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Advice on a preamp

I am looking to replace my preamp as part of my next upgrade(itis). I am currently using an Opera Consonance Reference50MkII tube pre into a Sanders Magtech Amp to drive Monitor Audio PL300 speakers (3 way, 4 ohm). Does anyone here have any good experiences with a particular preamp with the Magtech? I listen mainly to Classical, Jazz, Blues & Rock. Cheers
shamus2211
limniscate
233 posts
 
Your Sanders Magtech Amp has 100kohm input impedance, a perfect candidate for a passive preamp.

So the specs on Sanders' site are incorrect for the Magtech.  According to an email from Roger, these are the correct specs:

"I designed the Magtech using a FET input stage so that it has a very high input impedance (100K) when used in single-ended mode. When used in balanced mode, its input impedance is only 1K, which is too low for many tube preamps."
limniscate
233 posts
 
No one suggested a McIntosh or an Audio Research preamp. Is that because of the price or incompatibility? Just curious.

I just got an ARC Ref5SE this week and am running it with a Sanders Magtech. My initial impressions are that it's quite a step up from my Aesthetix Calypso Signature (weightier and purer sounding), but I'll need to do further testing.
davidhe19audio
18 posts
 
Limniscate, does your Aesthetix has noise issue.  From time to time, I heard people talking about importance of tube matching, and the consequence off mismatch.  I am considering to get one.

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