Power amplifiers stereo — Chord ALTO

The ALTO is a compact stereo power amplifier from Chord Electronics, built into a remarkably lightweight chassis with an exceptionally wide bandwidth. The ALTO brings Chord's considered engineering to a space-efficient two-channel power amplification format.

Key specs that matter

Output power is 50W into 4 ohms. Frequency response spans a wide 6Hz to 60,000Hz within plus-or-minus 3dB. Signal-to-noise ratio reaches 120dB, with total harmonic distortion plus noise at an exceptionally low 0.003% with full global feedback. At a remarkably compact 215 x 200 x 57mm and just 1.946kg, the ALTO is among the smallest and lightest stereo power amplifiers currently available with this measured performance.

Sound and use context

Expect exceptionally clean amplification reflecting the strong 120dB signal-to-noise and low 0.003% distortion figures, packed into a remarkably compact and lightweight chassis consistent with Chord's characteristic distinctive industrial design.

Pairing

The compact chassis suits space-constrained system placements, and the 50W output pairs well with efficient loudspeakers.

Alternatives

Chord's own ULTIMA 5 offers a considerably more powerful alternative within the brand's flagship Ultima series.