Accidental damage, normalNormal wear and power surges are no longer an issue with these comprehensive and affordable plans. We even pay to ship your gear for repairs. More details.
Covers much more than the original manufacturer's warranty:
Damage due to unexpected and unintentional spills, drops and impacts
Damage due to normal wear and tear
Damage caused by lightning/power surge
Damage due to dust, internal heat, humidity, heavy usage
No Lemon Policy on merchandise over $200- if it fails for the same reason 3 times, it is replaced on the 4th breakdown
Complete refund in the event of failure or substandard performance on merchandise under $200 (Gift Certificate sent for the full price plus applicable sales tax paid)
Manufacturer's Specs Coverage -- The product does not need to fail to be covered. If the product does not perform as it did the first day you bought it, we will repair or replace it so that it does
Free shipping to and from repair facility
Plans are transferable in the event merchandise is sold
Limit of Liability: The least of the cost of (1) authorized repairs, (2) replacement with a product of similar features, (3) reimbursement for authorized repairs or replacement or (4) the price that you paid for the product.
*Limitations and exclusions apply. See terms and conditions for program details
The Groove Tubes GT-12AT7 preamp tube is manufactured to the highest quality JAN spec. NOS, made in Russia for extremely long life. Used widely in most U.S.-made amps and, in particular, Fender amps. Fender amps with reverb use 2 - 12AT7s -- one for the reverb drive stage, and one as a phase inverter to drive the push/pull output stage. The makeup of the 12AT7 is very similar to the 12AX7 and it can be substituted for a 12AX7 in a pinch. Some players prefer the 12AT7 in the driver stage of a Marshall for a cleaner, brighter tone. (The driver or phase inverter is the 12AX7 located nearest the power tubes.) The 12AT7 is rarely used in a tone-generating stage, but rather in function stages, so the Groove Tubes GT-12AT7 is selected for durability.
Country of origin: Russia
Groove Tubes Gold Series GT-12AT7 Preamp Tube
Features:
Tested under extreme conditions Guaranteed free of excess noise and squeal JAN spec. Military NOS Extremely long life
Country of origin: Russia
Groove Tubes Gold Series GT-12AT7 Preamp Tube
Specifications:
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.
Get your gear covered!
Now you can get added warranty protection for your new gear. Pro Coverage steps
in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program
offers you UPGRADED COVERAGE if your product ever fails!
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
It seems like the previous reviewer did not understand the use of the AT7 tube. It is used in the reverb channel or more importantly in the phase inverter position (the tube before the first power tube). The GT website even states this.
It is primarily a functional tube (above) and not a tone tube to be used in V1 of V2. It is roughly 80% the power of an AX7. This tube does contribute more to feel than tone and is brighter and more pick sensitive when used as a PI.
You can increase the Master volume and use it to overdrive the power tubes.
I'm not a fan of GT but this is one of their best tested Russian tubes (still used as military standard) and durable tubes made to last.
So use it correctly and you will get a softer, more articulated playing amp!
I was persuaded into buying these tubes instead of waiting for the JJ tubes I should've waited for. They sound so overly-mellow and flat with no punch. They are not bright like the salesman told me, and you can barely hear the high end in chords. Playing the higher strings is the worst, as they sound bare and empty. Not to mention that everywhere you read about Groove Tubes, it says they're just re-packaged and re-labeled (sometimes cheaper) tubes from other brands. Save yourself the stress and money... don't buy these.
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