Multi-room Amplifier Yamaha XDA-AMP5400RK Black

Eight-channel Class D installation amplifier for multiroom systems with bridged-mode capability

The XDA-AMP5400RK is a multi-zone installation amplifier designed as a companion to the Yamaha XDA-QS5400RK unit, expanding the number of speakers served or increasing power in a multiroom audio system. It can also be used with Yamaha AV receivers featuring Zone 2 pre-out outputs, where it covers the sound for additional rooms. The eight channels are arranged as 2 channels × 4 zones in a 1U rack-width chassis, so it takes up minimal installation space.

The amplification section is built around integrated ICEpower modules delivering 50 W per channel into 8 ohms, 100 W into a 4-ohm load and, once bridged (BTL), up to 200 W into 8 ohms with a single channel driven. The signal path uses a balanced audio circuit with PML capacitors, which Yamaha also employs in its AVENTAGE separates. The differential circuit layout suppresses ground loops and the associated hum that arises when a larger number of devices are connected within a single rack.

Four audio buses, with the supplied jumpers and cables, allow inputs and outputs to be patched into a wide range of speaker and zone configurations; the RCA outputs (2-channel through out) can alternatively feed active subwoofers or dedicated subwoofer amplifiers. A frequency response of 5 Hz – 40 kHz (+0/-3 dB), a signal-to-noise ratio of 108 dB and harmonic distortion of 0.04 % translate into a legible midrange, stable instrument localisation and a quiet background even at low listening levels.

Installation practice is addressed by Euroblock-type speaker terminal connections, a detachable mains cable, removable rack brackets for shelf placement and a magnetic front panel that prevents unauthorised tampering. Linking the trigger ports (4 inputs / 4 outputs) provides automatic power-on and power-off of selected zones together with the XDA-QS5400RK without any additional control interface, while audio signal sensing inputs and an IR input/output broaden control options with other sources. Automatic standby reduces consumption to 0.3 W.

Key features

• Amplification: Eight ICEpower channels, 50 W/8 ohms, 200 W bridged
• Design: Balanced circuitry, PML capacitors, ground loop suppression
• Configuration: Four audio buses with jumpers for various zones
• Installation: 1U chassis, Euroblock terminals, magnetic front panel
• Control: Trigger I/O 4/4, IR I/O and audio signal sensing