Yamaha CA - Professional Audio PX3 Versatile power amplifier. 300W x 2 at 8 ohms. 500W x 2 at 4 ohms.

PX10PX8PX5PX3100V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8Ω1000W x 2800W x 2500W x 2300W x 24Ω1200W x 21050W x 2800W x 2500W x 22Ω700W x 2600W x 2500W x 2300W x 28Ω/Power Boost Mode--800W x 1600W x 14Ω/Power Boost Mode--1200W x 11000W x 1120V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8Ω1000W x 2800W x 2500W x 2300W x 24Ω1200W x 21050W x 2800W x 2500W x 22Ω700W x 2600W x 2500W x 2300W x 28Ω/Power Boost Mode--800W x 1600W x 14Ω/Power Boost Mode--1400W x 11000W x 1220V-240V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8Ω1000W x 2800W x 2500W x 2300W x 24Ω1200W x 21050W x 2800W x 2500W x 22Ω700W x 2600W x 2500W x 2300W x 28Ω/Power Boost Mode--800W x 1600W x 14Ω/Power Boost Mode--1400W x 11000W x 1General specificationsSampling frequency rateInternal48kHz48kHz48kHz48kHzA/D D/A ConvertersAD/DA: 24-bit linear, 128 times over samplingAD/DA: 24-bit linear, 128 times over samplingAD/DA: 24-bit linear, 128 times over samplingAD/DA: 24-bit linear, 128 times over samplingTotal harmonic distortion0.1% (1kHz, 10W), 0.3% (1kHz, Half power)0.1% (1kHz, 10W), 0.3% (1kHz, Half power)0.1% (1kHz, 10W), 0.3% (1kHz, Half power)0.1% (1kHz, 10W), 0.3% (1kHz, Half power)Frequency response±1.0dB (1W, 8Ω, 20Hz to 20kHz)±1.0dB (1W, 8Ω, 20Hz to 20kHz)±1.0dB (1W, 8Ω, 20Hz to 20kHz)±1.0dB (1W, 8Ω, 20Hz to 20kHz)S/N ratio101dB (A-weighted, 8Ω, Gain setting = +14dBu)101dB (A-weighted, 8Ω, Gain setting = +14dBu)100dB (A-weighted, 8Ω, Gain setting = +14dBu)100dB (A-weighted, 8Ω, Gain setting = +14dBu)CrosstalkLess than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)Less than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)Less than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)Less than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)Voltage Gain/Sensitivity8Ω Volume max32.0dB/+9.3dBu (Gain setting: 32dB), 26.0dB/+15.3dBu (Gain setting: 26dB), 37.3dB/+4dBu (Gain setting: +4dBu), 27.3dB/+14dBu (Gain setting: +14dBu)32.0dB/+8.3dBu (Gain setting: 32dB), 26.0dB/+14.3dBu (Gain setting: 26dB), 36.3dB/+4dBu (Gain setting: +4dBu), 26.3dB/+14dBu (Gain setting: +14dBu)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)32.0dB/+4.1dBu (Gain setting: 32dB), 26.0dB/+10.1dBu (Gain setting: 26dB), 32.1dB/+4dBu (Gain setting: +4dBu), 22.1dB/+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)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+24dBu+24dBu+24dBuInput impedance20kΩ (Balance), 10kΩ (Unbalance)20kΩ (Balance), 10kΩ (Unbalance)20kΩ (Balance), 10kΩ (Unbalance)20kΩ (Balance), 10kΩ (Unbalance)I/O ConnectorsSpeaker output portsNeutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2Neutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2Neutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2Neutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2Line InputXLR-3-31 x2, 1/4 "PHONE(TRS) x2XLR-3-31 x2, 1/4 "PHONE(TRS) x2XLR-3-31 x2, 1/4 "PHONE(TRS) x2XLR-3-31 x2, 1/4 "PHONE(TRS) x2OthersUSB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clampUSB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clampUSB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clampUSB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clampIndicatorsPOWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off featurePOWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off featurePOWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off featurePOWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off featureProcessorsInput 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)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)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)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)Latency1.5 msec (Analog Input to Speakers)1.5 msec (Analog Input to Speakers)1.5 msec (Analog Input to Speakers)1.5 msec (Analog Input to Speakers)Presets8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)Protection circuitLoad protectionPOWER 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)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)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)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 protectionThermal: 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)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)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)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 protectionThermal: Output limiter (Restored automatically) → Power supply shutdown; Over voltage: Power supply shutdown; Over current: Power supply shutdownThermal: Output limiter (Restored automatically) → Power supply shutdown; Over voltage: Power supply shutdown; Over current: Power supply shutdownThermal: Output limiter (Restored automatically) → Power supply shutdown; Over voltage: Power supply shutdown; Over current: Power supply shutdownThermal: Output limiter (Restored automatically) → Power supply shutdown; Over voltage: Power supply shutdown; Over current: Power supply shutdownAmplifier classClass D, Balanced output circuit (BTL)Class D, Balanced output circuit (BTL)Class D, Balanced output circuit (BTL)Class D, Balanced output circuit (BTL)Cooling16 step variable speed fan x 2, front to rear airflow16 step variable speed fan x 2, front to rear airflow16 step variable speed fan x 2, front to rear airflow16 step variable speed fan x 2, front to rear airflowPower requirementsDepending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage.Depending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage.Depending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage.Depending on area of purchase; 100V 50Hz/60Hz, 120V 60Hz, 220V-240V 50Hz/60Hz *Verified as operating at rated power voltage +/- 10% voltage.Power consumption310W (1/8 MAX power, 4Ω, Pink noise at all channels), 60W (4Ω, Idling)280W (1/8 MAX power, 4Ω, Pink noise at all channels), 60W (4Ω, Idling)230W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling)160W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling)DimensionsW480mm (18-7/8")480mm (18-7/8")480mm (18-7/8")480mm (18-7/8")H88mm (3-7/16"): 2U88mm (3-7/16"): 2U88mm (3-7/16"): 2U88mm (3-7/16"): 2UD388mm (15-2/8")388mm (15-2/8")388mm (15-2/8")388mm (15-2/8")Net weight7.4 kg (16.31 lbs)7.2 kg (15.87 lbs)6.9 kg (15.21 lbs)6.9 kg (15.21 lbs)AccessoriesUSB cover, Owner's Manual, Specification sheet, AC cable (2.0m) x 1USB cover, Owner's Manual, Specification sheet, AC cable (2.0m) x 1USB cover, Owner's Manual, Specification sheet, AC cable (2.0m) x 1USB cover, Owner's Manual, Specification sheet, AC cable (2.0m) x 1OthersOperating Temperature: 0°C to +40°C, Storage temperature: -20°C to +60°COperating Temperature: 0°C to +40°C, Storage temperature: -20°C to +60°COperating Temperature: 0°C to +40°C, Storage temperature: -20°C to +60°COperating Temperature: 0°C to +40°C, Storage temperature: -20°C to +60°C