Michael Pope FlexCore Preamp - Purchased new from Mike but never installed. (6) Knobs & (1) Switch. See photo for control configuration. You will need a total of 7 holes in your control cavity, 6 holes for control pots and 1 hole for the switch. Knobs are not included. To buy this preamp from Pope would be approx $350 shipped in the USA. Price includes shipping in the USA. PayPal accepted.