[quote name='ardi100' post='710538' date='Jan 12 2010, 08:34 PM']Thanks, I was thinking if the feedback came from mids I could isolate the frequencey and shut it down. I might have to have a play with one and see.[/quote]
I don't think it would cut the frequency precisely enough without taking out a lot of the tone you probably need more of a notch filter. I could be wrong though.
However I can report though that I used my ADI21 as a DI box for the first time tonight at a jam night to plug my ABG into the PA & it performed well. No other bassists (& hardly any other musicians) turned up so I was playing for most of the evening. I wasn't troubled by feedbackat all, but not because of the ADI21, but I was using a feedback buster - rubber disc thing that plugs into the soundhole - if only they made f-hole shaped ones as well for DBs...