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Groove Tubes

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Groove Tubes 12AT7
12AT7. Used for phase inverters in many amps such as Fender Black and Silver Face, reverb drivers, etc.
€25,13
including VAT 19% , [plus shipping]
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Groove Tubes 12AU7
These are commonly used as phase inverters in McIntosh Hi-Fi amps, some Ampeg amps, and will yield the most clean headroom in many amps.
€31,87
including VAT 19% , [plus shipping]
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Groove Tubes 12AY7
This tube is closest in specification to a 12AX7 and can be exchanged with a slight drop in gain. Most companies changed over to the 12AX7 as it became more common. This tube can be tried in later Marshall amplifiers in the first gain position, where the owner of these amps would like to drop the background noise and lower the gain level to plexi or early 70's vintage gain levels with its returned wider frequency response.
€49,65
including VAT 19% , [plus shipping]
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Groove Tubes 5U4 - Short Bottle
Common to medium powered amps like the earlier Fender Super Reverbs and Bandmasters. May be used replaced a 5Y3 for improved dynamics and power. Also some players have replaced their 5AR4 with the 5U4 in their Vox AC30 amps to reduce heat and extend the life of the power tubes, we recommended this as a "stability enhancer", if you can live with the slightly lower power.
€38,43
including VAT 19% , [plus shipping]
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Groove Tubes 6550-R Pair
Highest power pentode for use in Marshall, Hiwatt, Ampeg SVT, the GT amps and a few other higher powered amps. Also popular for HiFi amps. Excellent response, a little harder sounding than 6550-C. Price is for a matched pair.
€147,94
including VAT 19% , [plus shipping]
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Groove Tubes 6550-R Quad
Highest power pentode for use in Marshall, Hiwatt, Ampeg SVT, the GT amps and a few other higher powered amps. Also popular for HiFi amps. Excellent response, a little harder sounding than 6550-C. Price is for a matched quad.
€296,02
including VAT 19% , [plus shipping]
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Groove Tubes 6L6-S Pair
Slovakian made with high power and very agressive dynamic tone...punchier sounding but still a sweet tone. New GT design with more power and heavy duty components. High power type with more highs and lows than other 6L6 types.
€83,43
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-C Pair
Classically designed with warm overdrive and soft distortion character.
€46,58
including VAT 19% , [plus shipping]
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Groove Tubes 6V6-C Quad
Chinese made copy of the old USA 6V6 we loved in our old Deluxe Reverbs. Round, warm, fat tone with lower power put great for a soft blues tone or great fat classic rock sound too. Price is for a matched quad.
€94,70
including VAT 19% , [plus shipping]
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Groove Tubes 7027-S Duet
This obscure pentode tube used in some early Gibson amps had had been off the market until our favorite Russian factory decided to decided to supply it again. They are made in very low quantities, which is why the relatively high price, but they are a close copy of the origional tube and sound real good.
€107,96
including VAT 19% , [plus shipping]
Qty
Groove Tubes 7027-S Quartet
This rare tube used in early Ampeg amps ad been off the market for years until our favorite European company, decided to help out and make one for us. A good tube in all areas, and in fact the only option if you've got an old ampeg VT22 or V4.
€216,07
including VAT 19% , [plus shipping]
Qty
Groove Tubes 7591-R Duet
Russia EL84, Good quality, long lasting type with a slightly aggressive edge when pushed into overdrive. Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording. Price is for a matched quad.
€112,32
including VAT 19% , [plus shipping]
Qty
Groove Tubes 7591-R Quartet
This obscure pentode tube used in some early Gibson amps had had been off the market until our favorite Russian factory decided to decided to supply it again. They are made in very low quantities, which is why the relatively high price, but they are a close copy of the origional tube and sound real good.
€224,73
including VAT 19% , [plus shipping]
Qty
Groove Tubes E34L-S Pair
Matched pair of two premium E34L tubes.
€72,32
including VAT 19% , [plus shipping]
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Groove Tubes EL34-M Pair
This tube is based upon a tube which is considered something of an icon to EL34 users in both the audio world and guitar amp world. There were a number of variants of the original tube and GT chose the classic XF2 dual getter version to reproduce. The original was a classic and this tube is on it's way to developing it's own great track record just as the GT-6L6GE, E34LS, and KT88SV proprietary tubes. Price is for a matched pair.
€65,07
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL34-M Quad
This tube is based upon a tube which is considered something of an icon to EL34 users in both the audio world and guitar amp world. There were a number of variants of the original tube and GT chose the classic XF2 dual getter version to reproduce. The original was a classic and this tube is on it's way to developing it's own great track record just as the GT-6L6GE, E34LS, and KT88SV proprietary tubes. Price is for a matched quartet.
€130,22
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL34-R Pair
Newly exclusive GT design, close copy of classic Mullard type with good power and flat tonal response. Unique sound, slightly edgy distortion when pushed hard. The most reliable of all in this family. Price is for a matched pair.
€73,54
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL34-R Quartet
Newly exclusive GT design, close copy of classic Mullard type with good power and flat tonal response. Unique sound, slightly edgy distortion when pushed hard. The most reliable of all in this family. Price is for a matched quartet.
€147,08
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-S Pair
New European version with even more response, higher power and warmer tone. Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording.
€49,03
including VAT 19% , [plus shipping]
Qty
Groove Tubes EL84-S Quad
New European version with even more response, higher power and warmer tone. Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording. Price is for a matched quad.
€100,60
including VAT 19% , [plus shipping]
Qty
Groove Tubes KT88-SV Pair
New exclusive GT design with special "heat wings" attached to plate for more power, longer life, and better tone. Big bottom, very dynamic, most powerful in it's class. Great in Ampeg SVT and HiFi amps. Used by many manufactures such as Matchless, McIntosh and Cary Audio. Has a 15% higher output. Expect a puncky tight tone with excellent bass response... great for country tight licks and big round jazz tones. Popular with heavy metal and speed players looking for a very clean output section where there majority of their distortion comes from their preamp section of their amp, or via pedals or effects. Price is for a matched pair.
€207,20
including VAT 19% , [plus shipping]
Qty
Groove Tubes KT88-SV Quad
New exclusive GT design with special "heat wings" attached to plate for more power, longer life, and better tone. Big bottom, very dynamic, most powerful in it's class. Great in Ampeg SVT and HiFi amps. Used by many manufactures such as Matchless, McIntosh and Cary Audio. Has a 15% higher output. Expect a puncky tight tone with excellent bass response... great for country tight licks and big round jazz tones. Popular with heavy metal and speed players looking for a very clean output section where there majority of their distortion comes from their preamp section of their amp, or via pedals or effects. Price is for a matched pair.
€414,41
including VAT 19% , [plus shipping]
Qty
 
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