Chargers for Mi-Si Battery-free Internal Preamps


The Mi-Si rechargeable battery-free preamps sold by AMT include an AC charging adapter, which can be plugged into an AC outlet and connected to the preamp's output jack for 60 seconds to fully recharge its on-board SuperCap power supply -- providing up to 16 hours of playing time before needing to recharge.


Mi-Si Preamp AC Charger



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Custom AMT Mi-Si Preamp for Fishman Pickup

Now available only from AMT is a rechargeable batteryfree Mi-Si preamp that's been specially modified to obtain improved sound from Fishman's passive Nashville bridge insert reso pickup.  This unique charge amplifier preamp design substantially reduces the pickup's non-linear distortion and provides an active, buffered output which minimizes effects of cable capacitance while also providing better signal level matching between the pickup and Aura pedal.


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