Sunking bass boost

[12345]

Hi guys
Building a sunking and fancying bass boost ala arc effects . Any advice where the best place to implement this would be? Thanks in advance

[Mike B.]

I think most use the method from FSB. Rig a switch to reduce R14 from 15K to around 1.5k. There are a number of ways to do this - introduce a parallel resistor, put both values on a DPDT, etc.

Also I think Arc uses a trimpot to vary how much that value is reduced.

There are a couple other ways to increase bass as well, like playing around with the 3n9 cap.