The Cambridge Audio Alva Duo is a phono preamplifier for both moving magnet and moving coil cartridges, with a built-in headphone amplifier. It boosts and equalises the low-level signal from a turntable so it can be played through any line-level input, and adds a headphone output for private listening straight from the source.
Why This Model Matters
Not every amplifier includes a phono input, and the ones that do are often limited to moving magnet cartridges. The Alva Duo handles both moving magnet and moving coil, making it a flexible upgrade path for listeners experimenting with higher-end cartridges. A switch-mode power supply operates outside the audible band to reduce hum, while a surface-mount circuit layout and a subsonic filter keep noise and motor rumble out of the signal.
It reflects Cambridge Audio's "Great British Sound" philosophy of adding as little character as possible to the recording, and it was well received on release—What Hi-Fi called it "a well-specified, full-bodied, dynamic performer." The integrated headphone amp makes it a compact, self-contained way to enjoy vinyl without a full amplifier in the chain.
Highlights
Phono preamplifier for moving magnet and moving coil cartridges
Built-in headphone amplifier
Switch-mode power supply to reduce hum
Subsonic filter to eliminate motor rumble
RCA line-level output, auto power-down, and under 0.5 W standby
Part of Cambridge Audio's Alva vinyl range
Who It's For
The Alva Duo is aimed at vinyl listeners whose amplifier lacks a phono input or supports only moving magnet cartridges, and at anyone who wants to listen on headphones directly from their turntable. It is a natural match for a growing system where a moving coil cartridge might be on the horizon.
