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Warm Audio WA-2A Optical Compressor
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Warm Audio WA-2A Optical Compressor

1-channel Tube Optical Compressor with All-discrete Signal Path, Custom Optical Photocell, and Cinemag Transformers

Warm Audio WA-2A Optical Compressor

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Product Description

Warm Audio WA-2A Optical Compressor (WA2A)

Warm Audio WA-2A Optical Compressor

Warm Audio's WA-2A set its target high: the most iconic tube compressor in history. How does Warm do it? Through economies of scale, mostly. They don't cut corners on components (the WA-2A employs a custom optical photocell and genuine US-made Cinemag transformers), but they do order parts and build in quantity, which helps to keep costs down. Like the original classic unit, the WA-2A gives you a completely discrete signal path and the same arrangement of controls. And yes, it replicates the original's coveted warm sound and forgiving nature. Elevate your studio to the next level with the Warm Audio WA-2A.


  • Faithful re-creation of the iconic LA-2A Leveling Amplifier in a 2RU chassis
  • Completely discrete, all-tube signal path:
  • Historically accurate 4-tube circuit
  • US-made Cinemag input and output transformers
  • Custom optical photocell

  • Type:Tube/Optical
  • Number of Channels:1
  • Controls:Limit/Compress, Output Gain, Peak Reduction, Gain Reduction
  • Frequency Response:15Hz to 20kHz
  • Inputs:1 x XLR, 1 x 1/4"
  • Outputs:1 x XLR, 1 x 1/4"
  • Rack Spaces:2U
  • Height:3.5"
  • Depth:7"
  • Width:19"
  • Weight:12 lbs.

Dimension Packaging Weight : 7.2 kg

Frequently Asked Questions (FAQs)

Yes! Majority of our product provides a minimum 1 year warranty on the electronic parts.

Definitely! You can contact our sales team through 016-3111286 or head over to Music Bliss showroom to view the item before buying it. We are honored to have you over!

It usually takes only 3-7 working days for the item to be safely delivered to your doorstep. Self-collection and Lalamove (local delivery) is available as well!

Of course! You can head over to Music Bliss showroom for self-collection during our working hours.
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Yes! Please note that the delivery hour for Lalamove service is only available for local delivery, from 11am to 5pm daily. For delivery ,please check out choosing Lalamove/Grab service or contact the mainline 016-3111286.

Customer Reviews

Based on 18 reviews

I just got this and all I can say is wow. I really wasn't sure what to expect honestly and bought this based on reading all the reviews on this one and the history of the original one this is cloned off of. The word that keeps coming to mind is butter. It's like smooth butter on toast. It really seems to just be a perfect fit for tracking vocals, which is mostly what I got it for. I'll probably use it some for guitar and bass at some point too. I'm actually contemplating getting a second one actually! I'm really REALLY impressed. Very happy with the purchase!


This thing is amazing it makes everything sound better. I like to use it right after the WA76 with the 76 set to a quick attack and release. When chained one after another it makes for a very smooth and full sounding vocal. If you are thinking about getting you should.

Amazing Compressor

This thing rules! There are a lot of great videos on YouTube about it and it being compared to more expensive compressors. Paired with Warm Audios WA73 it sounds amazing. I was a bit concerned about how the knobs and switches would feel, they feel good quality no issues at all. I think out of the box the tubes are good quality. It really adds a certain magic to the overall sound.

Bob B.

I do professional voiceovers for a living and have started to transition to hardware vs plugins. While my sound was good prior to adding the WA-2A it's now even better. It just adds that extra warmth and roundness I was looking for. So easy to use even a voiceover dude can handle it. Overall very very happy!

Great on Vocals and Acoustic Guitar

I wish I would have purchased this compressor years ago. Warm Audio products are great. With this in my signal chain I save a lot of time. Place this compressor after a quality mic preamp in your signal chain and you will not be disappointed.

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