Check the listing for details. Universal Audio UAFX Teletronix LA-2A Studio Compressor Guitar Effect Pedal. Condition: New. Listed at 199.00 USD. Universal Audio UAFX Teletronix LA-2A Studio Compressor Guitar Effect Pedal with 2 Free Patch Cables The Universal Audio UAFX LA-2A Studio Compressor Pedal is a masterful emulation of the iconic Teletronix LA-2A optical tube compressor/limiter. This compact stompbox captures the essence of classic studio sound and puts it at your feet, offering the signature warmth and dynamics of vintage tube compression. With its authentic emulation of vintage transformers, tube amplifiers, and the revered T4 optical cell, this pedal delivers rich, three-dimensional tube tones. Its mix control allows for effortless parallel compression effects, while the true/buffered bypass and Stock/Fast attack switch ensure flexibility and ease of use.