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Little Labs LL2A Compressor/Limiter

1-channel Compressor with Stepped Threshold And Gain Controls, Sidechain Insert, and Unbalanced Stereo Operation
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Item ID: LL2A
Little Labs LL2A Compressor/Limiter
Price:$940 and 00 cents
Special Financing - Ends Aug 2, 2026. $27/month with 36 month financing*

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Special-ordered from Little Labs and usually ships to you within 1-2 weeks. Please note: special orders cannot be canceled or returned. Estimated by May 18.

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Little Labs LL2A Compressor/Limiter
Special Order
Price:$940 and 00 cents
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An Innovative Compressor From Little Labs

First off, we’ll address the elephant in the room: aside from controlling levels smoothly and effectively, Little Labs LL2A shares no attributes with a famous compressor bearing a strikingly similar name. In fact, it’s an entirely new — and quite novel — design that uses a single linear analog multiplier in the audio path to provide natural-sounding soft-knee attenuation of the input audio signal. The feature set, however straightforward, does include a very useful sidechain insert jack. For level and gain-reduction metering, the LL2A uses a new-old-stock neon Nixie tube that’s rather reminiscent of a 1966 Ford Thunderbird speedometer! Engineers at Sweetwater have found the LL2A to be well suited for everyday deployment on vocals and full-range material. The Little Labs LL2A’s streamlined 2-knob setup lets you nail great-sounding results quickly, while the high-quality stepped threshold and gain controls make settings recall effortless.

Streamlined control set

Its sidechain insert — a premium feature — notwithstanding, the Little Labs LL2A sports a straightforward 2-knob control set that lets you achieve your desired results quickly. This ergonomic simplicity is by design. There are many feature-laden modern compressors on the market. Indeed, complexity can provide the user a great deal of flexibility. But as we have found putting this gear to the test in Sweetwater Studios, having so much control over every parameter is a double-edged sword, often requiring lots of fiddling around to nail what you’re after. This is definitely not the case with the LL2A.

A versatile workhorse

On the LL2A, threshold and makeup gain knobs and a bypass switch make quick work of dialing in the perfect settings for a majority of everyday compression/limiting tasks. Little Labs chose fixed attack and release times that are optimized for vocals and full-range material. However, there’s a hidden feature that immeasurably increases the LL2A’s versatility: selecting the link button without a link cable inserted slows the attack considerably, making it more suitable for bass and other sources where you want to ensure that the compressor doesn’t clamp down on the front of the notes. Of course, the Little Labs LL2A can be linked for balanced stereo operation with another LL2A, but this compressor has another unique trick up its sleeve: a single LL2A may be used for unbalance stereo operation.

Sidechain insert for flexibility

Every dynamics processor has a sidechain circuit that examines the signal and determines how much it will reduce gain — but not every unit provides access to its sidechain. In compressors without a separate sidechain input, your main input signal is, essentially, compressing itself. With compressors like the LL2A, you can insert external processing on the sidechain — or introduce a different signal that determines the compression action on the main signal. It’s an incredibly useful feature that lets you, for instance, automatically duck a track to make space for another (very popular for that EDM mix pumping effect). The LL2A’s sidechain insert gives you an impressive amount of flexibility.

Little Labs LL2A Compressor/Limiter Features:

  • 2-knob setup with high-quality stepped, resettable threshold and gain controls
  • Fast 400μs attack, 0.9s release soft knee compression
  • 2400μs attack, 4.9 second release for bass: available in standalone mode
  • Minimalist differential circuit topology utilizing only 2 active components in audio signal circuit path
  • Unique linear voltage multiplier gain reduction, voltage-controlled attenuation
  • True VU ballistic, accurate, neon Nixie tube metering
  • Internal state-of-the-art super-low-noise linear voltage regulation
  • 1MHz low-noise high-voltage supply for Nixie tube
  • Linkable for 2 LL2A compressor stereo balanced use
  • Single LL2A can be used for unbalanced stereo: TRS (tip-left, ring-right) or XLR (pin 2-left, pin 3-right)
  • Rear-panel TRS balanced sidechain insert, TS link jack, XLR and TRS balanced mono I/O
  • Rugged half-rack chassis: 2 LL2As may be rackmounted in a 1U space
  • Quality crafted in California, USA
What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

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Tech Specs

  • Type: Compressor/Limiter
  • Number of Channels: Single channel
  • Controls: Threshold
  • Ratio: Soft Knee
  • Inputs: 1 x 1/4" TRS, 1 x XLR
  • Outputs: 1 x 1/4" TRS, 1 x XLR
  • Sidechain I/O: 1 x 1/4" TRS
  • Other I/O: 1 x 1/4" TS (link)
  • Rack Spaces: Half-rack, 1U
  • Power Source: 16.5V DC power supply (included)
  • Height: 1.5"
  • Depth: 7.5"
  • Width: 7.25"
  • Manufacturer Part Number: LL2A

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Reviews

LL2A to Catch Your Eye and Revvv Your Windings
I've had a pair of these for years. They're easy to use. The new old stock NIXIE tube meters are fun to watch. Then one day, I hooked the Little Labs LL2A pair up after my BabyFace Pro FS main outs and sent the LL2A signals on to my Rupert Neve 5042 dual tape, then on again to my Little Labs Monotor and into my favorite studio headphones. Wow. I'll be using the combo for mastering going forward. The Little Labs LL2A output has the same driver at 0.5-ohm output impedance as the Monotor, and the Neve transformers respond magnificently to the supercharged push from the LL2A pair — pure, effortless polish. Crystal for the ears. I can hear detail to discern different bit rates in source material. Voices are more intimate — by ear, I can count how many fillings the vocalist has. I'll be moving some cables around to include the loop as a send / return for mastering final mixes.