Kelley Boutique F.A.C.S. Pedalboard

The Kelley F.A.C.S. Tube Amp & Ox Box for Amp Attenuator and Stereo DI Feed with Effects


The main role of the Kelley is for the primary classic tube tone and a platform for layering with the Tone King Gremlin

The Kelley pedalboard feeds the premiere top of the line boutique 80's “Dumble” type tube guitar amp. This amp designed and built by Jim Kelley in 1982 was competing with the 80’s Dumble Overdrive Special.

A handful of guitar amp builders were seeking the perfect tube overdrive sound that became popular with the new rock band sound of the 60’s.


Its quad 6V6 power tube output section was split to deliver 30 watts with the two middle tubes and 60 watts with all four. It was sold with a passive resistor-based “Power Soak” place in-line with one of the two channels.

The passive attenuator has been replaced with a more modern “Reactive” load attenuator from Universal Audio, the OX Box. The OX also provides an IR stereo room modeling DI output with programmable Reverb, Delay, and EQ. The settings are controlled using WIFI and either a computer or IOS device.

The pedalboard is a harmonic gain shaping set of five pedals to give the performance:
- A Klon Centaur type soft overdrive with the “M” side of the D & M Drive dual pedal
- A Blues Breaker type distortion with the “D” side of the D & M Drive dual pedal
- The classic OCD provides a full range of shaping from soft clipping to full out distortion
- The JHS Bonsai is a component for component recreation of 7 “Tube Screamers” versions with the original 1978 OD1 that started the whole Tube Streamer craze. The tones are pure analog but the components signal flow switching is a computer-controlled programed digital signal routing. The system creates the original analog signal path with some components values selected from the aged values on the original boxes used for reference..
- The final pedal is an LPD “Amp in a Box” version of the iconic 80’s heavy metal 1987 Marshall sound

The Scumback BM-75 speaker works perfectly to complement the OX Box DI sound when mic’d with the Sennheiser e906 mic.