#21
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Sitting here listening to the QS Mono 120s now with plenty of burn-in on the amps, vintage Mullard input tubes, caps, paired with Analysis Plus Crystal interconnects, wow. Larger and deeper soundstage now than I ever had with any of my Cary or Inspire amps. Plenty of top end, robust bottom end, midrange is very nice, very smooth and musical. Can listen for ten hours and never get fatigued. Hearing things in old familiar 70s tracks I've never heard before. Nice surprise. Last edited by decooney; 04-11-2020 at 04:30 PM. |
#22
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I wanted to ask those who have the Line Stage Preamp: Have you done any mods or tweaks to it? Power cord/Fuse?etc?
Just curious as I have one and really like it (my first piece of tube gear) and wonder what others may be doing. |
#23
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__________________
Glenn... Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag |
#24
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Congrats. Sure like mine. It's been mated very well with my current Quicksilver Mono 120 amps, former Cary V12R amp, and former Cary SA-200.2 solid state amp. Like the huge outboard transformer too. In addition to updated coupling caps, you can change the soundstage / tone / texture with vintage, or re-issue, or new production specialty 6SN7 tubes. +remote control and DUAL Pre-Outs, it's kinda hard to beat for the sound quality. Enjoy. |
#25
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PSVANE small signal tubes in QS amplifiers and preamplifiers -
Just for grins - rolled out my best vintage mid 1960s Mullard Blackburn tubes and replaced them with some of the latest versions of the PSVANE 12AU7-T MKII and 12AT7-T MKII psuedo Treasure version small signal and driver tubes. At first thought they would just be good for general playing when I wanted to save my vintage tubes. Now I can't seem to go back to the great vintage Mullard Blackburn tube and stay there. Back to the PSVANE again and staying there after 80-100hrs burn in. After 100hrs there is an added 3rd order harmonic and overall nice tone that presents itself in the QS amps. A little more gain, slightly fuller and more present midrange, and a wee bit of added texture and detail I never would have expected against the Mullards these replaced are true NOS+ triode matched tubes, tested on a really good curve tracer test unit. Definitely a top level challenger on both counts. Go figure...like what I'm hearing, brings the QS mono amps to another level in my rig. Way better than any of the stock JJ or EI tubes were too edgy and dry in comparison. FYI, YMMV. ... Last edited by decooney; 07-18-2020 at 02:43 PM. |
#26
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I just bought a Quicksilver Line Stage preamp, used from eBay. Built in 2016, excellent shape from original owner. I should have it later this week. I owned one about 2 years ago and sold it, but that was before I got my current speakers, Tekton Moabs. I always wanted to hear it with those, I think it might be a great match.
It will battle my current preamp, an Odyssey Candela. I have an Odyssey Kismet amp. The Candela uses 12AU7 tubes, and I have 4 sets of those, including originals. The QuickSilver uses 12AT7. I have read that the 2 tube types "might" be interchangeable in certain circumstances. Are they here? I also have an email in to QS about what it would take to add HT passthrough. I am hoping that isn't too hard. |
#27
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Also, what would be good tubes to try for tube rolling?
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#28
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I have NOS Mullard 6201 (12AT7) in my Sonic Frontiers SFL-1 and it sounds incredible. That preamp can be jumpered to use 6922 which i have grown tired of so I picked up a Kevin's Stash 6201 from upscale and it was worth every penny. When I got this pre it had a "NOS" Brimar 12at7 in it that sounded dark and lifeless. The Mullard tube transformed it. I just took my CJ Classic 2SE out of my system , I replaced it with a Zesto Leto and am struggling which to keep. The 12at7 SFL or the 6922 CJ. I think I'm going to sell the CJ and keep the SFL, it sounds that good.
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#29
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#30
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I ordered a pair of Mullard 12AT7s from Upscale Audio. One of them (left channel) would crackle intermittently and get worse after a few hours. Easily audible from the listening position, and over the music. I swapped the 2 and the problem followed the tube, so I sent it back. They said it tested fine, but sent me a new one anyway. The new one is doing exactly the same thing...
That really makes no logical sense, other than they sent me 2 tubes that test fine on their end, with the exact same problem. Any ideas? |
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