Yamaha PX8 Power Amplifier
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2x 500W at 8Ω
2x 800W at 4Ω
Newly developed Class-D amplifier engine with a custom LSI
Flexible onboard PEQ, crossover, filters, delay, and limiter functions
Yamaha Speaker presets
Utlities for safe and secure operation
Since the 1976 release of the P2200, our first professional power amplifier, Yamaha has strived to achieve the highest possible levels of sound quality, power output, and reliability in sound reinforcement, studio, and installed applications. The new PX series power amplifiers continue this tradition of excellence, utilizing Yamaha’s renowned digital signal processing technology and unparalleled professional audio expertise to achieve a light, durable design, capable of delivering maximum output power to the speakers while simultaneously protecting them with optimized processing. Driven by a newly-developed Class-D amplifier the four new models that make up the PX series are suitable for a broad range of sound reinforcement and installation environments.
Output power; 1kHz Non-clip 20msec Burst Both channels driven | 800W x 2 |
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Output power; 1kHz Non-clip 20msec Burst Both channels driven 4Ω | 1050W x 2 |
Output power; 1kHz Non-clip 20msec Burst Both channels driven 2Ω | 600W x 2 |
8Ω/Power Boost Mode | – |
4Ω/Power Boost Mode | – |
Sampling frequency rate - Internal | 48kHz |
A/D D/A Converters | AD/DA: 24-bit linear, 128 times over sampling |
Frequency response | ±1.0dB (1W, 8Ω, 20Hz to 20kHz) |
S/N ratio | 100dB (A-weighted, 8Ω, Gain setting = +14dBu) |
8Ω Volume max | 32.0dB/+4.1dBu (Gain setting: 32dB), 26.0dB/+10.1dBu (Gain setting: 26dB), 32.1dB/+4dBu (Gain setting: +4dBu), 22.1dB/+14dBu (Gain setting: +14dBu) |
8Ω Volume max /Power Boost mode | – |
Maximum input voltage | +24dBu |
Speaker output ports | Neutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2 |
Line Input | XLR-3-31 x2, 1/4 "PHONE(TRS) x2 |
Indicators | POWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off feature |
Processors | Input summing; D-CONTOUR(FOH/MAIN, MONITOR, OFF); Delay(0 – 74msec); HPF/LPF(cutoff frequency 20Hz~20kHz with polarity control); Speaker Processor(6 band PEQ + Limiter + Delay) |
Total harmonic distortion | 0.03 % @ +14dBu (20 Hz to 20kHz), GAIN knob: Min, 0.005 % @ +24dBu (1kHz), GAIN knob: Min |
Latency | 1.5 msec (Analog Input to Speakers) |
Equivalent input noise | -128 dBu (Mono Input Channel, Rs: 150Ω, GAIN knob: Max) |
Load protection | POWER switch on/off: Output mute; Output voltage protection: Over voltage limiter, user configurable by wattage and speaker preset; DC-fault: Power Supply shutdown (NOT restored automatically) |
Crosstalk | -78 dB |
Amplifier protection | Thermal: Output limiter (Restored automatically) → Output mute (Restored automatically); Over current: Output mute (Restored automatically); Over voltage: Output limiter (Restored automatically); Integrated Power Limit: Output limiter (Restored automatically) |
Power supply protection | Thermal: Output limiter (Restored automatically) → Power supply shutdown; Over voltage: Power supply shutdown; Over current: Power supply shutdown |
Amplifier class | Class D, Balanced output circuit (BTL) |
Cooling | 16 step variable speed fan x 2, front to rear airflow |
Power requirements | Depending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage. |
Power consumption | 280W (1/8 MAX power, 4Ω, Pink noise at all channels), 60W (4Ω, Idling) |
Dimensions W / H / D | 480mm (18-7/8") / 88mm (3-7/16"): 2U / 388mm (15-2/8") |
Net weight | 7.2 kg (15.87 lbs) |
Accessories | USB cover, Owner's Manual, Specification sheet, AC cable (2.0m) x 1 |
Others | Operating Temperature: 0°C to +40°C, Storage temperature: -20°C to +60°C |
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