tube pre-amplifier

Atma-Sphere MP 1 MK. 3.3 Almost Brand New (3 weeks Old)

Pre-amp is now sold Thanks for viewing: Atma-Sphere MP-1 A World-Class Pre-Amplifier In Custom Gold/Silver Casing! This is a Client Order that was cancelled at the last min due to finance issues with this pandemic and personal illness; their loss is your gain, This is one of the most...
- Phantom-Audio
- Listing
- Apr 11, 2022
- Category: For Sale: Amplifers: Integrated, Power and pre-amplifiers
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ARC ref10 tube rolling?

I just purchased a Ref 10 which shows 2535 on the tube hours. The preamp is on the way to arrive next week. I want to know what are the recommendations for some tube rollings for the ref 10? It uses eight 6H30P in the main units, two 6550C and two 6H30P in the power supply. Thanks!
- yuhengdu
- Thread
- Dec 20, 2020
- arc ref 10 tube pre-amplifier
- Replies: 16
- Forum: Power Amplifiers and Preamplifiers Forum
Esoteric Audio Research 868L or 868LP tube preamplifier

Does anyone here have experience with either of these tubed preamplifiers? If so, would you be so kind as to let me know what your thoughts are with them? Thanks in advance and Merry Christmas/Happy Holidays to all! Tom
- treitz3
- Thread
- Dec 24, 2019
- ear tube pre tube pre-amplifier
- Replies: 21
- Forum: Vacuum Tube Audio Forum