Roland Rock Posted October 12, 2013 Share Posted October 12, 2013 Both of my amps (Streamliner and all valve 100w) have valve-based EQ. No problems there, as they both sound great. I don't normally fiddle with EQ much, but recently started playing around to get the best tone for various songs when recording. I was surprised at how much twiddling one eq knob could have an effect on the others. For example, totally cutting the treble seems to have a diminishing effect on the bass eq. I could get a suitable tone easily enough, but it's more by trial and error, rather than a logical method. So, is there a science behind what happens with valve EQ? Which one affects the other and how? If I knew this, I'd be able to know what I was doing, rather than twiddling and hoping for the best. Quote Link to comment Share on other sites More sharing options...
LukeFRC Posted October 12, 2013 Share Posted October 12, 2013 it's the design of tone stack rather than the fact it's valves i think Quote Link to comment Share on other sites More sharing options...
Graham Posted October 12, 2013 Share Posted October 12, 2013 This thread came up the other day in relation to the Streamliner EQ - might be of some help http://www.talkbass.com/forum/f15/genz-streamliner-600-900-tone-control-primer-813663/ Quote Link to comment Share on other sites More sharing options...
Mr. Foxen Posted October 12, 2013 Share Posted October 12, 2013 http://www.duncanamps.com/tsc/index.html This tool gives you an eq curve, you can tweak the values to match your amp if you can find a schematic. Quote Link to comment Share on other sites More sharing options...
Prime_BASS Posted October 13, 2013 Share Posted October 13, 2013 Yeah it's biased on the fender tone stack of yester year. The bass and treble at 'flat' are boosted and the mids are scooped. They also interact a fair amount as they have a wide Q. Flat on the streamliner is the treble and bass cut a fair some and the mids boosted. I never really got on with the controls myself, and haven't on any similar designed controls, I.e the OTB. Quote Link to comment Share on other sites More sharing options...
paul_5 Posted October 13, 2013 Share Posted October 13, 2013 That Fender tone stack crops up in a lot of places, most recently a derivative can be found on the LH series amps from Hartke. Quote Link to comment Share on other sites More sharing options...
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