The Richie Kotzen Signature Killer Wail features a spring-loaded rocker that returns to its resting/bypass position when you remove your foot from the pedal and automatically engages when you press forward on the pedal. Additionally, the RK Signature Killer Wail is phantom power operable via Richie’s Signature RK5 v3 Fly Rig.

The Killer Wails preserve the original tonal integrity of vintage wahs and overcome familiar shortcomings, such as excessive noise and unreliable mechanical parts. Utilising light sensor technology, there are no clunky pops, no irritating scratching sounds, and no pots to wear out. Machined from solid billet aluminium, the heavy-duty housing will provide long life, on and off the road.

Rather than utilising simple band-pass or low-pass filters, the Killer Wails faithful emulation uses a specially-designed filter. It not only changes the frequency, but it also changes the Q, which is the sharpness of the filter.

Both Killer Wails are phantom operable via both the Fly Rig 5 v2 and Richie Kotzen Signature RK5 v2 Fly Rig, with a modification to the Fly Rig. Details are available from Tech 21.