IGS Audio ONE LA 500-Series Tube Opto Compressor


Smooth LA-2A style compression and a plethora of vintage tube warmth built with top-of-the-line components and shrunk down to the 500 series format. 

What we think:

The IGS One-LA fills a gap in that market we've been clamoring for since the emergence of the 500 series format. With a tube device, the problem has always been a lack of sufficient power to the plate. This lack of power results in a starved tube sound that would never work if trying to achieve the true lush and creamy LA-2A sound. By utilizing a double-wide chassis and two separate connection cards that each pull power from the two rack channels, the One-LA solves this problem and delivers the elegant and effortless performance you would expect from a 19" rack processor!

This is not an aggressive, grabby or gritty compressor. What it delivers is smooth, musical, open, and detailed compression - the type that you'd expect from a premium tube opto. I love it's simple, classic layout and never struggle to make it work for my tracks. On vocals, it is masterful! With transparent compression that always moves and flows with all the nuance of the performance, the One-LA avoids a common compression pitfall, unpleasant “gasping”. Same can be said for tracking with bass guitar through it. You get effortless leveling with some beautiful tube warmth, but without any “bloat” in the low-mids that plagues most unworthy and less well-build LA-2A clones. 

IMO there is no better compression type if you're after smooth and musical, and within the 500 series format, the One-LA is just might be the very best we've heard.


Manufacturer Description:

The IGS ONE LA is an opto-compressor built for the 500 series format. It is powered with 250V DC from an on-board voltage converter, so it can be plugged into any 500 series rack equipped with a standard power supply.  

Every single ONE LA is hand made with high quality, matched components (1% metal film resistors, Wima caps). It is equipped with RFT NOS tubes and individually calibrated to give you the unique and unspoiled experience of one of the best opto-compressors in the history - the Teletronix '68 LA-2A. We have spent hundreds of hours designing the ONE LA, to make sure that it is as simple to use as it is versatile. Not only for harmonically rich vocals and strings, but also for huge and beefy drums and bass instruments. Three audio transformers (Sowter and Edcor in audio path and OEP in sidechain) have been used to provide excellent performance and with only two knobs and a single compressor/limiter switch, there is nothing that could go wrong.

Front panel features:

  • VU Meter
  • Limiter/Compressor mode
  • Gain - Output level 
  • Peak Reduction
  • In/Bypass


Year Condition
Call Brand New


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