30 ft rca run too long for a phono to preamp?

You can try a couple of things to isolate the table from vibration.

You could try a sandbox designed by Galibier Design and built by Timbernation. In my system, it worked very well.

You could also suspend the table from the ceiling on a platform hung with chain.

There are solutions that don't require 30 foot cable runs.

As for Timbernation buyer beware:

Timbernation and

Timbernation Too

Between spotty workmanship, long delays, and some people not receiving their items it should make one think twice about ordering. My own personal experience mirrors that of some of the posters in these threads. Luckily for me I was able to do a charge back on my credit card.

Outside of that the idea of the sand box or alternative isolation methods is worth exploring. A 30 ft. run of ICs is too long IMO.

I agree with Clio09 about Timbernation. Even though I recommended the Galibier Design sandbox, I wouldn't commission Timbernation to build one (and they built mine).

The plans and specs for the sandbox are available online from Galibier Design. Any competent carpenter/cabinet maker can build one.

As far as I heard, most cable manufacturers don't recommend phono cable longer than 2 meters. I would either better isolate the table or try longer IC between preamp and power amp. Phono signal is so low that it is susceptible to noise such as RFI.

Audiolui -- Although it wasn't made completely clear in the original post, and I too was initially confused, the connection in question is between phono stage and preamp, not cartridge and phono stage.

Regards,
-- Al