Serious distortion from Rega RP1

Hi all,

Sorry for the delay and thanks for your responses. The catridge connections all appear very solid. Unfortunately I've only got the one phono stage, so I have no way of swapping it out.

Dougdeacon, here's a bit more info: The distortion is definitely in both channels. It's very noticeable, but it does come and go. It seems to appear during the same passages over and over when I play a record multiple times. Normally I would blame this on a damaged record, but this is happening even on new records that are played for the first time.

Thanks for all your help.

One more note: I know it's often the case that distortion is more common in loud passages due to grooved-out records or toward the end of an album due to cartridge misalignment. This distortion isn't related to volume or location of the stylus on the record.

Have you checked your VTF?

For the safety of your vinyl I'd also check VTF first. But if your noise is not correlated with music volume or inner grooves, that may not be the cause.

Sadly, even new records can have flawed vinyl due to errors during the pressing process. Such flaws sound alot like mistracking (FFZZZZT!) but are non-correlated with the music. They can happen anywhere on the record, though in truth they tend to affect the inner side of groovewalls more, which tends to produce L channel noise only.

It's beginning to sound like a loose or dirty connection somewhere. Try removing and cleaning each connection in your phono chain (cartridge clips, tonearm cable, phono stage, tubes, etc.)

If that doesn't help, a bad solder joint might be the culprit.

Lots of trouble shooting in your future... :-(

Hi all,

Well, I've established that the cartridge is perfectly aligned according to a Rega Baerwald protractor I found online. I have no way to test the phono stage at this point (no other turntable to use as a baseline), but my hunch is that someone took a duster to the stylus or caught it on a sweater - could this be the cause of serious distortion? I've also ordered a stylus gauge to get a sense of where VTF is, because I've been reading that Rega's "plug and play" version of a counterweight system is not as accurate as advertised. As you say above, if nothing else I want to protect the records.

I ordered a new cartridge (Soundsmith Otello) so I can try to isolate the problem. It's also a good excuse to upgrade, and the new cart will come with me when I graduate from the Rega RP1 ;)