Overview： This audio amplifier board employs IR's High Voltage, high performance class D audio amplifier driver IRS2092SPBF and 200V Single N-Channel HEXFET Power MOSFET IRFB4227.
This amplifier board supports stereo amplification by using two channel half bridge topology.
By means of dedicated heatsink design with temperature controlled fan，it is capable of delivering dual channel maximum power 750W RMS @ 4ohm simultaneously without extraordinary heatsink.
Besides of built-in chip protection, ESD and spike protection components used throughout input and output of the amplifier board ensure its robustness and reliability.
Features:
Output Power
750W@4ohm ±72V DC THD+N 10%
590W@4ohm ±72V DC THD+N 1%
Size:6inchX9inchX2.5inch
Weight:1414g/3.12 lbs (±10%)
4-screw Easy Installation
Optimized Heatsink Design
·Full Protection
·Power and Clip Indicator
Applications:
Electrical Specification:Specifications typical @ +25℃, Powered by ±72V DC, unless otherwise noted. Specifications
subjet to change without notice.
Parameter | Conditions | Min. | Typ. | Max. | Units |
Power Supply | - | ±55 | ±72 | ±75 | VDC |
Idle Power | SD Floating,FAN ON | - | 7.5 | 10 | W |
SD Floating,FAN OFF | - | 6 | 8 | W |
Standby Power | SD Connected to GND,FAN OFF | - | 1.2 | 4 | W |
Maximum Current | 1500W @4Ohm | - | 22.6 | - | A |
Efficiency | 750W @4Ohm | 90 | - | 95 | % |
Minimum Load Impedance | - | - | 3 | - | Ω |
Switching Frequency | SD Floating | - | 402 | - | KHz |
Under Voltage Protection | - | - | ±50 | - | V |
Over Voltage Protection | - | - | ±80 | - | V |
Over Temperature Protection | - | - | 100 | - | ℃ |
Fan Active @ Temperature | - | - | 55 | - | ℃ |
Audio Specification:Specifications typical @ +25℃, Powered by ±72V DC, unless otherwise noted. Specifications
subject to change without notice.
Parameter | Conditions | Min. | Typ. | Max. | Units |
Gain | - | 29 | 31 | 33 | dB |
Input Sensitivity(RMS) | @4Ω, 750W,1KHz | - | 1.78 | - | V |
Input Impedance | - | - | 3.3 | - | KΩ |
Output Power | @4Ω THD+N 1% | - | 590 | - | W |
@4Ω THD+N 10% | - | 750 | - | W |
Bandwidth @ ±3dB | @4Ω | 20 | - | 20K | Hz |
THD | @4Ω, 1W, 1KHz | - | 0.032 | - | % |
@4Ω, 10W, 1KHz | - | 0.093 | - | % |
Output Noise Level | A-weighting,Input Connected to GND | - | 277 | - | µV |
SNR | 590W @4Ω THD+N 1% | - | 99 | - | dB |
Typical Performance Graphs:
Frequency response:
Noise Floor:
THD+N VS Frequency:
Thermal Image:
All parameters were tested with Rohde & Schwarz UPV audio analyzer and AP AUX0025 filter with AES17 filter enabled.
Connections:
