Yamaha PX8 1050 Watts x 2 at 4 Ohms Power Amplifier

• Sampling frequency rate: 48kHz
• A/D D/A Converters: AD/DA: 24-bit linear, 128 times over sampling
• Total harmonic distortion: 0.1% (1kHz, 10W), 0.3%(1kHz, Half power)
• Frequency response: ±1.0dB (1W, 8 Ohms, 20Hz to 20kHz)
• S/N ratio: 101dB (A-weighted, 8 Ohms, Gain setting =+14dBu)
• Crosstalk: Less than -60dB (Half Power, 8 Ohms, 1kHz, Vol max input 150 Ohms shunt)
• Voltage Gain/Sensitivity:
  • 8 Ohms Volume max: 32.0dB/+9.3dBu (Gain setting: 32dB), 26.0dB/+15.3dBu (Gain setting: 26dB), 37.3dB/+4dBu (Gain setting: +4dBu), 27.3dB/+14dBu (Gain setting: +14dBu)
  • 8 Ohms Volume max /Power Boost mode: 35.0dB/+4.1dBu (Gain setting: 32dB), 29.0dB/+10.1dBu (Gain setting: 26dB), 35.1dB/+4dBu (Gain setting: +4dBu), 25.1dB/+14dBu (Gain setting: +14dBu)
• Maximum input voltage: +24dBu
• Input impedance: 20k Ohms (Balanced), 10k Ohms (Unbalanced)
• 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
• Indicators: POWER x1 (Green), ALERT x1 (Red), USB x1(Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LEDoff 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)
• 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 rearairflow
• 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 (4O, Idling)
• Dimensions (WxHxD): 18-7/8" x 3-7/16" x 15-2/8" (480 x88 x 388mm)
• Net weight: 15.87 lbs (7.2 kg)

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