After more than 25 years of designing and building preamps, Mi-Sis team of engineers proudly introduces a truly significant and unique breakthrough: a high-performance, fully active preamp that does NOT NEED BATTERIES. No 9-Volt, no AA, no AAA, no lithium  NO BATTERIES at all!
Every used battery is a hazardous waste and needs to be properly disposed of to avoid entrance of toxic chemicals into our soils and waterways. Our battery-free technology is environmentally conscious and designed to eliminate this disposal problem.
Our technology is much more than just a battery-free concept. Our preamps have the most natural and the least quacky sound on the market.  Mi-Sis custom linearization scheme allows us to get the best possible sound from a piezo pickup.
Obviously, the less stuff put in the instrument, the better its mechanical and acoustical integrity is preserved. This philosophy is the driving force behind Mi-Si's approach - the minimalistic design with the maximum functionality.

About Mi-Si

Mi-Si Electronics Design, Inc. (pronounced "My-Sigh") was founded in April 2004 by an experienced team of engineers with a passion and a drive to make music technology better - for both artists and music lovers. Although new to the marketplace, Mi-Si's 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.


Player's Choice Awards 2011 Acoustic Guitar Bronze.


Mi-Si Appoints Kikutani Music Co., LTD as Exclusive Distributor in Japan

Mi-Si is pleased to announce the appointment of Kikutani Music Co., Ltd. as the exclusive distributor of Mi-Si products in Japan. Both Mi-Si and Kikutani look forward to expanding the presence of Mi-Si in Japan. “Kikutani is a highly established and respected family-owned company. We are honored to have Kikutani as our partner in Japan, and it’s a perfect match,” said Dr. Simona Ioffe, President of Mi-Si.


Magpie Air – The Best of Two Worlds

Mi-Si announces the arrival of Magpie Air – a hybrid approach combining the benefits of the award-winning, single coil active magnetic pickup and the new high-performance MEMS microphone into an extremely light and compact system.

With two separate volume controls, this allows for the most flexible and powerful solution for guitar amplification. “Magpie Air is the next step in Mi-Si’s comprehensive line of battery-free systems for acoustic guitar amplification, with special attention given to rich sound quality and ease of installation,” says Dr. Simona Ioffe, President of Mi-Si.

For further inquiry, please visit booth 5918 at NAMM 2018.


Mi-Si Partners With Höfner

Mi-Si is pleased to announce the partnership with Höfner GmbH & Co. on development and production of a preamp system exclusively for Höfner instruments. This partnership represents a new milestone for Mi-Si and validation of its acoustic amplification design philosophy. For further information, contact Mi-Si at

NAMM Booth 5918



Social Network

  • RSS
  • Facebook
  • YouTube
  • Twitter