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VPI Classic hum

Got mine a few weeks ago. Installed it with a high-output Benz Ace H cartridge. Loved the sound but there was a hum when I turned the preamp volume past the 10 o'clock position. Later changed to a Clearaudio Concerto, the hum was quieter, but wouldn't go away no matter what I tried.

Then I read the manual closely, and it said something about using shielded interconnects. So I tried a pair of Rega Couple wires, which are made from Klotz cable, and are shielded.

And you know what, the hum just vanished! Now I'm at peace ...

Just to share with those have hum issues with the Classic. Do share your solutions.
bassraptor
bassraptor OP
64 posts
 
I got the dealer to come over to my place to listen, so he could hear what I was talking about. He agreed there was a hum each time the cartridge hit the groove and started playing. He tried a few tests, including what Bifwynne earlier suggested. Says he never heard on the issue from other Classic customers.

We then transferred the Maestro over to the Aries 3, and immediately, on the first LP itself, we could tell. No hum. Just the music and usual heavenly pops and clicks.

He offered to take back the Classic, I just need to top up for the Aries 3, which is rarely utilised demo unit with the protective paper sticker still attached to the plinth. Discounted from his usual retail, of course.

Sorry to see the Classic go ... now to work towards turbo-ing the Aries 3 along the way. Audiophiles ... sigh ...
bassraptor OP
64 posts
 
And thanks for all the suggestions and feedback, folks ...
bifwynne
2,206 posts
 
In my post from May 28th I said "I installed my old CA Virtuoso and I'm back in business. Phono pre is ok. No hum or resonance that I can detect." Sorry guys and gals -- too quick on the draw "pardners."

After more listening, I get the same exact bass resonance with the Virtuoso as I did with the Maestro. And that makes more sense because the cartridges are very similar.

I am still trading e mails with Mike at VPI about the bass resonance issue. I am 100% confident everything will be resolved to my complete satisfaction this coming week. When everything settles down, I'll report back.

In the meantime, to everyone reading this post, have a safe and restful Memorial Day weekend. Let's not forget what the holiday is all about. G-d bless America and the brave men and women who have taken up arms in her defense.
bassraptor OP
64 posts
 
The Aries 3 is running beautifully. Itchy fingers - wondering how it would sound with the Classic's metal platter. Mike of VPI said no prob using it with the Aries 3, so I did a switch.

Wondering if it's my imagination that the metal platter gave the sound more weight and control ...

Damn, this road doesn't end, does it?!

Cheers!
bifwynne
2,206 posts
 
Hey Bassman, I'm burned out with all these delays. Too much gatification delay. Still waiting to get my Classic 3 arm. BTW, I just sourced a new Ortofon 2M Black and a practically new DV 20X H MkII. Should get both before end of the week. I hear both sound great on the Classic. I'll try both and run with the better one. I'll report back.
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