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Groove Tubes EL34-R Quartet
SKU: SKU21355
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.
Our price: €109.48
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Groove Tubes EL84-R Pair
SKU: SKU21366
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, gre...
Our price: €26.06
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Groove Tubes EL84-R Quad
SKU: SKU21368
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, gre...
Our price: €55.93
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Groove Tubes EL84-S Pair
SKU: SKU19516
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.
Our price: €44.03
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Groove Tubes EL84-S Quad
SKU: SKU21367
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 fo...
Our price: €88.06
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Groove Tubes KT66-HP Quad
SKU: SKU21346
Big fat bottom, crisp highs, very warm and a springboard response that make playing fun again! Price is for a matched quad.
Our price: €202.30
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Groove Tubes KT77-S Pair
SKU: SKU21350
This tube has a different design than an EL34 tube and a higher vacuum. This tube will have mids and lows that sound somewhat deeper and bigger than most EL34 types. Think of this as an articulate tube as an EL34 but with the low end authority of many 6L6 types. This tube has a very long service ...
Our price: €91.63
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Groove Tubes KT77-S Quad
SKU: SKU21356
This tube has a different design than an EL34 tube and a higher vacuum. This tube will have mids and lows that sound somewhat deeper and bigger than most EL34 types. Think of this as an articulate tube as an EL34 but with the low end authority of many 6L6 types. This tube has a very long service ...
Our price: €178.50
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Groove Tubes KT88-SV Pair
SKU: SKU21360
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....
Our price: €178.50
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Groove Tubes KT88-SV Quad
SKU: SKU21363
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....
Our price: €353.43
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Groove Tubes SUB-1
SKU: SKU21384
6SL7 to 12AX7 (includes GT-12AX7 Tube) Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
Our price: €76.14
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Groove Tubes SUB-1A
SKU: SKU21385
6SN7 to 12AT7 (includes GT-12AT7 tube) Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
Our price: €76.14
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Groove Tubes SUB-2
SKU: SKU21386
6SC7 to 12AX7 (includes GT-12AX7 tube) Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
Our price: €76.14
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Groove Tubes SUB-3
SKU: SKU21387
6SJ7 to 12AX7 (includes GT-12AX7 tube) Groove Tubes Substi-Tubes allow the replacement of octal type preamp tubes with the more common and higher quality 9-pin miniatures by properly mating a female 9-pin socket to an 8-pin plug.
Our price: €76.14
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Groove Tubes SUB-928PR
SKU: SKU21389
Octal to 9-pin adapter for the use of EL-84 tubes in an octal socket. NOTE: This is only for use in Class A amplifiers such as the GT Solo Single, THD Univalve, etc. This is not for use to convert Class A/B amplifiers to Class A, and should not be used in Class A/B amplifiers such as most Fender ...
Our price: €85.58
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Groove Tubes Tube Amp Book Deluxe Ed.
SKU: SKU21394
This is the latest in the two decade history of The Tube Amp Book, the Deluxe Revised Edition with CD.
Departing from the previous format, this is a large format hard cover sprial bound book with two major sections, split in the center. This version is highly expanded over previous edition...
Our price: €59.00
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