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Tube preamp for Adcom amp

A quad of new Tung Sol 6SN7 GTB's. Sound great to me!

I got two of those for the gain stage and two Sylvania coin base 6SN7GTBs for the buffer side... Fed Ex says my Freya + is out for delivery !

 
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My Freya + is here, installed in my main system using their LISST tube substitutes and sounding great right out of the box--can't wait until my tubes arrive Friday.
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Elekit TU-8500 tube preamp. I did the mods: Swapped the Chinese tubes with Mullard tubes, did the output cap swap, and did the phono stage op-amp swap. Sounds great with my WOPL 400 power amp.
 
@highend64: even after re-capping and restoring our 5500 to original specs with no modifications, I haven't found the low bass to have as much transient punch as our restored/updated 555 IIs, or several of our other amps with the same power output. I'm comparing our 5500 to 3 555 IIs, Sony TAN-80-ES, Adcom 585LE, Yamaha PC-2002M, and Forte Model 3.

The LF is definitely there, but not as fast and punchy, with the exception of the Forte, our tube mono blocks, and one or two other amps we have.
 
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