4 Ohm 1050W Channel Power Amp with Onboard PEQ, Crossover, Filters, Delay, Limiter Functions

The 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. 800W x 2 at 8 ohms/1050W x 2 at 4 ohms.

Key Features

• 2x 800W at 8 ohms
• 2x 1050W at 4 ohms
• Newly developed 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

Technical Specifications

100V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8 ohms:800W x 24 ohms:1050W x 22 ohms:600W x 2120V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8 ohms:800W x 24 ohms:1050W x 22 ohms:600W x 2220V-240V modelsOutput power; 1kHz Non-clip 20msec Burst Both channels driven8 ohms:800W x 24 ohms:1050W x 22 ohms:600W x 2Sampling frequency rateInternal:48kHzA/D D/A Converters:AD/DA: 24-bit linear, 128 times over samplingTotal 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/Sensitivity8 ohms Volume max: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)Maximum input voltage:+24dBuInput impedance:20k ohms (Balance), 10k ohms (Unbalance)I/O ConnectorsSpeaker output ports:Neutrik speakON NL4 x2, Binding post x2 pairs, 1/4" PHONE(TS) x2Line Input:XLR-3-31 x2, 1/4 "PHONE(TRS) x2Others:USB 2.0 Standard-A Connector (Female) for Save/Load, Speaker preset update, Firmware update with USB memory; AC inlet x1 with AC cord clampIndicators:POWER x1 (Green), ALERT x1 (Red), USB x1 (Green), PROTECT x2 (Red), CLIP/LIMIT x2 (Red), SIGNAL x2 (Green); Auto LED off featureProcessors: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 circuitLoad 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 shutdownAmplifier class:Class D, Balanced output circuit (BTL)Cooling:16 step variable speed fan x 2, front to rear airflowPower 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, 4 ohms, Pink noise at all channels), 60W (4 ohms, Idling)Dimensions W x H x D:480mm (18-7/8") x 88mm (3-7/16"): 2U x 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 1Others:Operating Temperature: 0 Degrees Celcius to +40 Degrees Celcius, Storage temperature: -20 Degrees Celcius to +60 Degrees Celcius