BA-330: Recommended Power Adapter May 25, 2023 03:43 Updated Follow The BA-330 uses the Roland PSB-13U power adapter. Related articles BA-330: What Speaker Stand Is Compatible? RD-500: Initializing the RD-500 - Restoring the Factory Settings BTY-NIMH/A Rechargeable Amp Power Pack: Compatible Amps BA-330: How to Connect Two BA-330s Together (Stereo Link) BA-330: What Kind of Batteries are Compatible?