The following is the recommended power adapter for the SY-300.
BOSS - PSA Series | Power Adaptor
Caution:
- The use of any other power adapter may cause malfunction and/or damage to the product.
- The current draw of the SY-300 is 400 mA. Please use the PSA-S series power supply with an output current of 500 mA.
Photo: PSA-100S
DC IN jack on the rear panel