The Yamaha PX3 Stereo Power Amplifier delivers 300W at 8 Ohms in a lightweight chassis and is suitable for a wide variety of sound-reinforcement applications. Part of the company's PX Series of power amplifiers, it features a Class-D engine with a single custom LSI chip, and uses PLL technology for higher efficiency and lower noise. The Power-Boost mode combines the power output from two channels into one, achieving significantly higher single-channel power levels (the number of channels available is then halved).
The on-board DSP functions include a PEQ, a delay, a crossover, and a limiter. They also allow for detailed configuration of parameters such as input & output routing, input sensitivity, amp gain, and speaker impedance. The D-Control multi-band dynamic processor delivers a clear and consistent sound at any output level by shaping the frequency response of each speaker for either front-of-house or monitor configurations.
The Configuration Wizard helps save time during setup by assigning optimized speaker settings that match your system configuration. It can be used in basic mode for quick setup or advanced mode for more precise control over DSP parameters. You can store up to eight presets, which can be saved to a USB drive for use with other amplifiers and setups.
For secure operation, the panel-locking function ensures that your settings remain safe. With its sturdy frame and carrying handle, the PX3 is built to withstand extended road use.
Class-D amplifier engine with single custom LSI chip and PLL technology
Power Boost Mode combines the power output from two channels into one
Configuration Wizard allows for configuration of the system by assigning optimized speaker settings which can be saved as presets
Digital routing of inputs & output (dual, parallel, single & SUM)
DSP functions include PEQ, crossover, filters, delay & limiter, accessed via an LCD display
D-Contour multi-band dynamic processing shapes the frequency response of speakers for specific applications
Basic mode for quick setup and Advanced mode for more precise control
Flexible connectivity with XLR & 1/4" TRS inputs and binding post, SpeakON & 1/4" TS outputs
Presets can be saved to USB drive for use with other amplifiers and setups
Panel-locking function to keep settings safe
Two 16-step variable-speed fans
Lightweight chassis
Power Amplifier
Number of Channels 2
Power Rating 8 Ohms:
300 W per Channel
600 W Bridged
4 Ohms:
500 W per Channel
1000 W Bridged
2 Ohms:
300 W per Channel
Amplifier Class Class-D
Performance
Frequency Response 20 Hz to 20 kHz ±1 dB (at 1 W, 8 Ohms)
Input Impedance 10 Kilohms (Unbalanced)
20 Kilohms (Balanced)
Max Gain 35.1 dB (at 8 Ohms)
Max Input Level +24 dBu
SNR 100 dB
THD+N 0.1% (1 kHz, at 10 W)
0.3% (1 kHz, at 1/2 Power)
Crosstalk <-60 dB
Signal Processing
Sample Rate 48 kHz
AD/DA Conversion A/D: 24-Bit, 128 x Over-Sampling
D/A: 24-Bit, 128 x Over-Sampling
Latency 1.5 ms
Audio Delay Adjustable Up to 74 ms
EQ 6-Band Parametric EQ
Filters High-Pass:
20 Hz to 20 kHz
Low-Pass:
20 Hz to 20 kHz
Limiting Yes
Connectivity
I/O 2 x XLR 3-Pin Input
2 x 1/4" TRS Input
2 x speakON NL4 Output
2 x Binding Post Pair Output
2 x 1/4" TS Output
USB 1 x USB Type-A (USB 2.0)
Power
AC Input Power 120 VAC, 60 Hz
Power Consumption 4 Ohms:
160 W (1/8 Power)
55 W (Idle)
Physical
Cooling 2 x Fan (Variable Speed)
Operating Temperature 32 to 104°F / 0 to 40°C
Storage Temperature -4 to 140°F / 0 to 40°C
Dimensions 18.9 x 3.5 x 15.2" / 480.0 x 88.0 x 387.4 mm
Weight 15.2 lb / 6.9 kg
Packaging Info
Package Weight 19.5 lb
Box Dimensions (LxWxH) 21.75 x 21.75 x 7.5"