kedo Posted April 12, 2014 Share Posted April 12, 2014 I have been suffering with feedback on my DB. It tends to occur on the G string about Bb when the note 'swells'. It is impossible to set the volume to a good level for a big gig. Careful placement of my Markbass P121 combo and 1x12 New York extension speaker (away from a wall and definitely not in a corner) can help, as can the proximity of bass to amp, but there is nothing I can set on the amp EQ which completely eliminates this nuisance. The Bb also 'swells' when I play it on the D string. This is not a problem when I play the bass acoustically, but my Stentor Elysia is a fairly quiet instrument. Previous Basschat postings on this subject have resulted in an overwhelming recommendation that a 'Fishman Platinum Pro' bass preamp is the answer. Has anyone got any further advice. I have a SH950 Shadow pickup (the double one) and don't use a preamp at present. Quote Link to comment Share on other sites More sharing options...
BassBus Posted April 12, 2014 Share Posted April 12, 2014 It sounds like there is a particular frequency of EQ that resonates with the Bb, if that makes sense. It's probably a frequency your amp doesn't have. The Fishman gives the chance to dial out some of that resonant frequency. Other multi-band EQ pedals can do the same. It's really a matter of finding the offending frequency and dealing with it. Quote Link to comment Share on other sites More sharing options...
kedo Posted April 12, 2014 Author Share Posted April 12, 2014 Thanks for that. I'm just about to order one from GAK and thought I would do a little more research. It does seem like part of the answer. Quote Link to comment Share on other sites More sharing options...
Beer of the Bass Posted April 12, 2014 Share Posted April 12, 2014 If it's a particular resonance from the bass, you might be able to control it by dampening the afterlengths and tailpiece. For a while I played with a very loud band and I would dampen the afterlengths with a piece of plastic tube woven between the strings. What made the biggest difference was stuffing a rolled up scarf between the tailpiece and top, which some people use a foam sponge for. It would be worth trying these things before springing for more bits of gear! Quote Link to comment Share on other sites More sharing options...
Jezyorkshire Posted April 12, 2014 Share Posted April 12, 2014 you need a pre amp with a notch filter and high pass filter and a phase switch ideally Quote Link to comment Share on other sites More sharing options...
Hector Posted April 12, 2014 Share Posted April 12, 2014 Plat pro will likely sort you out, and it's a useful bit of kit regardless. Better check to see if there's one in the for sale section here rather than buying new? Might save you a few quid. Quote Link to comment Share on other sites More sharing options...
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