Yamaha PX5
Dual-Channel Lightweight Class-D Amplifier


The Yamaha PX5 versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments. 500W x 2 at 8 Ohms / 800W x 2 at 4 Ohms.

Yamaha PX5 Includes:

  • USB cover
  • Owner's Manual
  • Specification sheet
  • AC cable (2.0m)

Yamaha PX5 Features:

  • 2x 500W at 8 Ohms
  • 2x 800W at 4 Ohms
  • 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

Yamaha PX5 Specifications:

  • Sampling frequency rate: 48 kHz
  • A/D D/A Converters: AD/DA: 24-bit linear, 128 times over sampling
  • Total harmonic distortion: 0.1% (1 kHz, 10W), 0.3% (1 kHz, Half power)
  • Frequency response: ±1.0 dB (1W, 8 Ohms, 20 Hz to 20 kHz)
  • S/N ratio: 101 dB (A-weighted, 8 Ohms, Gain setting = +14 dBu)
  • Crosstalk: Less than -60 dB (Half Power, 8 Ohms, 1kHz, Vol max input 150 Ohm shunt)
  • Voltage Gain/Sensitivity: 
    • 8O Volume max: 32.0 dB/+9.3 dBu (Gain setting: 32 dB), 26.0 dB/+15.3 dBu (Gain setting: 26 dB), 37.3 dB/+4 dBu (Gain setting: +4 dBu), 27.3 dB/+14 dBu (Gain setting: +14 dBu)
    • 8O Volume max /Power Boost mode: 35.0 dB/+4.1 dBu (Gain setting: 32 dB), 29.0 dB/+10.1 dBu (Gain setting: 26 dB), 35.1 dB/+4 dBu (Gain setting: +4 dBu), 25.1dB/+14 dBu (Gain setting: +14 dBu)
  • Maximum input voltage: +24 dBu
  • Input impedance: 20 kOhms (Balance), 10 kOhms (Unbalance)
  • I/O Connectors: 
    • Speaker output ports: Neutrik speak ON 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
  • 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 20 Hz~20 kHz with polarity control); Speaker Processor (6-band PEQ + Limiter + Delay)
  • Latency: 1.5 msec (Analog Input to Speakers)
  • Presets: 8 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 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: 310W (1/8 MAX power, 4 Ohms, Pink noise at all channels), 60W (4 Ohms, Idling)
  • Dimensions (W x H x D): 18-7/8" x 3-7/16" x 15-2/8" (480 x 88 x 388mm)
  • Net weight: 15.21 lbs. (6.9 kg)
  • Environment:
    • Operating Temperature: 0° C to +40° C
    • Storage temperature: -20° C to +60° C
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