acoustic products



For either the traditional or alternative instrument builder, our AVT and SEB3-P active preamps are a simple and effective way to plug in and be heard! Features include potentiometers for minimal modification to the instrument, a 2.5mm input jack for your UST (under saddle transducer) and up to 3 bands of equalization.

End Pin Preamp
The end pin preamp is a minimally invasive solution for those who want to add a UST (under saddle transducer) but do not want to cut a large opening in the guitar's body. Our TM Series are professional level preamp systems with increased output and enhanced presence in both single TMA-11P and dual TMA-22P (condenser microphone) channel designs. The EP Series offers both value and performance with thumb wheel volume and tone controls for a full acoustic sound.

Passive solution for both UST (under saddle transducer) and ST (surface transducer) applications! A 2.5mm (1/8") input jack converts to a standard 6.3mm (1/4") output jack so you can connect directly to an amplifier or sound system. Models include both flush mount and end pin style in chrome, gold and nickel.

Under saddle TRAnsducer

Our Under Saddle Transducers (UST) are manufactured in South Korea using only the highest quality components for a noise free natural tone and superior output. We offer models for steel string guitar, nylon/classical guitar, bass (4/5/6 string), ukulele, mandolin and oud.


The ST Surface Transducer makes it easy to amplify any acoustic instrument. With a 3M peel & stick adhesive back, simply adhere to the inside or outside of your instrument to pick up up a full tone similar to a condenser microphone. You can plug directly into your amplifier or a passive output jack without the install requirements of a UST (under saddle transducer).


Turn your mandolin into an acoustic-electric with our PMB-1 Piezo Mandolin Bridge! The adjustable rosewood bridge features our SAM UST (under saddle transducer) mounted in a precision cut saddle channel. Use with a passive output jack or acoustic preamp for increased output and tone control.
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