¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701
(800) 222-4700 Talk to an expert!
Press Space or Down Arrow to open the quick shopping cart menu. Press Escape to close the menu and return to the Shopping Cart link.
Loading Cart
Your Cart Is Empty

See what's new at Sweetwater.

My Cart this.cartQty

4ms Looping Delay Eurorack Module , $275.00 - Add to Cart Skip to Product Information

4ms Looping Delay Eurorack Module

16HP Eurorack Delay Module with Looping, Tap Tempo, Clock Sync, Reverse Functionality, Infinite Hold, Send/Return Loop, Stereo Operation, and CV Control
Be the first to review Item ID: 4msLoopDel
4ms Looping Delay Eurorack Module
4ms Looping Delay Eurorack Module

We Can Get It Fast!

While this isn't an item we normally stock, we can still get it to you as fast as possible due to our great relationship with 4ms. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated September 10, 2026

Ask An Expert Our Expertly trained Sales Engineers are ready to help! What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

4ms Looping Delay Eurorack Module
We Can Get It Fast!

While this isn't an item we normally stock, we can still get it to you as fast as possible due to our great relationship with 4ms. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated September 10, 2026

Send Your Synths to the Stratosphere

This article was Written By

Our Product Research Team

Get to know them!

Since their inception in 1996, 4ms has remained at the forefront of Eurorack innovation, serving up a smorgasbord of serious sound-shaping sorcery. With their 16HP Looping Delay module, you can take your synths to the furthest reaches of the intergalactic or the esoteric, boasting a streamlined interface with a deceptive depth of possibilities, allowing for up to 87 seconds of delay or looping time in mono mode, and 43 seconds in stereo. Audio is recorded at a staggering 48kHz/24-bit sample rate to ensure loops and textures are always expressed at the utmost quality, with variable ranges from eight notes to 32 bars in length assignable with the clock sync. Plus, the rich, digital feedback can reach values of 110% to create lush, regenerating soundscapes or brash, experimental noise, wonderfully complemented by the reverse function. Eurorack synthesists at Sweetwater love the “window” feature that can be activated with the module’s infinite loop mode, letting you scroll the memory of the loop in real-time, via knobs or CV, shifting to create a completely new caliber of delay-based looping musicality!

4ms Looping Delay Eurorack Module Features:

  • Variable delay and loop times can be programmed with tempo sync, from 1/8th notes to 32 bars, allowing for pinpoint musical precision
  • Audio is recorded at 48kHz/24-bit sample rate for unmatched accuracy in delay-generation and loop-crafting
  • Loop duration maxes out at 87 seconds in mono and 43 seconds in stereo, granting plenty of flexibility to accommodate your style
  • Deep CV integration includes send/return loops, all manual controls, and full clock and tempo control
  • Versatile digital feedback can reach values of 110% for regenerative loops, Karplus-Strong effect, and more
  • Reverse functionality and infinite hold modes can be activated manually or via trigger input, allowing for immense performance opportunities for live, improvised, or studio synthesis
  • “Window” function lets you scroll the active loop in real-time when infinite hold is engaged, increasing diversity of recorded samples

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.