Feedback problems with Tonewood Amp

Hi.  I’m trying to use my Tonewood Amp with an old Yamaha 300 acoustic guitar but I’m having feedback problems.  No means of turning down the volume on the guitar though.  ANy suggestions?

What type of pickup system are you using?

Yeah - you need some kind of pickup in order to feed into the Tonewood - tha having been said, have you tried changing its position on the mooring?  I find I get different tones if I have the feedback unit under the bridge, as opposed to under the soundhole - I have mine on a customized Yamaha Guitalele that I ienectro-acoustified myself with a piezo pickup under the bridge 

Ah, start by reducing Master Gain! Some passive piezo pickups with no preamp can be fairly hot!


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