Electro Harmonix Germanium 4 Big Muff Pi
The Electro Harmonix Germanium 4 Big Muff Pi is EH's latest Big Muff creation, and will blow your mind with its functionality, massive sound, and tonal diversity. This is a vintage voiced dual channel distortion unit that will ring loud and proud on your board with its rich and warm germanium transistors. The Germanium 4 Big Muff Pi is two independent circuits - one is an overdrive and the other is a distortion and both have two independent controls. These two circuits can be used separate or together for massive effect. Germanium is a classic old school transistor used to incredible effect on classic recordings of the 60's and 70's. Get that old school feel in the 21st century. The Distortion channel precedes the overdrive channel in the chain, and can be adjusted through a bias control that adjusts the signal's character. So go from mellow and compressed to edgy and aggressive with a turn of the knob. The Volts control adjusts the amount of voltage to the Distortion side. So you can also go from a dying battery tone to extreme clipping - add some other EH effects and run wild with creativity. The Overdrive side goes from a sweet fat boost to a super warm overdrive feel. The Overdrive channel has a tone control that will emphasize high or low frequencies. This massive, monstrous Big Muff is a true sonic terrorizer, but it can also give you warm germanium boost tones. With two channels, and plenty of tonal shaping options, EH sets a standard for dual channel stompboxes.
Electro Harmonix Germanium 4 Big Muff Pi
Old school germanium transistors are something special. Their characteristic warmth and richness ooze over many classic recordings. Now Electro-Harmonix gives you two germanium powered overdrive tones in one massive stompbox. The Electro-Harmonix Germanium 4 Big Muff Pi can go from warm boost signals to punishing dying battery sickness with some creative tweaking.
Electro-Harmonix Germanium 4 Big Muff Pi Features:
- Individual overdrive and distortion with the ability to stack them together
- 4 individual Germanium Transistors
- Each mode of drive mode uses its own 2 germanium stack
- Overdrive and distortion can be stacked utilizing four germanium transistors
- Bias and tone control define the tonality in overdrive
- Volts and Bias define the way the distortion will react
- Starving battery sound through volts control adds character
- Battery equipped with optional 9.6DC-200 power supply

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Returns
Download PGS Return Form (104k PDF)
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. We offer a 60-day return policy on all pedals. We ask that you please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received. Pedals returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it. All guitar and amplifier purchases must be returned within 15 days of receiving the unit with all original packaging and materials.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us. We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss.
Returns are processed twice a week, usually within 72 hours of receiving them. Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.
Free International Shipping on Effect Pedal Orders over $400. Use coupon code: INTLSHIP.
*Not valid with other discount codes.
PGS One-year Replacement Warranty on All Pedals
Any manufacturer's defect in your pedal within one year of purchase will result in the replacement of that pedal free of charge
60-day Return Policy on All Pedal Purchases.
Return your new pedal for any reason within 60 days towards another pedal or a full refund
15-day Return Policy on All Guitar & Amp Purchases.
Return your new Guitar or Amp for any reason within 15 days towards another purchase or a full refund
Lifetime Product Support to Original Owner for the Life of the Product
Comprehensive Quality Check and Setup on Every Guitar.
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. Please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received.
Items returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it for pedals and 15 days of receipt for guitars and amps. All guitar and amplifier purchases must be returned with all original packaging and in original condition. Please do not remove the protective plastic coverings on guitars and amplifiers (where applicable) until you know you are keeping the unit. Also, please be aware of the light finish scratches that may occur when playing a guitar from picks, fingernails, shirt buttons, and belt buckles. These are not acceptable on a return so please be careful.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us.
We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss. Returns are processed twice a week, usually within 72 hours of receiving them.
Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.

