The groove tubes gt12ay7 select preamp tube is closest in specification to a 12ax7 and can be exchanged with a slight drop in gain. The gtis a largediaphragm tube condenser, with a fixed cardioid polar pattern. The new building has allowed expansion into actual tube production, and aspen was blessed to be able to acquire the entire production line. The gt67 is a multipattern tube condenser essentially, a multipattern version of the gt66 cardioid tube condenser.
I would not choose an ntk over a 6667 unless the source called for it. 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. Groove tubes has some issues a few years ago, but i feel they are back on top as far as mass produced tubes go. This fascination led to aspen and a team of technical experts to reevaluate the way tubes were tested and matched. View and download groove tubes soulo series 75 operating manual online. The groove tubes 6l6c are a remake of the chinese 6l6 that has a shimmery and articulate sound that is not too compressed. Skip to main content skip to footer site51274034469389 site512747416330029856 new 219172 groove tubes gold series gtel34m matched power tubes site51274034469389,site51274034469298. Groove tube valves, selected and matched by groove tube to a premium standard. My local shop had a bugera tube, an electro harmonix tube what was previously in the amp and the groove tubes 12ax7r. It was for several years the flagship microphone in the groove tubes line. As such they require the additional signal boost gained from connection to miclevel inputs of a preamp or mixer.
The capsule is groove tubes exclusive 32mm disk resonator design, in a singlesided implementation the rear diaphragm was not sputtered. The preamp tubes in a my bass amp went bad and i had to get something new. Here is the link to the musicains friend listing for the sterling audio st66. This groove tubes half stack has been meticulously maintained by schroeder audio in chicago and has seen relatively little play time. Since receiving these mics a few months ago, ive used them on every recording session to date. Groove tubes bought its present building in august of 2000. That said, the years during which this amp powered the rig are celebrated by phans, and many aficionados of treys tone consider the dual 75 years to have produced some of the guitarists most unique and celebrated tones. I was just up at the groove tubes corporate officesproduction center this past week and picked up a mic to demo.
The power rating on my new tubes are 4 and they are biased at 38 ma. The mic was exhibiting a seashore type of windy, fluttery noise after being powered on for an hour or so. Groove tubes gold series gt6l6chp matched power tubes. Wtf, if i dont like it i can always sell it for the same or if not, only lose maybe a few bucks on it. Connections and phantom power groove tubes microphones output a balanced, low impedance signal. This is the best tone yet from an amp that is already my all time favorite amp. The design owes a lot to the established groove tubes gt44 microphone, and combines a shockmounted 0. If theres a sonic trait that all these mics share, its the. View and download groove tubes gt5751m specifications online.
No stranger to sweetwater, groove tubes founder and energy source aspen pittman has paid us numerous informative and always entertaining visits through the years. Groove tubes 6l6 duet a mediumoutput power tube generally 2025 watts often used in fender professional amplifiers including the fender bassman, bandmaster, concert, dual showman, hot rod series, pro series, super reverb, tremolux, twin, vibrolux, supersonic, blues deluxe, blues deville and others. It used a subminiature gt6205m tube, which we believe was a pentode, wired as a triode in a class a circuit. Chinalowrated tubes have early breakup and distortion, wide range and softer attack good for rock and blues solos. Groove tubes gt6l6ge pentode this is our flagship gt tube, the one we spent nearly 4 years developing from scratch after purchasing the original general electric design, the original rca grid winding machines that made this tube, and tons of the original materials. Never attempt to change the tube on the gt 44, gt66 or gt67 or model 1b. It took more than four years to develop, and has stunning clarity and power. And ive got a large collection of mics, with some of them costing many times what the most expensive of these gt mics retail at. The groove tubes line of microphones is exclusively distributed worldwide by maudio formerly midiman, with the only exception being the model 55 and model 66 that are sold exclusively through guitar center stores in the usa market. All groove tubes microphones, except the model 1b and model 1bfet, feature a switch to engage a pad which reduces the sensitivity of the mic 10db on the gt 55, gt57, gt66 and. The good news, is that once this is done, you should be able to replace your power tubes with groove tubes of the same type and rating without bias adjustment. The gt66 is a largediaphragm tube condenser, with a fixed cardioid polar pattern. Groove tubes d75trio half stack 1995 sand tan reverb. These are chinese mullard dual getter copies that groove tubes fender makes.
Sterling audio st66 condenser mic groove tubes gt66. Nos ge 6l6 power tubes are one of the more sought after, and gts reproductions of these sound pretty darn good. Now, groove tubes are the mostused tubes in guitar amps and a favorite of tone aficionados. Groove tubes microphones output a balanced, low impedance. The flagship of the gt 6l6 line, it looks and sounds exactly like the original g. Get the guaranteed best price on power tubes like the groove tubes gold series gtkt66c matched power tubes at musicians friend. The new gt home has close to 12,000 feet of office, lab, and manufacturing space and is located in the small town of san fernando, california. Further improving the design, we added gts exclusive heat sink wings to the plate assembly.
