First Fully Dual-Mono Class G Architecture
The A50 Signature is the first Arcam integrated amplifier to use a fully dual-mono Class G architecture. Each channel is a completely discrete amplifier section with its own PCB, output stage, Class G lifter stages, power regulation and dedicated transformer windings. The result is exceptional channel separation and minimal crosstalk — delivering 150 watts per channel into 8 ohms with outstanding control and headroom across a wide range of loudspeakers.
Reference-Grade Digital Conversion
Digital conversion is handled by an ESS ES9039Q2M DAC in fully differential configuration, supported by an ESS reference voltage regulator. Digital inputs include HDMI eARC/ARC, USB-C audio, TOSLINK optical and coaxial S/PDIF. Two-way Bluetooth with Snapdragon Sound, lossless Bluetooth capability and Auracast support complete the wireless picture.
Comprehensive Analogue Connectivity
Three RCA inputs and a balanced XLR input pair cover all analogue sources, while a built-in Class A MM/MC phono stage makes the A50 Signature an ideal partner for turntable users. RS232, trigger input/output and USB service access round out the rear panel.
Key Specifications
- Power Output: 150W per channel (8 ohms)
- Amplifier Class: Dual-Mono Class G
- DAC: ESS ES9039Q2M (fully differential)
- Digital Inputs: HDMI eARC/ARC, USB-C, TOSLINK, Coaxial
- Analogue Inputs: 3× RCA, 1× Balanced XLR
- Phono Stage: Class A MM/MC (built-in)
- Wireless: Bluetooth with Snapdragon Sound & Auracast
- Control: RS232, Trigger I/O
- Dimensions: 431 × 99 × 344mm (W × H × D)
- Weight: 12kg
Available Q3 2026. Part of the Arcam Radia Series.