The Yamaha PX5 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. 500W x 2 at 8 Ohms / 800W x 2 at 4 Ohms.Yamaha PX5 Includes:USB coverOwner's ManualSpecification sheetAC cable (2.0m)Yamaha PX5 Features:2x 500W at 8 Ohms2x 800W at 4 OhmsClass-D amplifier engine with a custom LSIFlexible onboard PEQ, crossover, filters, delay, and limiter functionsYamaha Speaker presetsUtlities for safe and secure operationYamaha PX5 Specifications:Sampling frequency rate: 48 kHzA/D D/A Converters: AD/DA: 24-bit linear, 128 times over samplingTotal harmonic distortion: 0.1% (1 kHz, 10W), 0.3% (1 kHz, Half power)Frequency response: ±1.0 dB (1W, 8 Ohms, 20 Hz to 20 kHz)S/N ratio: 101 dB (A-weighted, 8 Ohms, Gain setting = +14 dBu)Crosstalk: Less than -60 dB (Half Power, 8 Ohms, 1kHz, Vol max input 150 Ohm shunt)Voltage Gain/Sensitivity:8O Volume max: 32.0 dB/+9.3 dBu (Gain setting: 32 dB), 26.0 dB/+15.3 dBu (Gain setting: 26 dB), 37.3 dB/+4 dBu (Gain setting: +4 dBu), 27.3 dB/+14 dBu (Gain setting: +14 dBu)8O Volume max /Power Boost mode: 35.0 dB/+4.1 dBu (Gain setting: 32 dB), 29.0 dB/+10.1 dBu (Gain setting: 26 dB), 35.1 dB/+4 dBu (Gain setting: +4 dBu), 25.1dB/+14 dBu (Gain setting: +14 dBu)Maximum input voltage: +24 dBuInput impedance: 20 kOhms (Balance), 10 kOhms (Unbalance)I/O Connectors:Speaker output ports: Neutrik speak ON 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 20 Hz~20 kHz 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 shutdownAmplifier class: Class D, Balanced output circuit (BTL)Cooling: 16 step variable speed fan x 2, front to rear airflowPower
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