Yamaha PX5 Dual Channel Power Amplifier

Since the 1976 release of the P2200, Yamaha's 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.

Yamaha PX5 Features

• 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

• PX5 Dual Channel Power Amplifier1
• USB cover1
• Owner's Manual1
• Specification sheet1
• AC cable (2.0m)1

• 100V models (Output power; 1kHz Non-clip 20msec Burst Both channels driven)
  • 8Ω: 500Wx2
  • 4Ω: 800Wx2
  • 2Ω: 500Wx2
  • 8Ω/Power Boost Mode: 800Wx1
  • 4Ω/Power Boost Mode:1200Wx1
• 120V models (Output power; 1kHz Non-clip 20msec Burst Both channels driven
  • 8Ω: 500Wx2
  • 4Ω: 800Wx2
  • 2Ω: 500Wx2
  • 8Ω/Power Boost Mode: 800Wx1
  • 4Ω/Power Boost Mode:1400Wx1
• 220V-240V models (Output power; 1kHz Non-clip 20msec Burst Both channels driven)
  • 8Ω: 500Wx2
  • 4Ω: 800Wx2
  • 2Ω: 500Wx2
  • 8Ω/Power Boost Mode: 800Wx1
  • 4Ω/Power Boost Mode:1400Wx1
• Sampling frequency rate (Internal)48kHz
• A/D D/A ConvertersAD/DA: 24-bit linear, 128 times over sampling
• Total harmonic distortion0.1% (1kHz, 10W), 0.3% (1kHz, Half power)
• Frequency response±1.0dB (1W, 8Ω, 20Hz to 20kHz)
• S/N Ratio100dB (A-weighted, 8Ω, Gain setting = +14dBu)
• CrosstalkLess than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)
• Voltage Gain/Sensitivity
  • 8Ω Volume max: 32.0dB/+6.3dBu (Gain setting: 32dB), 26.0dB/+12.3dBu (Gain setting: 26dB), 34.3dB/+4dBu (Gain setting: +4dBu), 24.3dB/+14dBu (Gain setting: +14dBu)
  • 8Ω Volume max /Power Boost mode: 34.0dB/+6.3dBu (Gain setting: 32dB), 28.0dB/+12.3dBu (Gain setting: 26dB), 36.3dB/+4dBu (Gain setting: +4dBu), 26.3dB/+14dBu (Gain setting: +14dBu)
• Maximum input voltage+24dBu
• Input impedance20kΩ (Balance), 10kΩ (Unbalance)
• I/O Connectors
  • 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
  • Others: USB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clamp
• IndicatorsPOWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off feature
• ProcessorsInput 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)
• Latency1.5 msec (Analog Input to Speakers)
• Presets8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)
• Protection circuit
  • 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)
  • 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 classClass D, Balanced output circuit (BTL)
• Cooling16 step variable speed fan x 2, front to rear airflow
• Power requirementsDepending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage.
• Power consumption230W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling)
• Dimensions (WxHxD)18-7/8 x 3-7/16 (2U) x 15-2/8 inches (480 x 88 x 388mm)
• Net weight15.21 lbs (6.9 kg)
• Operating Temperature 0°C to +40°C
• Storage Temperature-20°C to +60°C