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PPI PC2350 Refurbishment

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Hey guys,

Recently got into messing around with my 2350. Basic facts to start out:
  • Had multiple PPI serial numbers, must have been sent back to PPI to be repaired a couple times
  • Broke the warranty seal to open her up for these pictures
  • Pulling just over 3 amps idle
  • Still gives off whine when rca leads are disconnected

She gives off a high pitched noise at idle and also when the bass hits.

At the 3 minute mark there is a rattle from the other amp I have attached to the box.

My quick research is leading me to think it is capacitor whine, but let me know what you guys think.

[YOUTUBE]2350 - YouTube[/YOUTUBE]

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