Sound Pure's Take

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.

 

From IGS Audio

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

 

500-series double module, mono unit

+4dB operating level

Original Teletronix '68 audio path

tubes powered by 250V DC

JJ 12AX7 input and RFT NOS 12AU7 output tubes

Sowter input transformer

Edcor output transformer

OEP sidechain transformer

T4B replaceable photocell (for special order)

Power consumption
max 180mA per slot
Input impedance
10k Ohm
Maximum output
+21dBU
Amplification
36dB
Gain reduction
36dB
Frequency response
20Hz - 20kHz, +/-0.1 dB

Potentiometer manipulators

Hard wire bypass

Compressor/Limiter mode

Large VU meter

3 year warranty

Shipping weight
3kg

Free 3-Year Warranty

Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.

Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →

Returns

Not eligible for Try Before You Buy or the 48-hour approval period. Standard return policy applies — see Terms & Conditions, Section 18 for details.

Sound Pure Studios Control Room A — Durham, NC

Sound Pure Studios · Durham, NC

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