Gold Lion KT88 No Cryo Reviews

4.9 Rating 150 Reviews

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Phone:

909.931.9686

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

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Steven Greenberg

Verified Reviewer

“Bought 9 @ KT88. One tube blew immediately.”

Helpful Report

Posted 2 years ago

ROBERT SUSZYNSKI

Verified Reviewer

“Bought these for a mid 70’s Ampeg SVT bass amp. They sound great and my amp tech was impressed by the quality since we now live an a age of hit or miss power tubes. The extra testing that Upscale does to ensure the quality is worth the extra cost.”

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Posted 2 years ago

Jack Anderson

Verified Reviewer

“Love these tubes in my rogers integrated . More powerful than the 34 tubes that came with it . Thanks !”

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Posted 2 years ago

“I have several Conrad Johnson amps , Over many years I’ve had many different vacuum tubes, 6550s, KT 88’s ,EL 34s, KT 120s Kt 150s. I really enjoyed Kt 150s for their dynamics and neutral character, I love tung-sol 6550s for the tight base, And sweet sound, I finally just tried golden lion KT 88‘s and they are without a doubt the most wonderful sounding tubes I’ve had in these amps ever. Great soundstage, very realistic, very musical, and no edge whatsoever.Thank you for the great tubes and prompt service”

2 Helpful Report

Posted 2 years ago

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Helpful Report

Posted 2 years ago

“OK, I'm convinced...Kevin is right, it matters who you buy your tubes from! Ordered a replacement quad of Gold Lion KT88s (no cryo since they were sold out, though I'm not even sure what that's all about), and I noticed the difference IMMEDIATELY! Bought this same quad from an eBay retailer who had a decent enough reputation and feedback score, claiming similar tube testing/matching methods. Well, matched to what, PVC tubes??? The quad I just received from Kevin & the gang sound and perform NOTHING like what I had been subjected to these last several months from the eBay tubes. The eBay quad generated heat like a friggen blow dryer (couldn't really enjoy the music - too busy being in abject fear of my integrated bursting into a smoke bomb), had my bias settings all over the map, and took a very long time to settle in. The Upscale quad run cooler, bias damn near perfectly in both channels, and sound absolutely spectacular at only about 50 hrs of break-in so far (don't know if my heart can handle what I'm sure to be in store for once I get a good 100 hrs or so of break in under my belt!). As for the GL tubes themselves, the bass is deep and tight; top end is crisp but not brittle or shrill, almost lush; and the mid-range...holy s**t! These tubes really show my upgraded legacy B&W CDM-1NT speakers who's boss and do a fantastic job of taming the 1NT's metal tweets tendency toward harshness at higher volume levels without rolling off the top end. At long last, I see what all the fuss is all about with the GLs, and I couldn't be more pleased. (As a side note, I have a 15-yr old Jolida JD-502B integrated, and it's never sounded better. I paired this quad with Electro-Harmonix 12AX7/12AT7 front end tubes and they all play quite nicely together, like long lost siblings). Please forgive the long-windedness as I'm generally not prone to superlatives. But I felt it important to make known what a difference it makes as to where you acquire your valves and accessories. Excellent service along with fast & careful shipping. So long as Kevin & the gang remain in business and I have disposable income to blow on this hobby, they have a customer for life. Cheers, folks - Well done!!”