Mercury Magnetics specializes in designing and manufacturing premium guitar amplifier power transformers, output transformers, and chokes. Their transformers are crucial components that shape the unique sound of guitar amps, catering to top guitar players, boutique amp makers, and high-end amp manufacturers worldwide. The company handcrafts all transformers in California, USA, with a focus on uncompromising quality, consistency, and reliability. Mercury Magnetics is renowned for its innovative transformer designs tailored exclusively for guitar amplifiers, offering a range of transformer series for different tonal characteristics and upgrades for popular amp designs.