Gold Lion KT77 / EL34 No Cryo Reviews

4.9 Rating 81 Reviews

Visit Product Page

Phone:

909.931.9686

Email:

joel.m@upscaleaudio.com

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

Visit Product Page

“It can be difficult to decide which brand of tube to go with, but I found the Upscale Audio website very helpful in determining the right tubes for my amp. I think these tubes have really brought the amp back to an "as new" state.”

1 Helpful Report

Posted 4 years ago

“I bought these from Upscale about 3 months ago and at first did not like them. They sounded very grainy. I have an EVO 100i driving Kef R3’s. As they broke in and my ears became more used to the change from the PL 34’s, they became more enjoyable. Now after maybe 70 hours of use, I really do like them. They initial graininess has turned into what I would describe as tonal texture. If you have ever heard a saxophone played up close, you can hear the air blowing against the reed. If you have ever heard an upright bass being played up close you can hear the string being plucked by the players fingers and the sound of the instruments wood body resonating. These are the types of improvements I have heard. They bass seems somewhat deeper while the mids and highs remain clear and balanced. Give these tubes time to “break in” and you might be very pleased.”

3 Helpful Report

Posted 4 years ago

“Marvelous tubes. My Stereo 70 sounds significantly better! Break in time was 20 more hours. Thank you for recommendation of tubes.”

Helpful Report

Posted 4 years ago

James Bowling

Verified Reviewer

Author didn't leave any comments.

Helpful Report

Posted 4 years ago

Author didn't leave any comments.

Helpful Report

Posted 4 years ago

“I believe that I found the right combination of tubes for my Yaqin M13S amp. These Gold Lion KT77 tubes are the final piece of the puzzle. They replaced the original Chinese blue tubes and also the EH 6CA7 tubes that I had rolled in. These Gold Lions gave me the sound that I was looking for....in combination with the Brimar 12AU7 and the Gold Lion 12AX7. (all purchased from Upscale Audio), my amp sounds warm and detailed throughout the audio spectrum. The soundstage is startling, and dynamics are so much more improved no matter the genre. My system never sounded better. All based on the reviews posted here. I think that I’m set for a while!”

Helpful Report

Posted 4 years ago

Author didn't leave any comments.

Helpful Report

Posted 4 years ago

“What can I say? Never knew my Primaluna could sound better then it did. Wow, just wow. Loving these replacement tubes, took about 30hrs if break in for me and I’m enjoying pure audio bliss. Thank you upscale for the easy and quick upgrade. I don’t think I’m buying tubes anywhere else.”

Helpful Report

Posted 4 years ago