MTX Thunder Amplifiers have always been built with a Pure N-Channel MOSFET Design. What's a MOSFET? And what does N-Channel mean? Well gather 'round kiddies, and we'll tell you. (Yeah, yeah, this is a lesson - but keep reading - this is cool stuff.)

To truly understand how our Pure N-Channel Technology improves the sound of our amplifiers, it helps to understand how the amplifier's output stage works. Even if you don't know much about audio, you've probably already figured out how a speaker makes sound - the cone travels back and forth to move air. It's the job of the amplifier's output stage to control the speaker's movement by managing the power applied to the speaker. This is accomplished by the positive and negative circuits located on the amplifier's output stage. The positive circuit pushes the speaker and the negative circuit pulls the speaker (easy so far, huh?)

Within these positive and negative circuits are MOSFET transistors. These MOSFETs control the alternating current traveling to the speaker. Each of the positive and negative circuits use a dedicated MOSFET to distribute the power to the speaker. A common approach is to use an N-Channel MOSFET for positive (to push the speaker) and a P-Channel MOSFET for negative (to pull the speaker back). SEEMS like a good idea. But, our engineering guys (who study circuits for fun instead of doing real people things like going to movies) identified several problems with this scenario.

First, in many cases, the P-Channel MOSFETs operate slower than the N-Channel MOSFETs. This means that engineers have to add circuits to compensate for the difference. When you have to add circuits to compensate for inadequacies in your components, that's not smart design. And, even worse, in many cases, the P-Channel MOSFETs are more highly resistant devices (meaning they waste more power as heat, instead of using it to drive the speaker). What this means is that the P-Channel MOSFETs can have a much lower USABLE power rating than N-Channel MOSFETs. MTX Audio is one step ahead of the game with our Pure N-Channel Design amplifiers. We design our amplifiers to use only N-Channel MOSFETs on both the positive and negative circuits of the output stage (PURE N-Channel Design). So, no additional circuits are needed to compensate for the shortcomings of the P-Channel MOSFETs. And, both the positive and negative circuits have equal Usable Power Ratings.

Pure N-Channel Design:

1. It's more linear, so the speaker is better controlled.
2. The signal travels through fewer parts so the signal-to-noise ratio is enhanced.
3. Power rating is better, so the amplifier runs louder, longer.