Brand & Model # PX5
100V Models : 8Ω: 500W x 2
Output power; 1kHz Non-clip 20msec Burst Both channels driven 4Ω: 800W x 2
2Ω: 500W x 2
8Ω/Power Boost Mode: 800W x 1
4Ω/Power Boost Mode: 1200W x 1
120V Models : 8Ω: 500W x 2
Output power; 1kHz Non-clip 20msec Burst Both channels driven 4Ω: 800W x 2
2Ω: 500W x 2
8Ω/Power Boost Mode: 800W x 1
4Ω/Power Boost Mode: 1400W x 1
220V-240V Models : 8Ω: 500W x 2
Output power; 1kHz Non-clip 20msec Burst Both channels driven 4Ω: 800W x 2
2Ω: 500W x 2
8Ω/Power Boost Mode: 800W x 1
4Ω/Power Boost Mode: 1400W x 1
Sampling frequency rate Internal: 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, 8Ω, 20Hz to 20kHz)
S/N ratio 100dB (A-weighted, 8Ω, Gain setting = +14dBu)
Crosstalk Less 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 voltage input +24dBu
Input impedance 20kΩ (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
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)
Processors Speaker EQ (VXS:Full Range, VXC, VXS10S/ST), HPF (150Hz), LPF (150Hz, 200Hz)
Latency 1.5 msec (Analog Input to Speakers)
Presets 8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)
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 230W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling)
Dimensions W: 480mm (18-7/8″)
H: 88mm (3-7/16″): 2U
D: 388mm (15-2/8″)
Net weight 6.9 kg (15.21 lbs)