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Mi-Si’s deep and broad line of products will appeal to you no matter your playing style. Scroll below to learn more!
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We have for first time showcased the ActivatorTM in the NS Fin GT6 electric"},{"id":"636","price":"","sale":"","sale_percent":"","link":"https:\/\/mi-si.com\/ned-steinberger-with-kris-barocsi-at-guitar-summit-2025\/","name":"ned-steinberger-with-kris-barocsi-at-guitar-summit-2025","thumbnail":{"url":false,"alt":false},"title":"Ned Steinberger with Kris Barocsi at Guitar Summit 2025","author":{"name":"misiadmin","link":"https:\/\/mi-si.com\/author\/misiadmin\/"},"date":"Oct 13, 2025","dateGMT":"2025-10-13 20:28:56","modifiedDate":"2025-10-15 01:07:02","modifiedDateGMT":"2025-10-15 01:07:02","commentCount":"0","commentStatus":"closed","categories":{"coma":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E","space":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E"},"taxonomies":{"post_tag":"\u003Ca href=\u0027https:\/\/mi-si.com\/tag\/activator\/\u0027 rel=\u0027post_tag\u0027\u003EActivator\u003C\/a\u003E\u003Ca href=\u0027https:\/\/mi-si.com\/tag\/bass-guitar\/\u0027 rel=\u0027post_tag\u0027\u003Ebass guitar\u003C\/a\u003E\u003Ca href=\u0027https:\/\/mi-si.com\/tag\/electric-guitar\/\u0027 rel=\u0027post_tag\u0027\u003Eelectric guitar\u003C\/a\u003E\u003Ca href=\u0027https:\/\/mi-si.com\/tag\/ned\/\u0027 rel=\u0027post_tag\u0027\u003ENed\u003C\/a\u003E\u003Ca href=\u0027https:\/\/mi-si.com\/tag\/thinkns\/\u0027 rel=\u0027post_tag\u0027\u003Ethinkns\u003C\/a\u003E"},"acf_fields":[],"readTime":{"min":0,"sec":0},"status":"publish","content":"https:\/\/youtu.be\/1MwwgmKb3tQ?si=LPUlBv_tJPDDaSEy"},{"id":"634","price":"","sale":"","sale_percent":"","link":"https:\/\/mi-si.com\/ns-design-unveils-ns-fin-bass\/","name":"ns-design-unveils-ns-fin-bass","thumbnail":{"url":false,"alt":false},"title":"NS Design Unveils NS Fin Bass","author":{"name":"misiadmin","link":"https:\/\/mi-si.com\/author\/misiadmin\/"},"date":"Oct 2, 2025","dateGMT":"2025-10-02 13:06:19","modifiedDate":"2025-10-02 13:10:50","modifiedDateGMT":"2025-10-02 13:10:50","commentCount":"0","commentStatus":"closed","categories":{"coma":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E","space":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E"},"taxonomies":{"post_tag":""},"acf_fields":[],"readTime":{"min":0,"sec":18},"status":"publish","content":"Mi-Si is honored to be partnering with NS Design in launching new carbon fiber 6-string NS Fin Bass at the Guitar Summit in Mannheim, Germany."},{"id":"151","price":"","sale":"","sale_percent":"","link":"https:\/\/mi-si.com\/martin\/","name":"martin","thumbnail":{"url":false,"alt":false},"title":"Partnership with C.F. Martin","author":{"name":"misiadmin","link":"https:\/\/mi-si.com\/author\/misiadmin\/"},"date":"Jan 25, 2024","dateGMT":"2024-01-25 20:28:33","modifiedDate":"2024-08-20 14:59:04","modifiedDateGMT":"2024-08-20 14:59:04","commentCount":"0","commentStatus":"closed","categories":{"coma":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E","space":"\u003Ca href=\u0022https:\/\/mi-si.com\/category\/featured\/\u0022 rel=\u0022category tag\u0022\u003EFeatured\u003C\/a\u003E"},"taxonomies":{"post_tag":""},"acf_fields":[],"readTime":{"min":0,"sec":36},"status":"publish","content":"Mi-Si Partners with C.F. Martin Mi-Si is pleased to be collaborating with C.F. Martin on the new TKE Tenor Ukulele line. We cannot be but"}]
Simple Jack & power charger with L.R. Baggs acoustic guitar pickup
The Mi-Si Acoustic Trio system features an active, battery-free preamp designed specifically to work with the L.R. Baggs undersaddle acoustic guitar pickup. The preamp for this system 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 up to 16 hours of performance time.
