Accustic Arts AMP II MK 3 (Silver)

The top priority in the development of the AMP II – MK 3 was a perfect signal feed with short distances using the finest components. Some of the components are individually selected as this is the only way to realise the perfect measurement values which form the basis for the breathtakingly beautiful sound of this dynamic amplifier.

The AMP II – MK 3 is a so-called "dual-mono power amplifier", i.e. apart from the common mains cable both channels are completely separated from each other – from the transformer to the output stage board. This ensures the excellent values, for example, for channel separation and signal to noise ratio, etc. The high performance and simultaneously extremely low distortion in the AMP II – MK 2 is achieved using 2 x 1100 VA transformers, a filtering capacity of 160 000 µF, 24 selected MOSFET output transistors and much more. The result of this substantial oversizing is that even when working under high loads the components are never stretched to their limit of performance and therefore ensure the described excellent values. The AMP II – MK 3 works with Class A operation in most applications. And, despite its enormous power, the AMP II – MK 3 reproduces the finest details with extreme precision, in our opinion just as one would expect from a real reference product.

MP II – MK3 highlights

• Voltage gain: 31.0 dB
• Total transformer power: 2 x 1.100 VA = 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 675 watts on 2 Ω (at THD+N = 0,1 %) max. 2 x 450 watts on 4 Ω max. 2 x 275 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): 0.001 % 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.