| PX8 |
| 100V models |
| Output power; 1kHz Non-clip 20msec Burst Both channels driven |
8Ω |
800W x 2 |
| 4Ω |
1050W x 2 |
| 2Ω |
600W x 2 |
| 8Ω/Power Boost Mode |
- |
| 4Ω/Power Boost Mode |
- |
| 120V models |
| Output power; 1kHz Non-clip 20msec Burst Both channels driven |
8Ω |
800W x 2 |
| 4Ω |
1050W x 2 |
| 2Ω |
600W x 2 |
| 8Ω/Power Boost Mode |
- |
| 4Ω/Power Boost Mode |
- |
| 220V-240V models |
| Output power; 1kHz Non-clip 20msec Burst Both channels driven |
8Ω |
800W x 2 |
| 4Ω |
1050W x 2 |
| 2Ω |
600W x 2 |
| 8Ω/Power Boost Mode |
- |
| 4Ω/Power Boost Mode |
- |
| General specifications |
| 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 |
101dB (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/+9.3dBu (Gain setting: 32dB), 26.0dB/+15.3dBu (Gain setting: 26dB), 37.3dB/+4dBu (Gain setting: +4dBu), 27.3dB/+14dBu (Gain setting: +14dBu) |
| 8Ω Volume max /Power Boost mode |
- |
| Maximum input voltage |
+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) |
| 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 |
280W (1/8 MAX power, 4Ω, Pink noise at all channels), 60W (4Ω, Idling) |
| Dimensions |
W |
480mm (18-7/8") |
| H |
88mm (3-7/16"): 2U |
| D |
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 |