Gold Lion KT88 No Cryo Reviews

4.9 Rating 163 Reviews

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Phone:

909.931.9686

Email:

joel.m@upscaleaudio.com

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

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“I love the sound of these tubes. Running in two Primaluna EVO 100's, used to bi-amp B&W speakers. The sound is more muscular than the stock EL-34s, with a more defined and "slammy" bass, without losing too much on the top end. However, I bought a set of 9 tubes in July 2022 (one spare), and now in Dec 2022, with under 500 hours on the tubes, two of them have gone bad (in two different sockets on one amp). I'm wondering if Genalex are having quality control issues.”

6 Helpful Report

Posted 2 years ago

William Monahan

Verified Reviewer

“For modern production power tubes, the Gold Lion KT88 is a really nice addition to any amplifier. Upscale Audio provided top-notch service and support, and was incredibly responsive. Fast shipping. Could not be more pleased. Thanks all!”

1 Helpful Report

Posted 2 years ago

Alex Burrows

Verified Reviewer

“Truly exceptional in a Doge 10 MKIII amp.”

Helpful Report

Posted 2 years ago

Michael G Brulc

Verified Reviewer

“Using these in a Decware Tori JrV2 nice strong bass and very clear midrange amp paired with Decware Tube Tots.”

Helpful Report

Posted 2 years ago

Michael G Brulc

Verified Reviewer

“Sound is very clear in midrange and powerful bass using these in Decware Tori Jr.”

Helpful Report

Posted 2 years ago

“I bought four Gold Lion KT88s from Upscale Audio back in August 2022 for my Willsenton R8 integrated amp. Around mid-October I heard some popcorn noise coming out of my left speaker. The KT88 in slot two failed as I couldn’t adjust the bias anymore. I live nearby so I called Upscale to set up an appointment to return the tube (still under warranty). I drove out to Upscale and met with Ken. He asked me to bring all four tubes back in their boxes so they could match the replacement tube. Took 10 minutes to get the new tube and head home. Ken was very helpful through the entire process. I’ve bought a good number of tubes (KT88, Mullard EL34s, 12ax7, 12au7 and 6sn7s) from Upscale among other items. Thanks Uncle Kevin, always great service and products.”

2 Helpful Report

Posted 2 years ago

“Replaced Kt-90's in The Rogue Apollo Mono amps. Magical Mid range, Solid well defined Bass, Sweet highs. Superbly Matched. Thank you.”

2 Helpful Report

Posted 2 years ago

Douglas McKnight

Verified Reviewer

“I purchased this tube to replace a blown one of a quad I got from you a couple yrs ago, maybe 400 hrs of use. Now a different one has failed after being up and running for only 1.5 hrs. So I am now listening to an old set of JJs that continue working fine as I decide what to do next, I like the sound of the Lions, but not sure if I can trust them.”

1 Helpful Report

Posted 2 years ago