
Specifications
Dimensions
Dimensions (WxHxD)
18-7/8 x 3-7/16 (2U) x 15-2/8 inches (480 x 88 x 388mm)
Weight
Net Weight
15.21 lbs (6.9 kg)
Electrical
Maximum Input Voltage
+24dBu
Output Voltage Protection
Over voltage limiter, user configurable by wattage and speaker preset
Over Current
Output mute (Restored automatically)
Over Voltage
Output limiter (Restored automatically)
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
230W (1/8 MAX power, 4Ω, Pink noise at all channels), 55W (4Ω, Idling)
Audio
Total Harmonic Distortion
0.1% (1kHz, 10W), 0.3% (1kHz, Half power)
Frequency Response
±1.0dB (1W, 8Ω, 20Hz to 20kHz)
Crosstalk
Less than -60dB (Half Power, 8Ω, 1kHz, Vol max input 150Ω shunt)
Input Impedance
20kΩ (Balance), 10kΩ (Unbalance)
Connectivity
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
Construction
Amplifier Class
Class D, Balanced output circuit (BTL)
Environmental
Operating Temperature
0°C to +40°C
Storage Temperature
-20°C to +60°C
General
8Ω
500Wx2
4Ω
800Wx2
2Ω
500Wx2
8Ω/Power Boost Mode
800Wx1
4Ω/Power Boost Mode
1200Wx1
Sampling Frequency Rate (Internal)
48kHz
A/D D/A Converters
AD/DA: 24-bit linear, 128 times over sampling
S/N Ratio
100dB (A-weighted, 8Ω, Gain setting = +14dBu)
8Ω Volume Max
32.0dB/+6.3dBu (Gain setting: 32dB), 26.0dB/+12.3dBu (Gain setting: 26dB), 34.3dB/+4dBu (Gain setting: +4dBu), 24.3dB/+14dBu (Gain setting: +14dBu)
8Ω Volume Max /Power Boost Mode
34.0dB/+6.3dBu (Gain setting: 32dB), 28.0dB/+12.3dBu (Gain setting: 26dB), 36.3dB/+4dBu (Gain setting: +4dBu), 26.3dB/+14dBu (Gain setting: +14dBu)
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)
Presets
8 user amplifier presets (Factory preset: Speaker presets for Yamaha passive speakers)
POWER Switch on/off
Output mute
DC-fault
Power Supply shutdown (NOT restored automatically)
Thermal
Output limiter (Restored automatically) → Output mute (Restored automatically)
Integrated Power Limit
Output limiter (Restored automatically)
Cooling
16 step variable speed fan x 2, front to rear airflow
Audio Performance
Latency
1.5 msec (Analog Input to Speakers)
Why Choose SoundPro?
Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.