Burl Audio BC5000 BIGFOOT Optical Compressor

The Burl Audio BC5000 BIGFOOT Optical Compressor is a solid‑state optical compressor with limiter that combines all‑discrete class‑A transistor circuitry, switchable BX1/BX5 input‑output transformers, a fast FET limit circuit, side‑chain low‑cut, integrated de‑esser and a 10 kHz high‑frequency boost for unrivalled versatility on any source.

Core Architecture

The BC5000 utilises a solid‑state optical element that imparts a musical, natural compression characteristic. The signal travels through a fully balanced, end‑to‑end path built from discrete class‑A transistors, guaranteeing an ultra‑low noise floor and pristine fidelity. The input stage mirrors the acclaimed BAD4M Mastering Analog circuit, featuring audiophile‑grade stepped attenuators for exact gain setting. The output stage follows the BDA4M Mastering Analog design, offering stepped threshold, attack, release and ratio controls that let engineers shape dynamics with surgical precision.

Classic Heritage Meets Modern Innovation

BURL Audio preserves the timeless tonal warmth of vintage optical compressors while upgrading every component for contemporary studios. The classic optical cell works in tandem with a newly engineered fast FET limiter, allowing a seamless shift from gentle compression to hard limiting without audible pumping. Switchable BX1 and BX5 transformers retain the warm colour of classic hardware yet provide the flexibility to engage or bypass them according to the mix’s needs.

Flexible Side‑Chain and Tone‑Shaping

A selectable low‑cut filter sits in the side‑chain, protecting bass and vocal fundamentals from unnecessary attenuation. An integrated de‑esser removes sibilance with a single press, while a dedicated 10 kHz high‑frequency boost adds sparkle to dull recordings, eliminating the requirement for external processors.

Control Layout

The front panel presents stepped attenuators for both input and output, followed by stepped controls for threshold, attack, release and ratio. A hard‑bypass switch enables the unit to be removed from the signal chain instantly, preserving the original sound when the compressor is not needed.

Why Choose BC5000 BIGFOOT

• All‑in‑One dynamics suite: Compresses, limits and de‑esses within a single rack, streamlining workflow.

• Transparent musical character: Optical compression paired with class‑A circuitry yields natural dynamics without harsh artefacts.

• Robust professional build: Discrete transistors, premium transformers and a rugged chassis guarantee reliability in demanding sessions.

• Tailored tonal shaping: Switchable low‑cut, high‑boost and transformer options let users fine‑tune the sound to any source.

• Ideal for mixing and mastering

• Solid‑state optical compressor with limiter
• All‑discrete class‑A transistor circuitry
• Fully balanced end‑to‑end signal path
• Switchable BX1 input transformer
• Switchable BX5 output transformer
• Fast FET limit circuit
• Side‑chain low‑cut filter
• Integrated de‑esser
• 10 kHz high‑frequency boost
• Audiophile stepped attenuators for input and output
• Stepped threshold, attack, release and ratio controls
• Hard bypass function

This item, like everything we supply, comes with the complete support of our expert team. Our excellent technicians have been specifying, building and supporting studios for over twenty years. If you have any problems with installation, setup or everyday use, they’re never more than a click away, and always happy to help.

You can contact them here.