GMF Ai1 Acoustic Preamp and D.I. - Direct Box For Guitar and Other Acoustic Instruments - 3in1 Analog DI Box, Direct To Amp Preamp and EQ, Headphone Amp


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gmf ai1 active acoustic preamp di for acoustic guitar and bass gmf has been quietly generating an industry buzz with their new acoustic preamp di. greg farres the original founder and designer of the ultrasound amps line of products started gmf to...

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