JJ Electronic 5AR4 / GZ34 Reviews

4.9 Rating 11 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

Andrew Sefcik

Verified Reviewer

“First time use with this product, the products was referred by one of your associate Techs. Only in use 30 days now, appear to be performing well. I'm still assessing them but they appear to be quite adequate. I will continue to keep you informed. Thank you for your continued support your cooperation. The management Andrew A Sefcik”

Helpful Report

Posted 9 months ago

Bud Williamson

Verified Reviewer

“These tubes have been very stable and so far I fine replacement for the stock Prima Luna rectifier tubes I have not had the chance to try any of the other options for these type of tubes yet Your staff and processes have been flawless in all of my dealings with Upscale audio”

Helpful Report

Posted 3 years ago

ROEL MANALASTAS

Verified Reviewer

“It's good, but not yet sure if better than the original rectifier tubes for my Primaluna Prologue Premium Preamplifier.”

Helpful Report

Posted 3 years ago

Craig Boguta

Verified Reviewer

“Greatly improved low end punch and depth but lost some sparkle on the high end. Darker sound on a pair of magna planer speakers. But they sound better when playing rock or blues now”

Helpful Report

Posted 3 years ago

“The tubes enhance my system. Thanks Upscale for the recommendation!”

Helpful Report

Posted 3 years ago

“Bought two as backups in case my precious Philips 5R4GYS decide to fail. I've been told the JJ tubes are really good by a few folks.”

Helpful Report

Posted 4 years ago

ROBERT GIGLIUTO

Verified Reviewer

“A reliable good sounding replacement for the stock 5AR4s.”

Helpful Report

Posted 4 years ago

Thomas Leaver

Verified Reviewer

“As always perfect suggestion. Thanks so much. Tom Leaver”

Helpful Report

Posted 4 years ago