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Tung-Sol 6V6GT Matched Power Tubes Hard Duet
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Description
Soft tubes reach saturation and break-up quicker. These tubes have lower plate current (Ip) and transconductance (Gm) matching numbers. They are preferred by blues guitarists for the break-up and sustain they provide.
Hard tubes have the highest amount of clean headroom before break-up and distortion. These tubes have high plate current (Ip) and transconductance (Gm) matching numbers. They take longer to reach saturation and are preferred by jazz, country and bass players. Hard tubes are also used by guitarists who rely primarily on effects pedals to generate distortion.
Medium tubes fall in between soft tubes and hard tubes. They exhibit good headroom, but will break up and distort when pushed. These tubes have plate current (Ip) and transconductance (Gm) matching numbers in the middle of the range. Classic rock guitarists and players who play a wide variety of styles generally use medium-rated tubes.

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Reviews
4.63
8 Reviews
100%
of respondents would recommend this to a friend
- Practicing4
- Concerts2
- Experienced4
- Good Quality3
- Improves Sound3
- Easy To Use2
- Functional1
Reviewed by 8 customers
Great Tubes
Verified Buyer
submitted4 months ago
byBart
fromHouston
Submitted as part of a sweepstakes
Used these as replacements for a set of Genalex tubes that were going bad. They sound great!
Excellent choice
Verified Buyer
submitted8 months ago
byGreg
fromColorado
Submitted as part of a sweepstakes
I purchased this set of tubes to tame the harsh treble of my Boogie Filmore 25. The clean tone has an excellent sound and breaks up nicely (less headroom with this tube). The trade off is lower volumes are produced.
Nice tubes
Verified Buyer
submitted4 years ago
byTerry r
fromUnion ky
Just put these in a 5e3 clone. I haven't cranked them up yet so I can't tell you how soon they break up. Easy to install. So far so good.
Wow the clarity.
Verified Buyer
submitted7 years ago
byDaryl
fromundisclosed
I bought these to replace the stock tubes in my Fender Excelsior amp wow the clarity. Plus my amp is quiet it got rid of the white noise from my amp.
I would buy these again !
Verified Buyer
submitted9 years ago
byDavey
fromWisconsin
They work great !
Good tone, not durable
submitted13 years ago
bychris leavitt _
fromMesa, AZ
I put a pair of Medium Duet 6V6GT's in my 5e3. I was pleased with the upgrade over the generic Chinese tubes. After less than one year of playing at bedroom levels, the guts of one tube came apart. I do not abuse my equipment and was very disappointed with the lack of longevity. On the other hand, it gave me the opportunity to try out the Groove Tubes soft duet. NOW I'M PLEASED! I'm not sure if it's the G.T. or the soft duet, but MAN I LOVE my tone now! I'll stick with the Groove Tubes & keep the the Tung-Sol's for a back up.
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