Hi guys,was going to buy subwoofer for my yamaha psr sx600,but then I just remembered I had a new partybox 300 doing nothing in storage so I got to thinking that it might work with my yamaha I had it working with the keyboard within a few mins thought id mention this incase nobody thought about this it really sounds great so if anyone has one and has no subwoofer please try it because the partybox 300 has a subwoofer,hope this helps.
