PM Guitar Tubes
The PM range of guitar tubes is a unique blend of proven vintage technology plus an intensive research development program covering all aspects of performance and production. The result? Tubes of unparalleled sound quality and reliability. That’s why PM are design consultants and tube suppliers to many of the biggest names in the music business for both guitar and high-end audio.
Getting the best from PM Guitar Tubes
PM Sets are perfectly matched - the tubes you’re replacing probably weren’t when originally fitted, so the BIAS on your amp will have been adjusted to a different value for each tube to ensure even performance. If the amp is self-biasing or user adjustable, no problem! If a fixed bias type it will need to be setup by an engineer, a simple job (for him!) Check your amp’s handbook before replacing. Incorrectly biased amps reduce tube life and performance, invalidate our guarantee and worst of all...sound bad!
Visit the PM Guitar Tubes website for all available tube types