IRS2092S Mono Class-D Audio Amplifier Board
Build a mono amplifier stage around a suitable split-rail power supply. This IRS2092S-referenced Class-D board suits experienced electronics users matching a speaker load, supply and enclosure to a custom audio project.
- ✅ Create a dedicated mono channel — The board provides one amplifier stage for a matched audio layout.
- ✅ Choose your own system parts — A bare module integrates with suitable external supply and speaker components.
- ✅ Reduce switch-on output transients — The described speaker relay adds delayed connection at start-up.
- ✅ Plan a compact custom amplifier — The board format fits an appropriately engineered enclosure.
Use a Correctly Matched Split-Rail Supply
The specified board supply is ±45 V to ±70 V DC with three-wire split rails, not a single-ended source. Check the actual board markings and required auxiliary connections before assembly.
The stated 500 W reference applies at ±65 V into 4 ohms under the described conditions, not every load or supply. This is a high-energy component requiring suitable electrical protection, cooling and enclosure; no direct mains connection is established.
Technical details
- Type: mono Class-D amplifier board
- Chip reference: IRS2092S
- Main supply: ±45 to ±70 V DC split rail
- Output reference: 500 W at ±65 V into 4 ohms
- Input reference for stated output: 1 V RMS
- Speaker connection: relay with start-up delay described
- Package: amplifier board only
- Supply, enclosure and speaker: not included
Match the supply, load and protective assembly before adding this board to an audio build.
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