Program Equalizer and Microphone Preamplifier
Eighteen’s preamplifier circuit isn’t just another clone, but an original design built to pay proper tribute to some of the most classic designs ever made. The Eighteen starts with a Cinemag input transformer, but that’s far from where the magic stops. In order to get the absolute perfect sound we were looking to achieve with Eighteen meant a bit more work under the hood. This is where our new BLA1831 custom, discrete op-amp comes into play. Through an extensive period of component matching, we were able to create a custom op-amp that matched the vibe we were aiming for, while still matching a noise floor that is akin to modern equipment. The preamplifier also features polarity inverse, 48V phantom power, an 80Hz high-pass filter, and a 10kHz low-pass filter.
Young brain. Old heart. It’s Eighteen.
The Eighteen isn’t just a response to the fanfare of our Seventeen FET compressor — it’s a part of our dedication to create new homages to our favorite vintage products. Eighteen starts with a vintageinspired preamplifier, providing a creamy, yet punchy response. We’ve topped that off with a passive inductor-based program equalizer, and outputs controls for pushing the analog stages to pure overdriven-bliss. Black Lion Audio’s Eighteen: designed, engineered, assembled, and tested in the USA.
A timeless, passive inductor equalizer.
Eighteen packs an impressive, original passive inductor-based equalizer, that you’re sure to love. While creating this circuit, we realized that any “off-theshelf” inductors simply wouldn’t do. That’s why we teamed with Cinemag to create a custom inductor just for Eighteen! The results are amazing; a quiet and ultra-flexible equalizer that packs all of the vibe of your favorite program-style EQ’s. Eighteen features 2 bands of EQ, as well as a low-pass shelving filter.
Its design inspired by a legendary vintage American console mic preamp, the API 312A, the B12A Quad four channel microphone preamplifier packs a massive punch. With its transformer-coupled input and output stages and 70dB of gain on tap, the B12A Quad serves up heaping portions of low-noise headroom. Now you'll finally be able to use your low-output ribbon mics on quiet sources! The B12A Quad imparts a bold sonic assertiveness that beefs up any signal you pass through it.
Meet the Black Lion Audio B12A mkIII — the most portable 312A American-sound around! The B12A mkIII uses the same Cinemag input and output transformers as our B12A Quad for a whopping 70dB of gain. A front panel D.I. delivers a harmonically rich tone to guitars, keyboards, and synthesizers, and stepped input gain allow for perfect recall.
The B173 Quad (four channel mic pre) packs a massive punch, delivering the muscular lows, assertive mids, and glossy highs characteristic of a vintage 1073 in a budget-friendly 2RU unit. The B173 Quad features high-end parts and discrete Class A circuitry with transformer-coupled input and output stages. With 70dB of gain on tap, the B173 Quad serves up heaping portions of low-noise headroom. Now you'll finally be able to use your low-output ribbon mics on quiet sources! The B173 Quad imparts a bold sonic assertiveness that beefs up any signal you pass through it.
Meet the Black Lion Audio B173 mkII — the most portable 1073 British-sound around! The B173 mkII uses the same Cinemag input and output transformers as our B173 Quad for a whopping 70dB of gain, a revamped gain stage, and a lower noise floor for cleaner, lower distortion sound. A front panel D.I. delivers a harmonically rich tone to guitars, keyboards, and synthesizers, and stepped input gain and variable output attenuation allow for perfect control over transformer saturation.