due to generously dimensioned heat sinks
• Balanced input (XLR) and unbalanced input (RCA) – the inputs are switchable
• All used components and parts are selected and of highest quality
• Very high quality, gold-plated bi-wiring/bi-amping speaker terminal
• Extremely stable, massive and resonance optimized housing, fully made of aluminium; inlay made of massive brass, polished and chromed
• ACCUSTIC ARTS® AMP II - MK2 is “Handmade in Germany”

Specifications

• Voltage gain: 31.0 dB
• Total transformer power: approx. 2,200 VA (watts)
• Power supply capacity: approx. 160,000 μF
• Input impedance: balanced (XLR): 2 x 20 kΩ
• unbalanced (RCA): 100 kΩ
• Rated power output: max. 2 x 650 watts on 2 Ω
• (at THD+N = 0,1 %) max. 2 x 425 watts on 4 Ω
• max. 2 x 260 watts on 8 Ω
• Rise time/fall time: 3.1 μs with 4 Ω load
• (square-wave 20 kHz, 12 Vpp)
• Crosstalk: 109 dB with 1 kHz
• Signal-to-noise-ratio: -103 dBA (ref. 6.325 V)
• Intermodulation distortion: 0.007 % with 10 watts on 4 Ω
• Distortion factor (THD+N): 0.0012 % on 4 Ω load
• at 1 kHz and 10 watts
• Dimensions (H x W x D): 350 x 482 x 430 mm / 13.8 x 19 x 16.9 inches
• Weight: approx. 55 kg / 121 lbs.