ION Audio iPTUSB Portable USB Turntable with Software and Built-in Speaker Immediately

Fluttery uneven speed is a fatal flaw.

If you listen to music without any perfectly "constant tones", like rap (with no melody), there's nothing wrong with this turntable.

Otherwise, especially when you hear a piano or an orchestra, I'm annoyed by the flutter in the speed - a rapid repeating speedup-and-slowdown, real fast, maybe 10 times a second, that makes the music "flutter", like when you talk to yourself in front of the spinning blades of a fan. Subtle, but it's DEFINITELY there, and very annoying.

I get around this problem by putting a MASSIVE thick 12-inch clay Victrola record from the 1920's on the turntable, underneath the record I'm playing. That acts as a "flywheel" to add weight and mass to the turntable, and even out the speed, eliminating the flutter. You can stack a couple heavier-weight LPs under your record. (Or, if you're using this to play Victrola records - problem solved right there.)

Then the turntable sounds OK.

But when I turn up the volume, on the loud parts, the amp tries to drive itself harder than it's capable of, and "sucks power" away from the turntable motor, and the speed slows down in the loud parts of the music. That REALLY SUCKS when the orchestra swells then the pitch goes flat.

So, if you DON'T PLAY IT LOUD (connect it to an external amp if you want it loud, don't try to use the internal speaker), and you PUT A COUPLE HEAVY RECORDS ON THE TURNTABLE underneath the one you're playing to even out the flutter, it's fine.

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