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