Tung-Sol 6550 No Cryo Reviews

4.8 Rating 34 Reviews

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joel.m@upscaleaudio.com

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“Excellent tubes. Running a Primaluna amp with Focal Kantas. I was very surprised to hear a big difference with these tubes than others, including EL34s, and KT66 and 77s. The 6550s are very linear top to bottom, smooth and clear sounding. Highly recommended.”

Helpful Report

Posted 1 month ago

David Arnovitz

Verified Reviewer

“Had a 6550 go back prematurely so I ordered one replacement and just like that, my ears are humming again. Thanks for the very fast and friendly service....”

1 Helpful Report

Posted 10 months ago

Author didn't leave any comments.

1 Helpful Report

Posted 1 year ago

Author didn't leave any comments.

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Posted 1 year ago

Chris Johnson

Verified Reviewer

“They have that gut-bustin' punch of a GE 6550. The "Mike Tyson" of tubes?”

1 Helpful Report

Posted 2 years ago

Peter Austin

Verified Reviewer

Author didn't leave any comments.

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Posted 2 years ago

“Replaced my GE 6550As and I'm very pleased with the power output, clarity, imaging, and bass response of the Tung-Sol. Used in my 1995 CJ Premier 11A amp. Bought a spare set of four as well.”

1 Helpful Report

Posted 2 years ago

“Tubes were perfectly matched and the quality one would expect from Upscale Audio.”

1 Helpful Report

Posted 3 years ago