Arcam A50 Signature Integrated Amplifier

Marking 50 years of British hi-fi excellence, the Arcam A50 Signature is the most ambitious integrated amplifier Arcam has ever built. Developed in collaboration with Arcam co-founder John Dawson — whose signature appears on the rear cowl and PCBs — the A50 Signature is a statement of everything the company has learned about Class G amplification across half a century. 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.