Groove tubes gt66 cardioid tube condenser microphone. Groove tubes gt6v6r medium power amplifier tube, matched. Please contact technical support if this is necessary. The 12ax7m is balsy, clear well defined low end, decent tone, low noise if shielded properly. Introduction unpacking polar pattern switch connections. If i dont like them, ill look elsewhere and im not out a whole lot of money. Russian made, these tubes are the same as stock 5881 power tubes, but theyre specially matched by groove tubes, resulting in a better sound and. Most companies changed over to the 12ax7 as it became more common. If so, you should have a qualified service tech rebias your amp for the new tubes.
Find great deals on ebay for groove tubes gt66 and groove tubes microphone. Discussion in the workbench started by hawkesman, feb 4, 2014. Groove tubes gt12ay7 select preamp tube musicians friend. His tireless pursuit of perfect tube tone has resulted in groove tubes. Quite simply the best 8pin pentode tubes you can buy that are specifically designed and tested for musical instrument amplification.
The two gl6 tubes were old and not even the same brand so i replaced them with a pair of matched groove tube gt6lbr medium duet amplifier tubes. The groove tubes gt6l6ge is a faithful reproduction of the original clear top 6l6. Both are outstanding imho and easily hold there own against an ntk which is about equal in sound quality i think. I just put some groove tubes el34ms in my yjm100 today and man do they sound good. My local amp tech has recommended putting groove tubes el34s and 12ax7s in my 1982 2204. Groove tubes power tubes are matched and rated in low, medium and high output levels. The groove tubes el84s is the european version el84, with even more response, higher power and warmer tone. Groove tubes gold series gtel34m matched power tubes. This tube was originally intended to be produced here. Sold as single tubes, matched duets, quartets and sextets. I have a 65 fender super reverb amp and noticed the sound just wasnt quite right. Groove tubes was started in the late 1970s by aspen pittman, who had a lifelong fascination with tubes and tube tone. Groove tubes gold series gtkt66c matched power tubes.
Groove tubes has been manufacturing, importing, and grading quality power tubes for two decades. Groove tubes gt6l6r russian power tubes medium duet. This amplifier only appeared for a few years in the mid90s. See more groove tubes legacy mic owners manuals gt44 owners manual. Groove tubes gt66 noise repair my buddy amos at marshall sound studios handed me a couple cranky mics to attempt to soothe, see what i can do.
Im a vocalist looking for that right mic for my tenor voicei found it in the gt model 1btube mic i brought it to a friends studio and tested it against the baby bottle, 4033, tlm 103, and rhode ntk. Its always nervous working for other people but it was a good challenge and test. Outside of the usa, maudio also distributes the model 55 and model 56. Groove tubes gt67 multipattern tube condenser microphone. I was told by guitar center that the sterling audio st66 condenser mic is equivalent to the groove tubes gt66 and that the mics are made by the same mfr aspen pittman. New groove tubespremium preamp tubes12ax7 gtecc83sthese do not come in the original boxesi have 5 of these which are all brand new and taken out of 2 brand new fender blues deluxe reissues one of my birthday gifts this year was 6 nos rca tubes from the 60s and so i pulled th. Mark ewing the gt66 is a chunky microphone with a matt nickel finish it weighs about 530g and measures 47mm in diameter and 190mm in length. Id like to try the recommended tubes as they are cheap and people say they work well in the amp.
Thank you for your purchase of a highquality groove tubes. Groove tubes d75trio half stack 1995 sand tan description. The groove tubes gt66 valve mic with its psm1 power supply. Groove tubes gt6l6chp pentode our most recent release of a totally redesigned 6l6c featuring addition of pure nickel carborized black plate construction, this is the same material used on the classic rca black plate versions of the 50s.
The groove tubes gt6l6r power tubes duet gives you what may just be the most reliable of the currently made tubes, with slightly less power and a more aggressive edge when pushed into distortion. Right now it has a couple tung sols and a eh in it. Gt exclusive design highperformance 6l6 black plate with heat sink wings like the gt e34ls and kt88sv. Ecc83 12ax7mgroove tubes super premium groove tubes groove tubes super premium valves take the selected gt. Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. Gt66 tube condenser microphone gt66 specifications preamp topology low noise tube based class a design tube type seleted lownoise gt6205musa polar pattern fixed cardioid high pass filter switchable 75hz,12dboctave attenuation pad switchable 10db frequency response 20hz 20khz equivalent noise 23db spl a. Jan 20 the beautiful flatsilver groove tubes gtis a nocompromise tube mic delivering better performance and sound than the many mics costing.
636 110 875 179 1085 1342 796 668 1219 1425 1523 484 759 234 1117 477 1315 347 740 548 758 1040 24 70 1062 294 378 358 297 648