Originally Posted by xeonblade
Ok the point was cutting the crap before signal hits the amp. Nothing I asked was really answered. And I'm talking about passive filter.
That's what I'm saying, passive or not, it's not adjustable. That is an issue. You may be cutting some good stuff. Even if you do a typical roll-off from 100 down, you may want that back if you find yourself in a band with no bass, or a band with just one guitar, you may want to roll off from say 80 down instead. In theory it's a great idea, in practice it's not as great.