[quote name='BOD2' timestamp='1366289010' post='2050545']
I've found that active basses require a slightly different way of looking at things because, unlike a passive bass, they can BOOST as well as cut the EQ.
I'd always advise starting with the EQ set flat. On a passive bass that will be the tone controls full on but on an active bass that's usually the centre position of the controls, often indicated by a little detent "stop" that you feel as you turn the control from min to max. Where you feel a click on the control is usually where the control is set flat - neither cutting nor boosting the EQ.
Once you've got that position, setup the amp/FX for the best sound you can get without touching the onboard EQ.
With the amp and FX setup you're ready to play with the onboard EQ to make fine adjustments to the sound as required. The key is to keep the adjustments small, and if you get "lost" then go back to the flat EQ setting.
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+1 - Sound advice