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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
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Item ID: 4msLoopDel
4ms Looping Delay Eurorack Module
Price:$275 and 00 cents
$46.00 suggested monthly payments with 6 month financing‡

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 May 2026.

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4ms Looping Delay Eurorack Module
We Can Get It Fast!
Price:$275 and 00 cents
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This article was Written By

Our Product Research Team

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Send Your Synths to the Stratosphere

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

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Tech Specs

  • Type: Looping Delay Module
  • Analog/Digital: Digital
  • Effects Types: Loop, Echo
  • Controls: Time Knob, Feedback Knob, Delay Feed Knob, Mix Knob
  • Analog Inputs: 1 x 1/8" (main, L), 1 x 1/8" (return, R)
  • Analog Outputs: 1 x 1/8" (main, L), 1 x 1/8" (send, R), 1 x 1/8" (clock), 1 x 1/8" (loop clock)
  • Other I/O: Ping, Time, Feedback, Delay Feed, Mix, Hold, Reverse
  • Depth: 1.1" (28mm)
  • HP Size: 16HP
  • Power Usage: +12v/125mA, -12V/45mA
  • Power Supply: Requires Eurorack case and power supply
  • Manufacturer Part Number: LD

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