The Yamaha PX3 versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the... morerequirements of a vast range of sound reinforcement environments. 1000W x 2 at 8 Ohms / 1200W x 2 at 4 Ohms.Yamaha PX3 Includes:USB coverOwner's ManualSpecification sheetAC cable (2.0m)Yamaha PX3 Features:2x 1200W at 4ONewly developed Class-D amplifier engine with acustom LSIFlexible onboard PEQ, crossover, filters, delay, andlimiter functionsYamaha Speaker presetsUtlities for safe and secure operationYamaha PX3 Specifications:Sampling frequency rate: 48kHzA/D D/A Converters: AD/DA: 24-bit linear, 128 timesover samplingTotal harmonic distortion: 0.1% (1kHz, 10W), 0.3%(1kHz, Half power)Frequency response: ±1.0dB (1W, 8O, 20Hz to 20kHz)S/N ratio: 101dB (A-weighted, 8O, Gain setting = +14dBu)Crosstalk: Less than -60dB (Half Power, 8 Ohms, 1kHz, Volmax input 150O shunt)Voltage Gain/Sensitivity:8 Ohm 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 Ohm 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: +24dBuInput impedance: 20 kOhms (Balance), 10 kOhms (Unbalance)I/O Connectors:Speaker 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 LEDoff featureProcessors: Input summing; D-CONTOUR(FOH/MAIN,MONITOR, OFF); Delay(0 - 74msec); HPF/LPF(cutoff frequency 20Hz~20kHz withpolarity 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 shutdownAmplifier class: Class D, Balanced output circuit(BTL)Cooling: 16 step variable speed fan x 2, front torear airflowPower requirements: Depending on area of purchase;100V 50Hz/60Hz, 120V 60Hz, 220V-240V
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