Black Lion Audio B172A Hybrid FET/Optical Compressor - A Fusion of Iconic Compression Styles

The Black Lion Audio B172A stands as a unique hybrid, blending the revered characteristics of the '76 FET limiter and the '2A tube optical compressor into a single 2RU chassis. This unit is not just a combination of two legendary compressors; it's a versatile tool that enhances the audio processing capabilities of any studio setup.

Key Features:

• Dual Compressor Design: Integrates the Seventeen version of the '76 FET limiter with Black Lion's interpretation of the '2A tube optical compressor.
• Flexible Signal Routing: Features an A/B, B/A, and Independent signal routing switch on the faceplate, offering unparalleled flexibility in signal processing.
• Custom T4B Opto Element: Includes a custom-designed T4B optocell, specifically crafted for optimal performance in this hybrid setup.
• High-Quality Transformers: Equipped with a Cinemag input transformer on the '2A side and Chicago-wound output transformers for both circuits, ensuring top-tier audio fidelity.
• Stereo Link Capability: Can be linked in stereo, ideal for consistent compression across stereo tracks or buses.
• Versatile Use Cases: Ideal for catching audio peaks with the FET side and providing heavy compression with the opto side, either separately or in series.
• Premium Components: Built with high-grade signal path and power decoupling capacitors for a clean and reliable audio performance.

Technical Specifications:

• Type: Hybrid FET/Optical Compressor
• Number of Channels: Dual-channel (Seventeen and 2A-style)
• Controls: A/B, B/A routing, stereo link, individual compressor settings
• Inputs/Outputs: Standard XLR and 1/4" inputs and outputs
• Transformers: Cinemag (input), Chicago-wound (output)
• Rack Spaces: 2U

The Black Lion Audio B172A is a testament to the innovation in audio engineering, offering the best of both worlds - the aggressive, punchy character of a FET limiter and the smooth, lush tones of an optical compressor. It's an indispensable tool for engineers and producers looking for that classic compression sound with a modern twist.

Black Lion B172A Hybrid 76 FET & 2A Optical Classic Compressors in One

Two classics in one chassis, the B172A marries the Seventeen version of the legendary “76” FET limiter with their take on the renowned “2A” tube optical compressor. Whether you use the FET and opto separately — or in series, where one catches the audio’s peaks and the other provides the heavy compression — the B172A will blow you away with its incredible sound and versatility. The B172A’s Dual Mono Link makes it easy to route your signal through the 17 and 2A circuits in any order. Painstaking effort went into choosing the best transformers needed for each circuit. Spec’d with a CineMag input transformer on the 2A side, BLA’s own Chicago-wound output transformers on both circuits, high-grade signal path and decoupling capacitors, the B172A gives you ultra-convenient access to a pair of classic dynamics processors while also providing a valuable signal processing tool never before available in a single chassis.

Every so often, two incredible things, wholly enjoyable on their own, combine to form a pair so sweet and complementary, that it becomes hard to think of one without the other… Sonny & Cher, Lennon & McCartney, Snoop Dogg & Dr Dre and perhaps the greatest and most literal “dynamic duo” of all time – the 1176 and LA-2A!

The 1176 and LA-2A when used together, have become a studio stable for decades, often wired in series with each other so that one catches the audio’s peaks and the other does the heavy compression. Black Lion Audio, having hit the mark with the widely adored Seventeen compressor, has struck again, combining the Seventeen’s FET circuitry with a worthy optical section in the B172A! This unit combines the two separate ’76 and 2A circuits into a single unit that allows you to route the signal in any order you like to be able to provide this very useful compression technique.

The Seventeen’s success put pressure on BLA to pair the already proven FET side with an equally formidable optical mate. The challenge was met on the B172A through the creation of a custom T4B “opto” element called the “T4BLA”. BLA’s lengthy experience in modifications lent designers the proper patience and mindset to tweak subtleties in the optical element until it was a supreme asset in the design. With a heavy attention to detail and design, the T4BLA is designed to be the single best T4B optocell available today.

Flexibility was a main goal of the B172A since its initial concept. While many engineers agree on the benefits of using both compression types, the order in which to do so is still debated. The AB-BA switch on the B172A allows for quick internal routing of the signal. The two compressors can also be used completely independent of each other when utilizing the 3rd position (link off) on the AB-BA switch. Each circuit also has stereo linking so a pair of B172A’s can be used in stereo.

As always, a painstaking amount of time has been spent on choosing the best possible transformers needed for the circuit. Featuring a CineMag input transformer on the LA-2A side, BLA’s own Chicago-wound output transformers on both circuits, high-grade signal path and decoupling capacitors, the B172A gives studio owners ultra convenient access to a pair of high quality dynamics processors that have stood the test of time while also providing a tool never before available in a single box.

• 76- (Seventeen) and 2A-style compression in a single 2RU chassis
• A/B, B/A, and Independent signal routing switchable on faceplate
• CineMag 2A input transformer
• Chicago-wound 76 and 2A output transformers
• Custom-designed Black Lion Audio T4B opto element
• High-grade signal path and power decoupling capacitors
• Stereo linkable