Applied Microphone Technology - designed and manufactured in the USA.
S25 - Side Mounting Bass Systems

S25 - Side Mounting Bass Systems

The AMT S25B and S25i are Applied Microphone Technology’s original side clamping system’s for acoustic bass. Designed, manufactured by hand, and distributed by AMT in the USA. The system is intended to clamp onto the side of a bass allowing for quick and easy removal for traveling or when the microphone is no longer needed. An adjustable clamp allows for different sized instruments.

The side mounting systems are the # 1 choice for top professionals that look for the most natural sound reproduction possible from a clip on microphone. The S25B and S25i include updated features including D.C.T. (Disconnect Cable Technology) with the ability to connect the Quantum 7 creating a belt pack free wireless system if desired.

The systems are an electret-condenser microphone that has been designed specifically for acoustic bass. All of the parameters that are problematic for the double bass have been addressed. In order to get the most gain before feedback it uses a very tight pattern to give a high rejection to surrounding noise, at the same time reproducing accurately the subtleties of the bass.

As placement is especially important with an instrument that has a fine finish and varying dimensions, this microphone's attachment mechanism is designed to secure the mic to the bass in different positions taking only seconds to attach. The concept for the original version of the AMT Bass microphone was to be able to position the microphone exactly where the player wanted as well as making it portable for travel. The clamping mechanism is fitted with natural soft suede so as not to mark or mar the instrument.

Manufactured with lightweight aluminum to keep the mass low yet extremely strong, this microphone will remain durable through many years of use. The flex arm, unlike any other microphone system on the market, is easy to position yet retains it's placement throughout the most active of performances.

This S25B utilizes a complex circuit that is tailored for the needs of an acoustic bass player playing in live sound applications with instruments such as drums and acoustic pianos. The system requires 1 XLR mic level output. The pre-amp for the microphone is rugged anodized aviation aluminum, which houses the electronics that can be placed on the floor.

The pre-amp is powered by battery or phantom power. The output is terminated with a male XLR type connector for balanced use. The mic is connected to the pre-amp by a four pin locking connector. Comes with BP46 power supply / preamp with 1 XLR Output, mounting system, and hard shell case.


The S25i comes complete with the Inline preamp, case, and AMT disconnecting cable. The inline preamp is a small ‘plug in’ style power source preamp that can rest on the ground, on a music stand, or in your pocket. It includes and XLR output and phantom power required.

The S25B comes complete with the NEW (2020) BP46 preamp, case, and AMT disconnecting cable. The AP40 is intended to sit on the floor and includes and XLR output. Phantom power or a AA battery required.

$649.00 $519.00