"Keeley Blues Disorder" is not a medical condition, but rather a 4-in-1 analog overdrive and distortion guitar pedal created by Keeley Electronics.It is part of Keeley’s popular hybrid series, designed to combine the characteristics of two iconic, distinct drive circuits into a single pedal.Key Features

• 4-in-1 Design: Using two mini toggle switches, you can independently swap the Tone and Drive stages between two legendary circuits. This gives you two classic tones and two brand-new hybrid configurations.
• BB Mode (Bluesbreaker): Inspired by the classic Marshall Bluesbreaker (and its boutique derivatives like the King of Tone). It uses soft clipping to deliver a smooth, transparent, low-gain overdrive.
• OC Mode (OCD): Inspired by the Fulltone OCD. It utilizes hard clipping to produce a much heavier, harmonically rich distortion with an active mid-range boost.
• Switchable Bypass: You can easily toggle between True Bypass (for a pure signal path) and Buffered Bypass (to preserve your high-end over long cable runs) simply by holding down the footswitch.
• Voltage Flexibility: The pedal runs on standard 9V but can handle up to 18V for increased headroom and dynamic response.

Pricing and AvailabilityThe pedal typically retails for around $299 CAD ($199 USD) and can be found at major musical instrument retailers such as Long & McQuade, Amazon, and Reverb.Would you like to know how it compares to other pedals in this series (like the Noble Screamer or Super Rodent), or are you looking for tips on how to dial in specific tones?