Integrated amplifiers — Cyrus Audio Classic AMP

The Classic AMP is an integrated amplifier from Cyrus Audio, built as the latest update to a model that has been part of the British brand's lineup for over a decade. This redesign draws directly on everything Cyrus learned developing the acclaimed XR series, folding that technology into the familiar compact aluminium chassis and design language the Classic series is known for, while completely redesigning the internal circuit and upgrading the majority of internal components.

Key specs that matter

Rated output is 91W per channel into 6 ohms, roughly equivalent to 70W into 8 ohms. The wideband power amplifier design responds from DC to beyond 50kHz, ensuring flat frequency response and minimal phase shift across the entire audio band. Connectivity comprises four analogue line-level inputs with relay-based input selection and precision gain control for volume, one MM phono input for a vinyl turntable, two coaxial digital inputs via RCA and two optical digital inputs via TOSLINK feeding a built-in 24-bit/192kHz DAC, plus unbalanced preamp outputs and a 3.5mm headphone output. A substantial 304VA toroidal transformer feeds the amplifier stage, with the preamplifier's own power supply electrically separated and driven from its own dedicated transformer winding, while digital control circuits run from a completely separate mains supply, isolated entirely from the signal circuitry. A dedicated port accepts Cyrus's optional PSX-R external power supply, which routes power internally to the analogue preamp stages and the post-DAC stages of the D/A converter for a more stable, lower-noise supply to the most sensitive circuit sections. A firmware upgrade port allows future updates. Warranty coverage varies by market, with UK listings citing 5 years and US listings citing 2 years.

Sound and use context

Expect a light-footed, relaxed pace that clearly sets this amplifier apart from more clinical rivals - AV Forums reviewer Ed Selley specifically noted the Classic Amp "absolutely flies along, grabbing you, engaging you and making you a participant rather than a spectator," while another reviewer highlighted a genuine dexterity in handling all types of sound that convinces most decisively on outright sound quality.

Pairing

The built-in MM phono stage and 24-bit/192kHz DAC cover both vinyl and digital sources directly without additional outboard components, and the optional PSX-R external power supply offers a genuine, cost-effective upgrade path for buyers wanting to extract further refinement from the same core amplifier.

Alternatives

Cyrus's newer XR series, including the i7-XR and i9-XR integrated amplifiers, sits above this Classic AMP with the technology this model itself borrows from, worth the further investment if the Classic AMP's already substantial performance still leaves ambitions for Cyrus's current flagship-tier integrated amplifier engineering.