| 
				PX3 | 
		
		
			| 
				100V models | 
		
		
			| 
				Output power; 1kHz Non-clip 20msec Burst Both channels driven | 
			
				8Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				4Ω | 
			
				500W x 2 | 
		
		
			| 
				  | 
			
				2Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				8Ω/Power Boost Mode | 
			
				600W x 1 | 
		
		
			| 
				  | 
			
				4Ω/Power Boost Mode | 
			
				1000W x 1 | 
		
		
			| 
				120V models | 
		
		
			| 
				Output power; 1kHz Non-clip 20msec Burst Both channels driven | 
			
				8Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				4Ω | 
			
				500W x 2 | 
		
		
			| 
				  | 
			
				2Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				8Ω/Power Boost Mode | 
			
				600W x 1 | 
		
		
			| 
				  | 
			
				4Ω/Power Boost Mode | 
			
				1000W x 1 | 
		
		
			| 
				220V-240V models | 
		
		
			| 
				Output power; 1kHz Non-clip 20msec Burst Both channels driven | 
			
				8Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				4Ω | 
			
				500W x 2 | 
		
		
			| 
				  | 
			
				2Ω | 
			
				300W x 2 | 
		
		
			| 
				  | 
			
				8Ω/Power Boost Mode | 
			
				600W x 1 | 
		
		
			| 
				  | 
			
				4Ω/Power Boost Mode | 
			
				1000W x 1 | 
		
		
			| 
				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 | 
			
				100dB (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/+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 | 
			
				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 | 
		
		
			| 
				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 | 
			
				160W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling) | 
		
		
			| 
				Dimensions | 
			
				W | 
			
				480mm (18-7/8') | 
		
		
			| 
				  | 
			
				H | 
			
				88mm (3-7/16'): 2U | 
		
		
			| 
				  | 
			
				D | 
			
				388mm (15-2/8') | 
		
		
			| 
				Net weight | 
			
				6.9 kg (15.21 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 |