ACCUSTIC ARTS® AMP III – For those looking for a little more

The AMP III is based on the amplifier technology of our legendary AMP II amplifier and is designed for customers seeking maximum power who also want audiophile amplifier performance. The AMP III therefore has the 4  separate final stage circuit boards from the AMP II and combines these in such a way that respectively 2 boards are available for each channel. Both these boards are also divided with an inverting and non-inverting signal component. The AMP III with its symmetrical technology is therefore a completely unique power amplifier. An amazing 48 hand selected MOS FET transistors together with 2 enormous 1600 VA transformers deliver huge power. Due to the extremely high performance and the concept according to the Class A/AB principle it should be noted that the AMP III is only destined for loudspeakers which exceed a minimum impedance of 4 Ohm. In fact 8 Ohm systems are preferable – for those looking for a little more.

AMP III highlights

  • Extremely powerful dual-mono high-power amplifier with completely isolated power supply for each amplifier channel
  • 48 selected MOS-FET output transistors of highest quality with a maximum power output of 1,000 watts per channel (4 Ω)
  • Magnetically shielded and encapsulated toroidal core transformer of premium quality for highest output reserves
  • Maximum total transformer power: 3,200 VA (1,600 VA per channel)
  • Optimum smoothing thanks to more than 240,000 µF power supply capacity; premium quality capacitors (“Made in Germany”)
  • Very high damping factor
  • Integrated protective circuit against clipping, HF oscillations and too high DC offset
  • Integrated switch-on current limitation for highest operational safety
  • All used components and parts are selected and of highest quality
  • Fully balanced XLR-inputs
  • 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 III is “Handmade in Germany”

Specifications

Voltage gain:
25 dB

Power consumption without load:
approx. 330 watts

Total transformer power:
maximum 3,200 VA (watts)

Power supply capacity:
more than 240,000 µF

Input impedance:
Pin 1 to Pin 2: 20 kΩ
Pin 1 to Pin 3: 20 kΩ
Pin 2 to Pin 3: 40 kΩ

Rated power output (at THD+N = 0,1 %):
max. 2 x 1,000 watts on 4 Ω
max. 2 x 600 watts on 8 Ω

Minimum speaker impedance:
4 Ω per channel

Rise time/fall time:
3.1 µs on 4 Ω load (square-wave 20 kHz, 12 Vss)

Crosstalk:
109 dB with 1 kHz

Signal-to-noise-ratio:
-95 dBA (ref. 6.325 V)

Intermodulation distortion:
0.008 % with 10 watts on 4 Ω

Distortion factor (THD+N):
0.003 % on 4 Ω load at 1 kHz and 10 watts (effective bandwidth 22 Hz – 22 kHz)

Dimensions (H x W x D):
350 x 482 x 430 mm/13.8 x 19 x 16.9 inches

Weight:
approx. 60 kg/132 lbs.