Electro-Optical Compressor / Limiter with Tube Circuitry
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Universal Audio Teletronix LA-2A Classic Leveling Amplifier
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Enhance Your Music with the Iconic Tube Compressor
It's perhaps the most iconic piece of outboard gear ever. You've heard it on countless hit records — the legendary LA-2A. Patch your signal through it, and magic happens. First introduced in the early 1960s, the Teletronix LA-2A Leveling Amplifier fast became a staple in the racks of recording and broadcast studios large and small. Today, the Universal Audio LA-2A is crafted to original specifications in Scotts Valley, California, handwired point-to-point, with every component carefully selected for authenticity. Smooth, natural, and eminently musical, the legendary LA-2A's tube-driven electro-optical attenuation circuit delivers instant gain reduction with zero increase in harmonic distortion, massaging audio like no other compressor you've ever used. Every serious studio needs at least one.
Related Videos: Teletronix LA-2A Classic Leveling Amplifier
An audio legend at work
We at Sweetwater can attest to the fact that there's no shortage of LA-2A plug-ins — testimony to the hardware unit's enduring relevance, sonic appeal, and dynamics-control prowess. A studio staple for over a half century, the LA-2A continues to captivate new generations of retro-seeking audio pros with its uncanny ability to work its magic on synth bass and 909 kick samples, in addition to its decades-long dominance as the non plus ultra compressor for vocals, bass, drums, guitars, and anything else you might care to feed it. Its this program-dependent quality, combined with its 2-knob ease of use, that has made the '2A an intrinsic part of the very fabric of pro audio.
You can't make it sound bad
Top artists, engineers, and producers prize the LA-2A for its subtle, alluring warming qualities. This compressor can be as transparent as needed on vocals, but you can also hit it hard for sizzling overdrive that will pump up a lackluster guitar like a dimed tube stack. It's brilliant as a permanent fixture in your vocal compression chain. In series with another compressor (the 1176 is a popular choice), the LA-2A helps deliver silky-smooth vocals. Hit the '2A hard to smooth out the largest peaks, then run the signal through the 1176 to tidy up. Experiment by reversing the chain. It's impossible to make the LA-2A sound bad.
Still going strong
In the early 1960s, Jim Lawrence, founder of Teletronix, started using photocells to control audio gain in an innovative, groundbreaking optical compression design that far surpassed the transparency and stability of earlier circuits. Universal Audio's founder Bill Putnam later acquired the patented technology and continued to manufacture the LA-2A through the '60s. These units became pro studio staples in the 1970s, and in 2000 UA released a reissue. Meticulously engineered to original specs, the acclaimed tube-amplified T4 electro-optical compressor reissue takes its place alongside the countless vintage units still in daily service in top audio facilities around the world. There may never be a more iconic dynamics processor.
Universal Audio LA-2A Tube Compressor/Limiter Features:
- Dial in legendary optical tube compression on vocals, bass, drums, and more
- Record your tracks through legendary vintage-spec tube circuitry
- Enhance your music with iconic warmth and tube limiting/compression
- Simple, easy-to-use controls: gain and peak reduction knobs, limit/compress switch
- Track and mix with a piece of audio recording history
- Faithful to the original in design, manufacturing, and performance
- Distortion- and lag-free optical attenuation system
- Distortion: under 0.5% THD
- 0dB to 40dB gain limiting
- Balanced XLR input and output
- Frequency response 30Hz-15kHz (+0/-1dB)
- Output level: 10dBm; Gain: 40dB
- Low noise: 70dB below +10dBm output level
- Handcrafted in UA's Scotts Valley, California labs
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Tech Specs
- Type: Optical
- Number of Channels: 1
- Controls: Gain, Peak Reduction
- Frequency Response: 30Hz-15kHz (+0/-1 dB)
- Inputs: 1 x XLR
- Outputs: 1 x XLR
- Rack Spaces: 3U
- Power Source: Standard IEC AC cable
- Height: 5.25"
- Depth: 7.25"
- Width: 19"
- Weight: 13 lbs.
- Manufacturer Part Number: LA2A
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lifelong fav
Really, really good...and I'm picky
I'm very impressed especially with UA's repro UTC transformers they use on this. Very close to the old ones. Just a touch more character on the old ones, but very close and it's not a matter of better, just a touch different (I'd say cleaner).
I can tell you the old Aerovox caps have a LOT to do with getting this unit to sound like the originals, very easy to change those. As I said the transformers are very close, and if you want the old grey paint sound (my fave) you can disconnect that high freq. compression pot, that will give it more depth and will be much closer to the original grey paint spec.
Anyway, very, very good! Stock thus unit is pretty close to vintage, I'd say much closer that the new pultecs are to vintage. It's timeless, won't become obsolete with the next software upgrade, and easiest thing in the world to work on.
And I'm very picky!!
The Real Thing
Until you actually use one and hear the difference it makes on a track or buss it is hard to understand the versatility of this Swiss Army knife of the audio industry. Thing is you have been listening to it all of your life because it is used on almost every hit record you have ever heard.
LA-2A...everything sounds better through it!
A classic for good reason.
It's amazing on vocals. Amazing on bass. 2 of them on the mix bus sounds heavenly.
This is probably the single greatest compressor ever designed. No serious studio should be without one.
It is one of the few "makes everything better" boxes out there. Just running tracks through it with no compression adds vibe.
I'm in love with this compressor.
See also:Compressors, Universal Audio, Universal Audio Compressors / Limiters