wilfhunter

What exactly is MOSFET. It's on my deck and my Amp and i can't figure it out. I tried searching google but it didn't really help me with what i was wondering. What is it and what, if anything, is so good about it?

imported_Thrill_House

MOSFET (Metal Oxide Semiconductor Field Effect Transistor)
A type of large output transistor used in the final stages of many power amplifiers, and commonly found in most car and home amplifiers today.
These field-effect transistors are controlled by voltage rather than current, like a bipolar transistor. MOSFETs have a significantly higher switching speed than bipolar transistors. They generate almost no loss (little heat generation), which lends the power supply fast response, excellent linearity, and high efficiency.
Mosfet transistors are most often discrete devices, used with smaller driver transistors and other devices, to convert a small signal to a large one. They are highly stable and efficient, compared to the bipolar types that preceded them.

imported_loudsubz

they also tend to have a much nicer sound, if you listen to a full mosfet power amp they are very warm and nice sounding, unlike some solid states that can sound very mechanical.