Don't be fooled by the PSR-550's tweeters! The tweeters in the 550 are strictly cosmetic, and DO NOT function. I've owned the PSR-540 and currently own the PSR-550. The tweeters do not work in either model. I even emailed a tech several times on that issue and to date NEVER got a response on it. Shame on Yammie for that one! That new Roland might be something to check out too.. However I'm not sure if you can record user styles with it though.

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.