MEGABASS CIRCUIT SCHEMATIC DIAGRAM

MEGABASS CIRCUIT SCHEMATIC DIAGRAM

Note:

•     The input capacitor can be replaced with a .01uf cap if you wish.
•     The 10pf capacitor is optional and will start rolling off everything over 15kHz. 5pf will double this to 31kHz.
•     The tone control requires a low impedence input. If you already have a low impedence input, the input buffer can be removed. However, the output is inverted.
•     The opamp is not critical. A 4558 would be just fine.
•     I do not show the parts for the +4.5 reference. Here is the +4.5 voltage divider I used.