| Brand | Unbranded |
|---|---|
| Type | DIY Amplifier Kit |
| Compatible Brand | Universal |
Check the listing for details. DC 5-15V AD828 Stereo Preamp Power Amplifier Board Preamplifier Module. Condition: New. Listed at 2.00 USD. The op amp uses a fever-grade AD828 patch. AD828 Microphone Preamplifier Board 1". If only one channel is used, the other channel needs to short-circuit the input to GND to avoid cross-signal interference.