Decca London Gold cartridge nightmare


Having read so much about the Decca London Gold cartridge, I decided to try one. Time passed and I finally found one on ebay that was within my budget. Cartridge was guaranteed to work with good results by a seller with very good feedback. Physically the cart looked neat, and everything, except for the mounting screws, was intact.

I had intended to install the cartridge in a new Kuzma Stogi S arm on a LP12 turntable but since the arm is scheduled to arrive end Oct 2008, I decided to try the Decca on my Lenco L75, with the original Lenco arm. At least to make sure all connections were OK, if not for any other reason.

What happened afterwards was pure nightmare. The results were horrendous, to say the least!

Tell me where I went wrong.

I tried tracking between 1.5 to 3gm but the sound ranged from tinny to severe breaking up. Even more startling, the groove vibrations picked up by the stylus was transmitted to the entire headshell, so you could actually hear the sound of the grooves generated acoustically by the vibration, kind of like a diaphragm or a gramophone horn. Lightly placing my finger on the headshell while a record played confirmed this. The headshell was quaking! With the preamp gain down to zero, you could hear the headshell vibration from a distance of a foot and a half, maybe even further, I kid you not.

The cartridge that I am presently using on my Lenco is a low output Audio Technica MC, the AT-OC3. No problems there. Tracks pretty well too, but not great, considering the Lenco arm was not made for MC carts. But the results were definitely more sane than the Decca!!

What's happening? Help!

Thanks for any advice, suggestions, feedback.

beck
tubemoose
Steve, how do you use a Decca in the RS-A1. Both the "headshell" and the Decca mount have threaded holes. Frankly, it sounds like a marriage made in hell but after using an RS-A1 for a couple of months, I'm inclined to believe anything is possible. Dave
Dubhouse, I have not done any mods as of yet, however I have thought about it but you have to be careful about those kinds of things as the decca's can be notorius for hum if things are not done just right. My philosophy is if ain't broke don't fix it.
The Linn-Lp 12,keith monks and decca gold was a marriage made in heaven and as mentioned before, the keith monks was designed specifically for that marriage an after 20 yrs. of that marriage and this so called old technology, I still haven't heard anything sound much better and yes I've heard other systems. In fact my very good friend and audiophile buddy just came back home to decca after a short hiatus with some other cartridges(clear audio maestro)to name one because he just couldn't get that magical sound the decca has. He's using his in a sme v tonearm and truthfully it doesn't sound that much better than my setup and his sounds very good! Its just something magical about the Lp-12 keith monks decca combination, I can't explain it.
Just to let you know, I have the M9ba mkIII version and it sounds better than the decca international arm.
Dopogue- here's the quote from Robyatt:

09-15-08: Robyatt
I actually like the Gold better than all but the Reference. They fit great in the RS-but BIG experimentation, to stop gound hum! The Reference is an exact fit for the RS back holes, butslightly thiner bolts than normal are needed.

It seems that he used thinner bolts to bypass the threads. Maybe he will see this thread and elaborate. Sounds very promising. I do wonder what he did to eliminate the hum.

Eee3- Thanks for the info. Sounds like you are getting excellent results from vintage components which is very appealing. I didn't know there were different versions of the Monks tonearm. The Monks tonearms are still available NOS I think for about 300 British Pounds, sans the mercury as they had to dispose of that. Are you using a mercury bath in yours?

Steve