SA-2A+ – Analog Tube Optical Compressor

Tube-Driven Electro-Optical Compression & Limiting

Next Batch:SEPTEMBER 2023


The SA-2A+ has new larger custom US made transformers, a US made T4B from Kenetek based on the 60’s UREI T4B’s, the pre-emphasis pot, original VU meter, 3U faceplate and Dry-Wet blend control.

The SA-2A+ is the finest replica of the vintage 1968 Teletronix LA-2A available today. The vintage LA-2A is the most sought after vocal and bass compressor in the world that has been used on thousands of hit songs.

Thanks to Kenetek’s painstaking replica of the original T4B (the heart and soul of this circuit) and custom US made HA-100X and A-24 style transformers the SA-2A recreates every drop of character of the original UREI LA-2A at a fraction of the price.

We have gone to great lengths to faithfully reproduce the compression characteristics and tonality of the original. This is the best LA-2A recreation on the market at any price point.

The SA-2A+ features a Dry-Wet blend control, the original Teletronix VU meter, a 3U faceplate and new transformers that precisely match the ratios and frequency response of the original UTC and premium capacitors

The NOS American and European tubes used in the SA-2A+ surpass the audio quality of any current production tube and are available per request.

Most importantly, the SA-2A+ uses a Kenetek T4B optical attenuator which is the single most important component in the LA-2A/3A family. Handmade and tested by Bill Jones in Kentucky the Kenetek T4B is the closest T4B replica available today to the original UREI T4B.

We have made no compromise in parts which ensures you get the best sounding compression possible. All our units are handmade and calibrated in our workshop in Chile where they get a full health check twice and burn for 48 hours.

While plugins have come a long way and are incredibly useful, there’s a reason the top engineers still have analog gear in their racks.

Stunning on vocals. Amazing on bass. In fact, most things will sound better by just running them through the SA-2A circuitry without even compressing!

Stam Audio Engineering products are about sound quality first and foremost. Every component of every unit is premium quality and carefully selected to ensure our units match or even surpass the quality of high-end boutique gear.


100% satisfaction guarantee – if you don’t love your SA-2A+, we’ll refund you

If you’ve used an original LA-2A before, we’re extremely confident the SA-2A+ will put a big smile on your face every time you use it.

However if you’ve never touched the original before, as gear lovers ourselves we understand that the only way to really know if this compressor is right for you, is to put it through it’s paces. That’s why the SA-2A+ comes with a 30 day money back guarantee. This allows you to get it into your rack and see how it impacts your recordings. If you love it (and we think you will!), great…keep the unit and create amazing music with it. If not, no problems.

Just send it back to us and we’ll fully refund your purchase.

Technical Specs

  • Original 1968 UREI LA-2A Schematic
  • US Made Kenetek T4B
  • US Made HA-100X and A-24 Replicas
  • 12AX7, 12BH7, 6AQ5 Tubes
  • NOS Tubes (per request)
  • Dry-Wet Control
  • Carbon Resistors
  • Vishay Capacitors
  • Original Teletronix Large VU Meter
  • 3U Faceplate
  • 115 and 230 Switchable IEC
  • Hand Made in Chile
  • 2 Year Warranty
  • 5 Year Optional Warranty