2. amps-preamps
  3. 150722-135505

VM540ML cartridge - what phono preamp is a good match

I recently upgraded to a Rega Planar 3 turntable, and put a Audio-Technica VM540ML cartridge on it, based on reviews and user comments here and on other sites.  The problem is that loud passages with massed strings and/or brass seem to get strident, overly bright and distorted.  That comes up frequently, since I listen to a lot of classical music.

Well, I found that this cartridge is spec'd for 47k Ohms resistance and 100-200 pF capacitance, which is nice to know, but Rega doesn't publish a capacitance spec on its tonearm wiring. My receiver (Sony STR-D515) shows 50k resistance but no info on the capacitance.  So, I suspect the cartridge and the phono stage might be a poor match, producing the strident brightness I'm hearing in the upper range instruments, but can't verify in the absence of specs.

So, my question is, if you are using this cartridge (or a similar A-T VM line cart), what preamp are you using to get good results?  

Thanks in advance!
2ndtrumpet
noromance's avatar
noromance
9,981 posts
 
Yes. Google 834 clone and read artofsound forum.

DG tend to be a little "hot".

If you can’t lower your Rega arm, try a 1mm shim between cartridge and headshell to change the VTA slightly. This can help tame the AT.
2ndtrumpet OP
8 posts
 
Yes, I've seen comments elsewhere to that effect about the A-T's brightness being tamed by letting them run a little low in the tail.  That's why I didn't add shims to raise the arm.  Or is it that it enhances the bass a little, which makes us perceive the treble to be moderated?

I wondered about the DG's from that period.  I have several late Mozart symphonies on DG - Karl Bohm and Berlin...the violins are a bit strident.  It just wasn't noticeable on the Technics linear tracker/AT152LP  I used for 30 years.
noromance's avatar
noromance
9,981 posts
 
You may simply be getting more of The Truth from the transducer than you were.
johnss
585 posts
 
2ndtrumpet,

yes, there is quite a range in what is offered though.

Doukmall sells what is basically a nearly direct clone for 430 bucks +/-

there are also several sellers now offering Marantz 7 phono stage clones. I just picked one of those up. Excellent, excellent build quality, decent quality parts, and chassis construction that is comparable to US made phono stages at the mid 4 figure price level. Am dying to try it out when it shows up. Some versions even have valve rectification which the original did not have.

also agree that the late DG lps can be strident and a bit edgy. But the new re-issues of same recording from DG are not, they are quite good. very natural and balanced sounding.


2ndtrumpet OP
8 posts
 
We now have two outboard preamps in the house, a ProJect Phono Box S2 and a Musical Fidelity LX-LPS.  Neither is very expensive, but both are a noticeable improvement over the Sony AV receiver's phono stage.  I have some time to compare them in a rolling A/B test before I have to decide on which to keep.  So far, I hear some differences, but they are more subtle than the differences between them and the Sony.
More to discover