Deluxe Bass Big Muff Pi
The Legend Continues
Congratulations! You have just purchased the ultimate harmonic distortion-sustain device
developed to date for the electric bass guitar player: the Deluxe Bass Big Muff Pi! We took our
beloved Bass Big Muff Pi and carefully added select new features to create an even bigger
sounding, more versatile bass distortion. Please review this manual to learn the unique
potential of this pedal.
Features Include:
• Big Muff Knob Layout – Sustain, Tone and Volume
• Crossover Filtering – further sculpt your distorted and dry tones
• Gate – remove unwanted hum
• Input Pad – accommodate active pickups
• Blend – control the mix between effect and dry signals
• DI Output – connect directly to mixing consoles and recording equipment
• Volume – obtain just the right balance between bypass and effect
• Buffered Bypass – high quality buffer with extended low frequency response
• Direct Output – outputs your buffered dry signal for secondary signal chain
The Deluxe Bass Big Muff draws its roots from the legendary Sovtek battle-tank green Big Muff
Pi from the late ‘90s as well as from the original Electro-Harmonix Big Muff Pi from the early
‘70s. The Deluxe Bass Big Muff takes the best elements from both of these classics, employs
sonic elements that were specifically designed for your bass and gives you even more tone-
shaping options than ever before.
CONTROLS
VOLUME – Works as a master volume for the entire pedal and is capable of boosting the input
signal by 14dB above unity gain.
BLEND – This mixes between the dry and distorted signals. Turn this knob fully
counterclockwise for 100% dry signal and fully clockwise for 100% wet signal. Setting the
BLEND knob to noon yields a 50/50 mix of dry/distorted signal.
TONE – Provides a range of sounds from high treble to deep bass on the distorted effect only.
The overall tone filter frequencies were carefully chosen to enhance your bass guitar. As you
turn the TONE knob clockwise the treble response of the Big Muff distortion increases.
SUSTAIN – As in the original Big Muff Pi, adjusts the amount of sustain and distortion.
GATE – Controls the input amplitude needed to open the noise gate. As you turn the GATE
knob clockwise, the amount of gating increases, requiring a louder signal to open the gate and
allow your instrument to pass through. Turning the GATE knob down all the way disables the
noise gate function.
HPF – When CROSSOVER is engaged the signal just prior to entering the distortion circuit is
sent through a second-order high pass filter. The HPF knob adjusts the cutoff frequency range
of the high pass filter from 125Hz to 1.75kHz, with the frequency increasing as the knob is
turned clockwise.
