YAMPX3 - Yamaha PX3 Class D Power Amp 2x500W @ 4ohm with On Board DSP 2U Image 1

YAMPX3 - Yamaha PX3 Class D Power Amp 2x500W @ 4ohm with On Board DSP 2U Image 2

The versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the requirements of a vast range of sound reinforcement environments. 300W x 2 at 8Ω / 500W x 2 at 4Ω.

Product Features

2x 300W at 8Ω
2x 500W at 4Ω
Newly developed Class-D amplifier engine with a custom LSI
Flexible onboard PEQ, crossover, filters, delay, and limiter functions
Yamaha Speaker presets
Utlities for safe and secure operation

Product Specifications

General

Internal Sampling Frequency Rate: 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

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