Yamaha PX3 2X 300W Power Amplifier
Description
PX series models are driven by a newly developed Class-D amplifier engine that concentrates all the necessary functions into a single custom LSI chip, and uses PLL technology to control transfer characteristics in real time, achieving impressive sound quality and power. This new single-chip architecture offers higher output and improved performance in a more lightweight, yet reliable design. A combination of cutting-edge technology and an exhaustive component selection process make PX Series amplifiers supremely efficient amplifiers with low noise, reliable protection features, and above all, outstanding sound quality.
DSP for audio processing - Input Routing & Output Routing
Amp Mode allows user to configure the system without any difficulty by selecting the input routing and output routing. Totally 15 types of pattern can be selected.
- Input routing (Dual/Parallel/Single/SUM)
- Speaker System Structure FULL+FULLSUB+SUBFULL+SUBBi-AmpBoost FullBoost Sub
Sophisticated Signal Processing
PX series models come with flexible onboard PEQ, crossover, filters, delay, and limiter functions as standard, allowing quick and easy system setup via the LCD display, without the need for any additional outboard gear. All models also feature Yamaha’s intelligent D-CONTOUR multi-band dynamic processing, allowing users to achieve consistent clarity and high-quality sound at any output level by tailoring the frequency response of each connected speaker for either front-of-house or monitor configurations.
| 220V-240V models | PX3 | |
|---|---|---|
| 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 | PX3 | |
| 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 | 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 | |
