The The PRO FET amp heads are fan cooled work horses for "Everyman". The PRO FET III shares many common features with the head of the W-CCL Combo. The 400 watt PRO FET IV is the more powerful unit and is armed with a very practical parametric sound filter which offers simple yet highly effective sound texturing possibilities. In addition, the PRO FET IV is equipped with a graphic EQ and a limiter. Both processors are selectable in any combination and the graphic EQ section can be footswitch activated. Both the top-of-the-line PRO TUBE IV and PRO TUBE IX* models boasts dual channels. The pre-amps for Channel 1 use high voltage tube technology. Equipped with the new parametric tone filters from the PRO FET IV they offer the ability to create just the right tone in any environment. The Warwick line of amplifiers is perfectly complemented with a top line of professional enclosures.