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Item # 219169 | Customer Ratings: Ratings ( 4 Based on 3 reviews)

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Groove Tubes Gold Series GT-EL84-S Matched Power Tubes
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      Groove Tubes Gold Series GT-EL84-S Matched Power Tubes (219169)
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This GT-EL84-S Matched Power Tube Duet and Quartet features a new European version with even more response, higher power, and warmer tone. It's the low-power pentode popularized in the early Vox AC30 amps. It was rediscovered by Matchless and now is used by nearly every tube amp company. It has a quick, soft overdrive distortion--great for recording but usually too low volume for live gigs.

Country of origin: Slovakia

Groove Tubes Gold Series GT-EL84-S Matched Power Tubes Features:

  • Country of origin: Slovakia


Groove Tubes Gold Series GT-EL84-S Matched Power Tubes Specifications:

  • Country of origin: Slovakia


Groove Tubes Gold Series GT-EL84-S 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.

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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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Viewing Reviews 1 - 3 of 3
  • Excellent Tubes!

    As reviewed by Johnny Bloom on 3/30/2010

    These are truly great-sounding tubes. I use them in my vintage Harmony amps and they are far superior to the others I've tried. Very smooth, musical and sweet. With the prices of NOS tubes rising while the quality drops, I'll never throw away any more money on questionable old parts while these Groove Tubes are available.

    2 of 2 people found this review helpful.
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  • Microphonic :/

    As reviewed by Vance Allred on 4/26/2012

    I bought a pair of these and 3 Groove tube 12AX7-C at the guitar center in Las Vegas to replace the original Groove tube/Sovtec tubes in my Blues Jr. For the first hour or so of opperation, I had THE BEST tone I could possibly imagine. I was amazed. But after that first hour, they started getting more and more harsh sounding. After about 2 weeks, i started noticing microphonics. Now after just under 2 months, I pulled them out to test them against some JJ's and noticed two of the 3 preamps were microphonic (rattle) and one of the EL84's was too. I thought microphonics only happened in preamps? The LV store manager said they would have to contact Groove Tube to see if they will replace them for me. I hope Groove Tubes steps up to the plate.... I paid top dollar for these "premium" tubes.

    1 of 1 people found this review helpful.
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  • Awesome sound

    As reviewed by Ricky White on 4/24/2014

    When I had to replace the tubes in my Crate V30 combo amp, I replaced with inexpensive tubes. The sound was very bright and I couldn't compensate enough with my amp eq. It was either overly bright or muddy. Replaced the tubes again with groove tubes(the same type that was in the amp originally) and man, what a difference. Love my amp's tone again. The groove tubes cost a lot more, but there were definitely worth the price. Very smooth sound.

    0 of 0 people found this review helpful.
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