manual
Simple Jack & power charger with L.R. Baggs ukulele pickup
The Mi-Si Acoustic Trio Uke system features an active, battery-free preamp designed specifically to work with the L.R. Baggs ukulele pickup. The preamp for this system 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 up to 16 hours of performance time.
manual
The Acoustic Trio Air is a winning combination of venerable undersaddle pickup system Acoustic Trio with Mi-Si’s all new MEMS microphone based Mi-Si Air. The signals from undersaddle transducer and internal microphone are mixed and controlled by soundhole mounted Pan and Volume potentiometers. This combo provides you with an exceptionally strong, feedback free sound, capturing natural vibrations of body and air of your instrument. Not to mention that it’s light and simple due to battery-free technology and Mi-Si’s industry leading minimalistic design philosophy.
Powering up the Acoustic Trio Air for 60 seconds with the Mi-Si Power Charger will provide you with up to 8 hours of performance time.
manual
Active battery-free preamp & power charger with Kremona pickup
The Mi-Si Acoustic Trio Vio/Mando system features an active, battery-free preamp designed specifically to work with the Kremona piezo pickup for violins. The preamp for this system also uses Mi-Si’s custom piezo linearization scheme. The extremely compact active battery-free preamp is built into a 1/4” Carpenter Jack.
Power up for 60 seconds using the Mi-Si Power Charger and play for up to 8 hours.
manual
The world’s most flexible battery-free preamp
The Align is the single most flexible, compact, and lightweight battery-free preamp currently manufactured. The board’s thickness is just 30 mils thick versus that of the more traditional circuit board that is 62 mils thick. It comes standard with active bass, treble, and volume controls and can be installed virtually anywhere within the instrument.
Like any other Mi-Si preamp, Align requires no batteries and it takes only 60 seconds to charge. A single charge will get you up to 8 hours of active preamp power.
manual
The Align XT is designed specifically to upgrade your Taylor guitar to a battery-free option. The Align XT features Volume, Bass and Treble controls spaced perfectly for an easy retrofit as well as Mi-Si’s unique custom linearization, virtually eliminating piezo “quack”. The output connector is built to match the existing Taylor wiring harness so the endpin jack does not need to be replaced.
The Align XT comes included with L.R.Baggs Element pickup and power charger.
manual
The Mi-Si Crystal is designed to retrofit existing passive pickup systems to make them active. It features a battery-free preamp designed specifically to work with undersaddle guitar pickups using passive piezo elements. The preamp for this system 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 up to 16 hours of performance time.
manual
Battery-free, active system with mix of signals from magnetic soundhole pickup and MEMS microphone for
acoustic guitar
Magpie Air comes with all of the features of Magpie – and provides the signal of onboard MEMS microphone for the most accurate amplification of acoustic guitar.
Powering up Magpie Air for 60 seconds with the Mi-Si Power Charger will provide you with up to 7 hours of performance time.
manual
Battery-free, condenser under-saddle pickup system
Motif is the first capacitive active under-saddle pickup to eliminate the age-old problem of piezo sensor “quack,” the distortion produced by current pick-up systems. Motif’s design is similar in principle to the design of the best-performing condenser microphones. Motif is only 1.3 mm thick and is connected to a state-of-the-art, extremely low-noise class A discrete preamplifier mounted on the endpin jack. The pickup’s mechanical structure provides excellent contact between saddle and bridge.
Like every other Mi-Si product, Motif operates battery-free: a 60-second charge will provide up to 6 hours of playing time.
manual
Same as Motif, but for ukes.
manual