2. analog
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Attenuator & Transformer for Moving Coil cartridge

my analog front end is as follows:
- Lyra Delos
-Clearaudio Performance turntable
_ Musical Fidelity XLPS-V3

I am delighted with the sound of this system. Obviously The turntable is connected to the MC connectors of the XLPS.
However, the other night I discovered that I had a SignetMK10T Transformer for Moving Coil cartridges from years ago unused in a box.
I wanted to start playing with transformers feeding into the MM input of my phono stage but then noticed that with the step up ratio of 1-15 of the Signet, given that Delos produces 0.6 mV this will present 9mV to the phono stage which is clearly way too high.

so my basic question is could placing HIFI quality attenuators between the transformer and the phono stage bring the voltage down to an acceptable 5mV level?

Would this have an adverse effect on the sound quality gains of using a transformer ? if not what value of attenuation should be used?

Thanks in advance for all your replies and advice.

mgolpoor
128x128mgolpoor
mgolpoor's avatar
mgolpoor OP
19 posts
 
Thank you guys for your responses. 
After reading all of these I have put aside the idea of of trying to reduce the output of the SUT, as the wrong approach.
I the next day or two I will actually try the Signet SUT with the Delos and will report back of my findings.
lewm
6,770 posts
 
I should have said it myself; try it (the 1:15 SUT with no attenuation of its output).  You can't break anything.  I concur with the others that it might work OK.  Except I don't necessarily agree that a good MC phono stage is never as good as MM + SUT.  But that's not the question here.


mgolpoor's avatar
mgolpoor OP
19 posts
 
Hello again guys;
I am so glad that I posted my question/apprehension on this forum.
After all the above replies , last night I decided to connect the MK10T transformer and hear for myself.
As I said at the start of this thread I already thought that Delos was an amazing cartridge and were enjoying it every night. However after connecting the transformer. the sound took on an entirely different character. The best way I can describe it is a much wider soundstage and so much more space between instruments and and individual singers being either forward or background. The midrange is much more liquid now.
The effects are so startling that last night I ended up listening to LP after LP until about 3 AM !

As a result of the 1-15 turn ratio of the Transformer the sound volume is ever so slightly higher than before. In fact this has the added advantage that there is not that much difference now between my CD player and the Analog set up in terms of volume (I don't have to continually change the volume whenever changing source, small point but it was mainly annoying).

Once again thank you guys for encouraging me to give this transformer a try and be so pleasantly surprised.

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