At Twister Amps we have a very liberal warranty policy.
We believe we build the highest quality, point-to-point wired, hand-built amplification that you can buy.
That said, every Twister Amp is covered for 10 years - parts & labor! There are, however, exceptions:
Tubes and Speakers - are covered for 30 days (Tubes), and 90 days (Speaker). Cosmetic parts such as tolex, grille-cloth, and cabinet hardware are only covered for 1 year.
All warranty coverage is from the date of manufacture. This warranty is transferable to any subsequent owner(s). No proof-of-purchase, or other paperwork is required as long as the original serial number, and date code are intact.
Misuse and blatant abuse will not be covered under warranty. Output transformers that are damaged due to running the amp without a speaker cabinet, or connecting your speaker cabinet with something other than a proper speaker cable (ie, a guitar cable) will not be covered under warranty.
Basically, if you don't drop the amp off a tall building, leave it out in the rain, or run it without a proper speaker cab or cable, we're going to fix it for free if anything should go wrong with it.
Shipping costs to send an amp to us for repair are the responsibility of the owner. We will pay for the return shipping costs.