IRCore350M ±60V 350W 4Ω Audiophile Class-D Amplifier, OPA1656 Buffer
Designed to get a premium sounding class-d amplifier while providing a large headroom for dynamic music.
Low dropout, low quiescent ±5V regulator ICs were used on the class-d chip's analog supply. Using a good voltage regulator IC in the analog supply section of IRS2092 directly improves the overall sound.
Uses Infineon OptiMos(TM) 3 for the output mosfets. This newer technology mosfets can produce double the output current at 4 ohms load compared with the original reference design with no performance penalty.
Flat wirewound copper, low loss output inductor is used which improves the THD performance and sound of this amplifier module.
The heatsink mounting is designed such that the mosfets can be easily attached to a wide variety of heatsinks that are available in the market.
1 pc assembled and tested mono module, without main heatsink.
Instruction manual via email
Recommended Supply Voltage: ±45V to ±60V DC
Output Power (< 1% THD): 180W @ 8Ω
Output Power (< 1% THD): 350W @ 4Ω
THD+N: less than 0.05% at 350W 4Ω
Voltage gain: 28
Input sensitivity: 1.8V RMS
Input impedance: 10K Ω
Load impedance: 4Ω or 8Ω
Idle dissipation: ~5W at ± 60V DC
PCB area: 114mm x 85mm
Overcurrent /short protection: Yes
Speaker Protection: No
Over/under voltage protection: No
Overheat protection: No
Input Opamp: OPA1656
Main Chip: IRS2092S
DIY stereo amplifier
Retrofitting old amplifiers
Karaoke / Videoke / Jukebox systems
Recommended Power Supply (not included)
Split 45V to 60V DC (500W per channel)
Minimum of 6800uF, 80V/100V capacitor per rail
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