Mattoverse Electronics Warble Swell Echo


Mattoverse Electronics Warble Swell Echo

$199.00

The brand new Warble Swell Echo from Mattoverse Electronics is an analog voiced digital echo/delay with a dynamic foot-controllable Swell feature and gooey modulation. Providing clean echo/delay times up to about 500ms and then noisier analog-esque delay times of up to approximately 800ms with modulation that goes from subtle tape-like flutters to seasick warbles, the Warble Swell Echo is sure to inspire.

Note: The current smaller format version is the same circuit as the previous larger format version, will only be making this smaller format version going forward.

  • Foot-controllable swell feature with swell onset control
  • Vintage echo voicing & gooey modulation
  • True-Bypass
  • Compact enclosure with pedalboard friendly top-mounted jacks
  • Standard Center-Pin Negative 9VDC Power only (not included) - Current draw is approximately 30mA.
  • Enclosure Dimensions - 4.77" x 2.6" x 1.39"
  • 7 Day Return Policy

I do ship internationally, details on the terms and shipping cost can be found by clicking here.

To learn more about what the Warble Swell Echo and how it works, see the demo videos below (the circuit is the same regardless of enclosure size):


If you are in the USA or Canada, you can order through this website.

If you are not in USA or Canada, click here to check the dealers page to see if there is an Mattoverse Electronics dealer near you.  

If there is not a Mattoverse Electronics dealer near you, I do ship internationally, just let me know which pedal(s) you are interested in via the contact form and I will send you a PayPal invoice. 

International shipping rates are as follows:

  • 1 pedal = $37 USPS Priority Mail Shipping
  • 2-4 pedals = $75 USPS Priority Mail Shipping

Sorry, I know it is expensive, but that is what the actual cost is. 

Encourage your local dealers to carry Mattoverse Electronics

  • The buyer is responsible for entering their address correctly through PayPal. 
  • The item will be listed at the purchase price less shipping cost on the customs form.
  • All customs fees, duties, and expenses are the responsibility of the buyer. 

Power All pedals use 9VDC Center Pin Negative 2.1mm Power Supply only.  Use of incorrect power supply voids your warranty.

Warranty Mattoverse Electronics products are warranted against defects in materials or workmanship for one (1) year from date of original purchase. It does not cover damages or wear resulting from accident, misuse, abuse, or unauthorized adjustment and/or repair.

Warranty does not cover scratches or other cosmetic damage resulting from mishandling/misuse, broken/cracked knobs due to mishandling

Failures within 30 days from purchase will be repaired with all shipping charges paid for., after that, the owner is responsible for shipping charges.

For warranty or repair questions, please use the contact form.

Returns Pedals/Synths can be returned for the full purchase price, less shipping, if the return is initiated within 7 days of receiving the item.  

The shipping cost is not refundable.

To receive the full purchase price refund, the pedal/synth most be returned in new condition.  Any signs of wear will trigger a 20% restocking fee.  

Please don't abuse this, I am one guy building pedals.

Disclaimer MATTOVERSE ELECTRONICS SHALL IN NO EVENT BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES SUFFERED BY THE PURCHASER OR ANY THIRD PARTY, INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS OR BUSINESS, OR DAMAGES RESULTING FROM USE OR PERFORMANCE OF THE PRODUCT, WHETHER IN CONTRACT OR IN TORT. MATTOVERSE ELECTRONICS SHALL NOT BE LIABLE FOR ANY EXPENSES, CLAIMS, OR SUITS ARISING OUT OF THE FOREGOING.