Earthquaker Devices Rainbow Machine
The Rainbow Machine from Earthquaker Devices is a polyphonic harmonizing modulation machine. Utilizing a modern digital signal processing and modern oscillation circuitry The Rainbow creates some real time pitch shifting, but not in the way you are probably used to. The Rainbow Machine will put a new twist on your playing by adding polyphonic harmonies, wild pitch take offs and descends, chaos chorusing, pixie trails, and transformations before your very ears. With the ability to shift from a 4th down through a 3rd up (including a stop at every atonal station in between) the Rainbow Machine tracks perfectly up and down the neck without any of the typical glitch out. Need an accompanying octave with your harmonies? The Rainbow 's got it, and we haven 't even talked about the Magic yet. The Magic is the true soul of this effect with its ability to add weirdness where there was none before. If you need an actual technical description, it 's a regeneration control that creates aliasing between a mix of the primary and secondary functions feeding back against each other. It has to be heard to be believed.
The Earthquaker Devices Rainbow Machine features six controls for maximum strangeness. The pitch control controls the pitch of the harmony. With the control fully clockwise is a 3rd up, all the way counter clockwise is a 4th down. The Primary control adjusts the volume of the pitch shifted signal (unity is about 2 O 'clock). The Secondary control adjusts the volume of the secondary pitch shifted signal. The Secondary signal is equal to the original at noon, with a full octave up or down at its extremes. The Tracking control is the amount of Lag time between the dry and the shifted signals. With the Tracking all the way clockwise the shift will occur simultaneously with the dry signal. The Magic varies significantly with the setting of the controls, and produces a vast array of signal transformations that I couldn 't begin to describe. The Tone control puts the power of space-time and string theory in your handswait, no I was kidding, it controls the tone.
Rainbow Machine Features:
- All Analog Dry Signal Path
- Expression Control Jack
- Activate Switch
- Magic Switch
- Pitch Control
- Primary Control
- Secondary Control
- Tracking Control
- Magic Control
- Tone Control
- True Bypass
- 2.1mm regulated 9v

Shipping
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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.

