Bel Canto Design Black ACI 600 integrated amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state, class-D integrated amplifier. Digital inputs: AES, S/PDIF, TosLink to 24/192; Ethernet to 24/192, DSD64, MQA; USB 2 to 24/384, DSD128, MQA. Analog inputs: line 1/2, MM/MC phono. Outputs: line/subwoofer, 4.5V RMS; headphones, 4.5V RMS maximum, 32 ohms minimum impedance. Two pairs WBT NextGen five-way speaker binding posts. Power output: 300W into 8 ohms (24.8dBW), 600W into 4 ohms (24.8dBW). Peak output current: 27A. Minimum load: 2 ohms. Frequency response: 0.5Hz–50kHz, ±3dB, all loads. THD+N: 0.001%, 1W, 1kHz, 4 ohms (overall); 0.003%, 1kHz (line); <0.01%, 1kHz, A-weighted (phono). IMD (CCIF): <0.001%, 1W, 14/15kHz, 4 ohms. Output noise (RMS, A-weighted): 35µV, 10Hz–20kHz. Damping factor: >500. Output impedance at 100Hz: <16 milliohms.
Dimensions: 19" (483mm) W by 3.8" (97mm) H by 14" (356mm) D. Weight: 45.2 lbs (20.5kg) net, 51 lbs (23.13kg) shipping.
Serial number of unit reviewed: ACI001146.
Price: $25,000. Approximate number of dealers: 20.
Manufacturer: Bel Canto Design, 221 N. First Street, Minneapolis, MN 55401. Tel: (612) 317-4550. Fax: (612) 359-9358. Web:

Bel Canto Design
221 N. First Street
Minneapolis, MN 55401
(612) 317-4550

DH's picture

One choice of filter, the MQA? No chance to use another type of filter if you tend to prefer it, like a linear phase one?

rom661's picture

Leaving the filter issue aside, you get a streamer, a phono stage, a DAC, preamp and power amp. I'm listening to one now on evaluation, comparing it to a 30K stack and it's quite good. Plus the savings in great cables is immense. Just sayin'...

mrkaic's picture

Not exactly affordable, is it? And not a stellar performer either. The THD is way too high.

rom661's picture

I've been doing this for 30 years and designing for longer. Maybe, just maybe, you can tell more about a piece by listening than by looking at one spec. I love what I do/I hate what I do...

Jason P Jackson's picture

Why is there a picture of a standard power amplifier on page 2? This could not be the internals of the class d Bell Canto.