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Is there a length limit for Turntable cables?

I need to move my turntable to a more vibration-free location; or isolate it better from floor vibrations. Currently, my MMF5 works well near my preamp. However, I like the sound of my garage-sale-bargin Thorens TD160 much better and want to replace the MMF5. But if placed where the MMF5 is the TD160 is highly sensitive to vibration. The MMF5 currently sits on a 2" maple shelf which rests on Vibrapods on top of a wooden cabinet which sets on a carpeted suspended wooden floor. So, I'd like to move it to a very stable location nearby; or, isolate it better in its current location. If I relocate it to the more vibration-free location, however, I would need a 15 foot interconnect between the TT and preamp. Is that too long a distance for a TT interconnect? Will that long a cable degrade the sound significantly? Any suggestions for isolating it better in its current location.
Also, I'd like recommendations on good TT interconnects and would like to keep the cost low.
Thanks for any suggestions and comments.
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rwwear
2,873 posts
 
If your Mac pre has balanced phono inputs, you can get a balancing transformer from Jensen or maybe even use an ARC BL-1 to convert the single ended phono output to balanced. Then you can run longer cables without so much signal loss.
newbee
4,767 posts
 
Much depends on the type of cartridge you are using and its interface with the IC's. As I recall from long ago before I started using MC cartridges, the MM cartridge output has to be matched to the resistance factor of your phono cable. Too long or too short and your sound will be too bright or rolled off. This is not as critical for MC cartridges which are not as sensitive to resistance in the IC's.
nsgarch's avatar
nsgarch
2,524 posts
 
Newbee, I believe it's capacitance that affects MM carts. And yes, a long cable run would definitely present a problem for a MM cart. Good IC's even long ones don't present a resistance issue. My 24 ft Maestro IC is only 0.6 Ohm.
newbee
4,767 posts
 
Nsgarch, I do believe you are right! Its capacitance for MM cartridges and resistence for MC's. I haven't used a MM for 20 years, and I have a short term memory problem. :-)
bdgregory
1,715 posts
 
Joe, in my layout I originally hooked up a Music Hall Phono Pack pre sitting next to the TT, with the 3M IC's going into my Exposure Preamp in another rack. It worked great. I moved from the Exposure to a Rega Hal preamp that has a very nice phono section, and in my haste just substituted the connectors in place of the phono pack.

One reminder - make sure you construct a good ground jumper for the Phono to the preamp. I had awful ground problems initially. Once solved it's worked great.
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