Boss SD-1 Super Overdrive with Keeley GE Mod
The SD-1 has great tone to start with. As with all of Robert Keeley’s modifications every component that is added is of the highest quality. Metal film capacitors are used in the SD-1 modification to provide the smoothest mid-range and high frequency. The overall bass response of the pedal has been increased as well. Metal film resistors are used in all of our changes to give each pedal a consistent sound with extremely low-noise. In addition we have improved the BOSS switching making it even closer to true-bypass! The SD1 Ge modification includes a two-way gain switch that lets you select between two different diodes for the clipping/distortion section of the pedal. The “down” position selects a germanium diode (the “Ge” part of the name). The Ge diode clips the signal more than a standard silicone diode. This provides a more saturated, compressed, and smoother sound with more distortion available. The “up” position selects an LED for the clipping section, which clips less, allowing a clearer, more “open” sound, with less compression, more dynamic response, and more available output. Both are asymmetrical and both are an attempt to make the pedal more “tube-like,” since tubes and transformers rarely produce a symmetrical distortion.
FEATURES:
-Better bass response along with true mid range and high frequency transparency
-Asymmetrical clipping for a more tube like distortion
-Two-way toggle switch to go from germanium diode mode for fuzzier saturation to LED mode for a louder, more open tone
-All of these mods make the SD-1 extremely versatile for lead and rhythm players** This is a used pedal and therefore may have cosmetic imperfections and blemishes such as swirls, dings, scratches, etc. not visible in photos. If you are concerned about cosmetic issues please call our shop or come by during normal business hours and we will further describe the guitar.
Any orders cancelled after the shipment has been created are subject to a 15% restocking fee
This is a used pedal and therefore may have cosmetic imperfections and blemishes such as swirls not visible in photos. If you are concerned about cosmetic issues please call our shop or come by during normal business hours and we will further describe the pedal.
Big House Guitars is a brick and mortar store in Atlanta GA open 7 days a week. All items are available for viewing and playing in the shop during regular hours. All guitars are inspected and set up by our in house luthier. Buyers are encouraged to call the shop and ask any questions before placing an order. Please do not hesitate to contact the store directly at 404-254-0190.