<- Back to products
MiSi 'Acoustic Trio Mando' Mandolin pickup & preamp

"Music is about devotion, and knowing when to be free." -Leonidas Kavakos



The Mi-Si 'Acoustic Trio Mando' Mandolin pickup system features an active, battery-free preamp designed specifically to work with the Kremona piezo pickup for mandolin. Install yourself in just a few minutes, slot the Kremona pickup sensor between the two halves of your mandolin bridge, and then fit the adjustable 'carpenter jack' onto the side of your mandolin.  The preamp for this system uses Mi-Si’s custom piezo linearization scheme. The extremely compact active battery-free preamp is built into the 1/4 inch 'Carpenter Jack'.

Power up for 60 seconds using the Mi-Si Power Charger for up to 8 hours of performance time!!

About the Kremona piezo pickup sensor:
Our best-selling mandolin pickup of all time, the Kremona is the best value pickup on the market. The wood-veneered piezo element fits snugly and safely in your instrument's bridge and relays a warm, rich tone from your mandolin. The Kremona pickup is safe to use on any acoustic mandolin and easy to install or remove for players who go back and forth frequently between acoustic and amplified performances. This pickup installs effortlessly! Detaches easily when desired. Two clamps attach the jack to the side of the instrument. The clamps and feet are lined with soft cork to protect the instrument. 

About the Mi-Si Preamp unit:
Made in the USA, a perfect partnership of Mi-Si electronics with an Kremona piezo pickup sensor.  A fully 'Active' pickup and preamp without the need of a battery! The power of the 'Super Capacitor'. Charge for 60 seconds, then perform for 8 hours!

Mi-Si incorporates the use of a state of the art 'Super Capacitor' which takes away the need for a battery.  Super Capacitors are tiny coin sized rechargeable units that are permanently built into the preamp. Recharge the unit by plugging it in for just 1 minute!  One minute of charging time will fully charge the super capacitor and gives you 8 hours of performance time!

The Mi-Si 'Acoustic Trio mando' system features an active, battery-free preamp designed specifically to work with the included Kremona piezo pickup sensor. The 'Carpenter jack' preamp included with this system is powered by a state of the art super capacitor, and uses Mi-Si's custom piezo linearization scheme – allowing for the most truthful and accurate sound from the pickup.

All you have to do is power up for 60 seconds using the Mi-Si Power Charger, providing you with 8 hours of performance time!

Mi-Si Electronics proudly introduces a truly significant and unique breakthrough for high-end acoustic amplification: a high-performance, fully ACTIVE preamp that draws its power from a 'cutting edge technology' rechargeable 'Super Capacitor' and therefore does NOT NEED BATTERIES. Super Capacitors are tiny coin sized rechargeable units that are permanently built into the preamp.  No 9-Volt, no AA, no AAA, no lithium - NO BATTERIES at all! Charge for 60 seconds, then perform for 8 hours…. Wow!

A special blend of new energy sources with very low-power components and the ability to design compact and efficient circuits now make battery-free products a reality. This extremely energy-efficient design not only means no batteries, but no battery wires, no dead or fading batteries, no RF interference, no battery compartments, and no need to remove a battery from your instrument before transportation.

Mi-Si Electronics engineers bring an arsenal of expertise and more than 25 years experience in the amplification field, developing exciting and revolutionary electronics specifically designed for acoustic amplification. In the past, conventional circuit design components have been a burden to acoustic musicians, incurring extra cost, requiring additional space, and decreasing reliability and tonal quality.  Making a signal pass as simple as possible has not been a luxury, but a necessity. This knowledge is the driving force behind Mi-Si's approach - minimalist design with maximum functionality. Musicians have known this all along, the fewer obstacles between your pickup and your amp, the better your sound.

Saving the planet!
With other brands, every spent battery becomes hazardous waste and needs to be properly disposed of to avoid toxic chemicals leaking into soil and waterways. Mi-Si environmentally conscious and advanced designs eliminate this waste.

Insert the Mi-Si Power Charger into the 'Carpenter jack' socket and charge for just 60 seconds.  This gives you an average of 8 hours performance time - Wow!

Kremona piezo pickup sensor specs:

  • Lightweight, wood-encased sensor delivers the natural sound of your mandolin
  • Solid ebony, cork-lined 1/4" Carpenter jack holds firmly to the mandolin via an adjustable cork-lined clamp
  • Detachable, or may remain installed when not in use
  • Professional sound with slight to no modification of mandolin during installation
  • Handcrafted in Europe

Mi-Si 'Acoustic Trio Mando' Mandolion pickup & preamp Package includes:

  • Active Battery-Free preamp encased in a stylish 1/4 inch 'Carpenter Jack'
  • Kremona mandolion piezo pickup sensor (connected)

  • Mi-Si Power Charger

  • Made in USA