'73 BOOST

The '73 Boost is a treble and mid range booster derived from the preamp of a late 60's Marshall Super Lead and a small preamp modification that was reportedly made to Jimmy Page's main Marshall around mid to late 1972. The mod was a simple capacitor change in a filter network, it simply boosted the upper mid range and treble frequencies further. While the pedal is obviously Zep themed, you can cover many other tones with it. The pedal is more complex and dynamic sounding than a typical treble booster design and responds very well to your guitar's volume and tone controls.