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The Devialet Dual Mono per 400 consists of two Devialet 200 units combined in a bridge configuration to deliver 400 watts per channel at 6 ohms. It integrates multiple functions including preamplifier, amplifier, DAC, streamer, and phono stage into a single slim chassis. The system features Devialet's patented Analog Digital Hybrid (ADH) amplification technology, combining Class A and Class D amplification for exceptional sound quality with extremely low total harmonic distortion (THD) of 0.00025% and a signal-to-noise ratio of 133 dB. All inputs are processed digitally, with analog signals converted via an onboard ADC. The amplifier supports digital inputs up to 24-bit/192kHz, upsampled to 384kHz, and includes a phono input with adjustable gain and cartridge loading. The two units operate in a Master/Companion configuration linked by a Crystal Cable digital interconnect. Connectivity options include Ethernet, Wi-Fi via Devialet Air app, asynchronous USB, coaxial, XLR, TosLink, and mini-TosLink inputs. Outputs include digital coaxial for vinyl digitization, analog stereo for headphones, and mono for subwoofer connection. The amplifier measures approximately 15" x 15" x 1.6" and weighs about 5.9 kg per module. It is highly regarded for its technical sophistication, flexibility, and musical performance.
Amplification power output and characteristics
DAC capabilities and digital audio processing
Analog signal output specifications
Phono stage specifications
Input and output connections
Supported streaming platforms and protocols
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Expert 220 Pro Core Infinity's power @ 8ω is 220W against the Mono per 400's 400W, its bit depth 32-bit against 24-bit, and its signal-to-noise 130 dB against 133 dB. Both share max sample rate (192 kHz).
The Expert 140 Pro's power @ 8ω is 140W against the Mono per 400's 400W, its bit depth 32-bit against 24-bit, and its signal-to-noise 130 dB against 133 dB. Both share max sample rate (192 kHz).
The H360's power @ 8ω is 250W against the Mono per 400's 400W and its signal-to-noise 100 dB against 133 dB. Both share bit depth (24-bit) and max sample rate (192 kHz).
The ECI 6DX MKII's power @ 8ω is 125W against the Mono per 400's 400W and its signal-to-noise 135 dB against 133 dB. Both share bit depth (24-bit) and max sample rate (192 kHz).
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