Item # 219158 | Customer Ratings: ( 5 Based on 3 reviews)

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Groove Tubes Gold Series GT-6L6-R Matched Power Tubes
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These Groove Tubes Gold Series GT-6L6-R Matched Power Tubes are Russian made, same as the 5881, but matched in the GT system. These are a very sturdy and reliable tube, with slightly less power and a more aggressive edge when pushed into distortion.

These are the tubes that are used by Fender in amps that use 6L6 tubes and DO NOT come from their Custom Shop. These are used in the Hot Rod series, Blues DeVille series, Pro Tube series, BF reissue series.

The GT 6L6GE is used in the 57 Tweed, Vibroverb and Vibro King amps.

If you are trying to match your stock tube rating with the GT rating:

On Fender amps, output tubes in newer amps are color coded. The scale is:

Blue = GT 1-3 rating
White = GT 4-7 rating
Red = GT 8-10 rating

Low, medium, and high style descriptions refer to break up modes of the tube for an overdriven guitar signal. High-rated tubes break up slow and have the highest amount of headroom, while low-rated tubes break up easier and have the least headroom, yielding a heavier, harder distortion. Medium-rated tubes fall in between.

Groove Tubes Gold Series GT-6L6-R Matched Power Tubes Specifications:

  • Country of origin: Russia

Groove Tubes Gold Series GT-6L6-R Matched Power Tubes

90 day warranty on power tubes, includes replacement of whole set if one tube goes bad.
180 day warranty for preamp tubes.
3 year warranty on SubstiTubes and Solid State Rectifier.
Check with M-Audio for warranty on GT microphones.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 3 reviews)
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  • Once you go G, you never go B.

    As reviewed by Chris on 1/22/2011

    I use a 7 rating in my Mesa Dual Rectifier and they sound phenomenal. I've had the same pair in for about 2 years through a LOT of touring, and i'm just NOW starting to see a difference in tone and quality. I play more of a pop/rock style and these tubes help really fill out the mix on stage. They are so versatile! i can have a great low gain tone for a more indie sound, but also a great heavy sound for the hard breakdowns. I definitely recommend these. These tubes along with the GT Russian Preamps, great combo!

    3 of 3 people found this review helpful.
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  • Great product

    As reviewed by Lightning scott on 9/3/2010

    I'm an old 80s heavy metal guy.I've used sovtek tubes for years the night before a gig I blew a tube so I went to guitar center for some replacement all they had were groove tubes(wasn't sure about them heard some so so things about them)so I bought them. I got say that I'm very impressed the tube are so warm sounding in my jcm900 Marshall it blew my doors away don't know why people talk bad on these tubes I would highly recommend them!

    3 of 3 people found this review helpful.
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  • Cleaned Up My Hot Rod Deluxe III

    As reviewed by Ron Lucas on 1/17/2012

    I purchased the Fender Hot Rod Deluxe III knowing it had a clean channel and dirty channel. I use pedals into the amp through the clean channel, but at volumes higher than 3 or 4 on the amp, it would start to break up. I called Fender who confirmed the stock tubes are rated between 4 and 7 which break up that early. So they recommended these tubes rated between 8 and 10. I got the 10. After installing and learning how to re-bias the amp on YouTube, the amp plays very clean when cranked up to 8. Works as expected.

    1 of 1 people found this review helpful.
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Questions about the Gold Series GT-6L6-R Matched Power Tubes (219158)

PO Box 4769
Westlake Village, CA 91359
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