Cambridge Audio MXW70 Power Amplifier

Cambridge Audio MXW70 – Compact High-Power Stereo Amplifier

The Cambridge Audio MXW70 is a compact yet powerful Hypex NCore Class‑D power amplifier designed to deliver refined, high-fidelity sound in a minimalist chassis. Tuned by Cambridge Audio engineers, it offers flexibility for both stereo and high-output mono applications in compact listening spaces.

Power & Performance That Punches Above Its Size

2 × 70 W RMS into 8 Ω (Stereo) or 2 × 125 W into 4 Ω – Brings ample power to bookshelf or floor-standing speakers for immersive, low-distortion listening.

Bridgeable to 250 W RMS into 8 Ω (Mono Mode) – Flip a switch and get a mono-block capable of driving demanding speakers. Each channel in this mode delivers serious output with precision control.

THD < 0.015% @ 5 W/8 Ω – Ensures minimal distortion for clean, transparent sound even at low volumes.

Connectivity & Integration

Inputs:

1 × stereo RCA (unbalanced)

1 × stereo XLR (balanced) — Ideal for studio sources and longer cable runs with minimal interference.

Trigger Support:

1 × 12 V trigger input

1 × trigger loop‑through to power other devices automatically.

Speaker Outputs:

Single set of banana plug/binding-post speaker terminals for stereo or mono connections.

Signal Integrity & Build Quality

Signal‑to‑Noise Ratio: >110 dB (XLR), >89 dB (RCA) — Ensures wide dynamic range and low background noise.

Crosstalk at 1 kHz: < −82 dB — Excellent channel isolation for expansive soundstage.

Gain: 22.2 dB (XLR) and 28.8 dB (RCA) — Matches a variety of preamp outputs and streamers with consistent volume behavior.

Input Sensitivity:

Stereo RCA: 0.9 V

Stereo XLR: 1.9 V

Mono RCA: 1.65 V

Mono XLR: 3.6 V — Allows proper gain staging with most sources.

Practical Design For Modern Use

Frequency Response: 10 Hz – 30 kHz (−1 dB) — Wideband output preserves deep bass and extended treble fidelity.

Power Consumption: 300 W max; Standby: < 0.5 W — Efficient and eco‑aware design.

Damping Factor: >180 @ 1 kHz/8 Ω — Tight control over speaker drivers for improved dynamics and bass response.

Compact & Cohesive Design

Dimensions: 215 × 215 × 57 mm (~8.5″ square) — Half‑width size ideal for stacking or minimal space installations.

Weight: 1.65 kg (3.6 lb) — Light enough to handle easily yet solidly built

Finish: All‑metal chassis in Lunar Grey, matching the MXN10 streamer and DacMagic 200M DAC.

The MXW70 delivers big, detailed sound from a tiny footprint, and is especially ideal if you pair it with Cambridge’s MXN10 streamer or DacMagic 200M DAC for a supremely clean and modular hi-fi stack.