Annoying Sibilance Problem


Ok so here's the scoop.

I've got a Grado Gold mounted on my Technics SL1200 and everything sounds wonderful, except on some recordings I get some pretty nasty distortion on hard T sounds and S sounds in vocals. It's not on every record but when it's there it's very apparent. I can't imagine the records are the problem as some of them are new, but I do not have another table/cart to test that right now.

The funny thing is if I swap the preamp over to mono the distortion is pretty much gone. Any ideas why it's doing this? Any help would be greatly appreciated.
silvergsx
I've tried adjusting the table to no avail. I'm starting to think it's the cart/stylus. I may bring the albums over to Goodwins and toss it on their table with the Goldfinger... That should tell me if it's the album or not.
Silvergsx,

Switching your preamp to mono may be helping in two ways:

1. Many preamp mono switches act as HF rolloff filters, so HF problems simply become less audible.

2. Summing to mono may prevent distortions resulting from L and R information that's at the same (high) frequencies but every so slightly out of synch or phase with each other.

It is VERY difficult for an amplification chain to cleanly reproduce two (or more) similar or identical waveforms that should be marching along as individuals, so to speak, without "glomming" them together into a distorted mess. The higher the frequencies and the greater the amplitudes, the tougher it is for the system to keep all the separate waveforms separate. Blending to mono before amplification begins greatly simplifies the job (and the music, naturally).

Your Grado is unquestionably part of the problem, but your amplification from phono stage to power amps may (or may not) also be contributing. Best guidance IMO is to try a more resolving cartridge first, to see how far it gets you and whether or not you like the new direction.
I was going to accuse the Grado as well based on past experience with older, lower cost models, but its been a while, so I decided no.

Wouldn't expect that with a more modern higher cost Grado though still. I have never heard that particular cart set up properly for certain so can't really say still.
What would you guys recommend for a more resolving cart? I'm going to be buying a p5 table this summer and love the idea of the 3 point mounting to assure it's aligned properly for the Rega carts, but the Apheta is out of my price range.

Would the Exact 2 or the Elys 2 be decent alternatives to the Grado?
Obviously the Grado isn't only the brand you can play with and experiment. Purchasing P5 might not solve the sibliance problem or even make it more revealed which none of us know for now.
Jaytea has the right point of steps you should go through to resolve. I'd only add to check stylus/cantilever wear.