Yamaha PX8 Power Amplifier

High-Output Class-D Power for Larger Passive Speaker Systems

The Yamaha PX8 is a two-channel, 2U Class-D power amplifier that delivers 800 W x 2 into 8 Ω and 1,050 W x 2 into 4 Ω (1 kHz, non-clip, 20 ms burst, both channels driven). Its newly developed amplifier engine concentrates the necessary functions into a single custom LSI chip, and the whole unit weighs 7.2 kg.

Onboard DSP provides crossover, filters, delay, limiter and PEQ, together with Yamaha's D-CONTOUR multi-band dynamic processing. Config Wizard assigns optimised settings for Yamaha passive speakers, with presets for the CBR, Club, Installation and VXS/VXC series.

800 W x 2 at 8 Ω, 1,050 W x 2 at 4 Ω

Yamaha rates the PX8 at 800 W x 2 into 8 Ω, 1,050 W x 2 into 4 Ω and 600 W x 2 into 2 Ω, measured at 1 kHz, non-clip, 20 ms burst, both channels driven. That covers everything from a single pair of 8 Ω speakers to lower-impedance loads.

Class-D engine in a 2U chassis

The Class-D design keeps the PX8 to 2U of rack space (480 x 88 x 388 mm) and 7.2 kg. The engine uses PLL technology to control transfer characteristics in real time.

Built-in speaker processing

Onboard processing includes input summing, high- and low-pass filters, delay of up to 74 ms and a speaker processor with 6-band PEQ, limiter and delay. D-CONTOUR multi-band dynamic processing helps keep the sound clear and consistent.

Config Wizard presets for Yamaha speakers

Config Wizard speeds up system setup by assigning optimised speaker settings. It includes presets tuned for each model in Yamaha's CBR, Club, Installation and VXS/VXC passive speaker series.

Eight user presets and panel lock

Store eight programmable presets for instant recall and save them to a USB thumb drive. A panel locking function keeps your settings safe once the system is tuned.

Professional inputs and outputs

Each channel has an XLR and a 1/4-inch TRS input, connected in parallel. Speaker outputs are provided on Neutrik speakON, binding posts and 1/4-inch phone jacks.

Q. What is the PX8's power output?

800 W x 2 into 8 Ω, 1,050 W x 2 into 4 Ω and 600 W x 2 into 2 Ω, all at 1 kHz, non-clip, 20 ms burst, both channels driven, as specified by Yamaha.

Q. Does the PX8 have Power Boost mode?

No. Yamaha offers Power Boost mode on the PX3 and PX5 only. The PX8 and PX10 are two-channel amplifiers with higher output per channel.

Q. Which speakers have presets?

Yamaha's Config Wizard includes presets for its CBR, Club, Installation and VXS/VXC passive speaker series. For other speakers, the crossover, filters, PEQ, delay and limiter can be set manually.

Q. How much rack space does it need?

Two rack units. The PX8 measures 480 x 88 x 388 mm (W x H x D) and weighs 7.2 kg.

Why Buy from YMS?

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• ✓ Expert help: Talk to our team before you buy, or visit our Yamaha Music Square showrooms.