12 Bit Magic...?

So my MPC 500 seems to have some unique characteristics, and it has its flaws, the midi input seems to be shit, but I've noticed that occasionally when I'm in the record screen, going to in from recording a sample that the bit rate changes on its own. Now I've never owned a 12 bit machine myself, but have used the 12 bit reduction on the MPC 1000, and this sounds similar. The Hi frequencies sound a bit brighter, and the lows a bit crunchier. Anyone else experience this. I have some examples in my archives I'll look for later and post, so you can all hear what I'm talking about, if your interested, I'll post these later.

I'll be interested. Sounds like a loose cable though.

Here's an example of what I mean the same drumbeat sampled twice

normal
http://www.mediafire.com/?uu35mkbj5zp8j10

12bit?
http://www.mediafire.com/?bz74affp4z9q36e

Hmm that's weird, the sample rate is definitely lower on the "12 bit one" and it sounds like the noise floor is higher as well... You can hear it on those claps pretty clearly. Granted I'm on my iPad, but I can still hear a difference plain as day.

Yea its a bit strange, it happens on the regular, randomly. Thanks for listening, here's another example.

http://www.mediafire.com/?51gm928l6wxq44g

http://www.mediafire.com/?d5lj5ls3xcsny1r

yeah, the same thing happens with my mpc500 too, randomly.

Did you buy your 500 used? I sold my 500, and have since bought another which occasionally does the same but not so often or as noticeable.

I'm a new user of the MPC500, but I would suggest checking the FX part (mode 9 > effect)

Sometimes Fxs get stuck on the pads (pad numbers) of different tracks if they are not turned off. The FX thru FX 2 function could be as well.