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Warm Audio WA-1B Optical Compressor

1-channel Tube Optical Compressor
$1,199.00

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Warm Audio WA-1B Optical Compressor
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This article was Written By

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Tube-opto-fueled, Lydkraft-style Compression

The Warm Audio WA-1B delivers the smooth, tube-opto sound of one of the most coveted hardware compressors ever built. This meticulous re-creation boasts an identical control set to the original unit, enabling you to dial in effective dynamics control with ear-grabbing results. The original hardware's velvety-smooth sound and forgiving behavior have made it an industry standard for hip-hop vocals, and the WA-1B follows suit — it's tailor-made for highly dynamic sources, infusing them with a tube-driven analog warmth that's impossible to ignore. It's not just for vocals, either; the WA-1B works its sonic magic on guitars, bass, keyboards, and every other signal it touches. Are you craving world-class, Lydkraft-style compression? You'll be fully satisfied with the Warm Audio WA-1B.

Smooth tube-optical compression

The WA-1B is a spot-on re-creation of the industry-renowned Lydkraft-style compressor. When running it through its paces here at Sweetwater, we found that the WA-1B not only replicates the forgiving nature of the original unit, but it also reproduces the smooth tube-optical warmth that's made the original the go-to compressor for hip-hop vocals, albeit with more open-sounding upper frequencies. In short, if you're having difficulty nailing that sound, the WA-1B is the right compressor to give it to you.

A familiar set of controls

The Warm Audio WA-1B should seem very familiar to anyone who's spent any amount of time with the Danish-built hardware that inspired it. Its Threshold and Ratio controls dial in everything from soft, musical dynamic control to hard-smashing — yet eminently transparent — compression. Its Attack and Release controls are switchable between Fixed and Manual modes, enabling you to employ the natural timing of the compressor's optical element in Fixed mode or a more specified behavior in Manual mode. You get a Fixed/Manual dueling time-constant mode for a hyper-musical release-time curve. You also get an analog meter with Input, Compression, and Output modes and a hard Bypass switch.

Premium components

Crack open the WA-1B, and you'll find a handwired, true-to-spec, 270-volt, discrete analog signal path replete with through-hole components and custom-core Lundahl transformers for full-on Lydkraft-style tone. You also get select tubes from JJ and Tung-Sol and a high-precision optical element for sweet-sounding analog character and unbeatable accuracy. Moreover, the WA-1B was methodically hand-tested and inspected by Warm Audio's world-class technicians in Austin, Texas.

Warm Audio WA-1B Optical Compressor Features:

  • Delivers the smooth, tube-opto sound and forgiving behavior of the industry-renowned Lydkraft-style compressor
  • Boasts an identical control set to the original hardware unit
  • Threshold and Ratio controls dial in everything from soft, musical dynamic control to hard-smashing compression
  • Attack and Release controls are switchable between Fixed and Manual modes
  • Fixed/Manual dueling time-constant mode provides a hyper-musical release-time curve
  • Analog meter with Input, Compression, and Output modes
  • Bypass switch takes the compression circuitry completely out of your signal
  • Handwired, true-to-spec, 270V, discrete analog signal path
  • Through-hole components and custom-core Lundahl transformers yield full-on Lydkraft-style tone
  • Employs select tubes from JJ and Tung-Sol and a high-precision optical element
  • Hand-tested and inspected by Warm Audio's world-class technicians in Austin, TX

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Tech Specs

  • Type: Tube-Optical Compressor
  • Number of Channels: Single channel
  • Controls: Gain, Ratio, Threshold, Attack, Release
  • Threshold: -40dB to 0dB
  • Ratio: 2:1 to 10:1
  • Frequency Response: 5Hz-25kHz (-3dB)
  • Inputs: 1 x XLR, 1 x 1/4" TRS
  • Outputs: 1 x XLR, 1 x 1/4" TRS
  • Sidechain I/O: 2 x 1/4"
  • Tubes: 12AX7 Tung-Sol, JJ 12AU7
  • Rack Spaces: 2U
  • Power Source: Standard IEC AC Power Cable
  • Height: 3.5"
  • Width: 19"
  • Manufacturer Part Number: WA-1B

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Customer Reviews

Write your review
Rated 5/5

WA1B sounds great.

I see a lot of folks online not giving this unit the credit it deserves. This bad boy is solid.
Rated 5/5

This is truly unbelievable!

Got mine last week. The positive reviews and videos were
all correct. But I can see why some people would be angry about this product, especially if you spent almost $4000 for the real thing. This is the real thing! Yes I have worked with A list artist and clients and none of them will care less about whether I use the Tube Tech or the Warm Audio clone. All I know is that this is a game changer! Go Warm Audio, you really went crazy this time!
Music background: Producer/Musician
Rated 5/5

Real Deal.

I've seen a lot people blindly hate on this. But it's a legit awesome compressor. It sounds killer, has that smooth optical compression you expect. People claim the Softube plugin sounds better, while plugin sounds great, for me where the warm hardware beats it is on how it handles the transients and how the sound holds up on heavy gain reduction. Warm Killed it on this!
Rated 5/5

My HONEST review !

After spending roughly a week with it. My personal and absolute honest opinion is this is a beautiful piece of gear I love it on every single thing I've ran through it. Vocals, Bass, Drums . . . I definitely encourage purchasing ( I was going to say this piece of gear but honestly everything warm audio has released has been a solid studio homerun !) Great job WARM AUDIO, again.

- whomixdthatfire
Music background: Audio Engineer
Rated 5/5

Amazing

I own one of these and they are better than what i thought they would be. I also own a tube tech 1b and 2a and the warm audio is super awesome too. i thought i was going to end up selling my later but no, i actually gonna buy another one. in my opinion the only thing warm audio is messing up is their marketing, cause they are an amazing company putting out an amazing product for a really good price. Bryce Young if u need a marketing guy, ill do it for equipment lol jjk
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