Undertone Audio
Striving to fulfill needs and solve problems of todays record makers, UnderTone Audio has been created as an outlet for these ideas to be available to studios, engineers, mixers and producers all around the world.
Flagship products
Undertone Audio UnFairchild 670M II
The Fairchild circuit could be one of the most coveted and time tested compressors of all time. It has proven its extraordinary universal musicality for over 5 decades on countless genres of music. The beauty of its design is in its simplicity. The audio path, primarily consisting of only 2 transformers and 4 paralleled vari-mu tubes, can provide a gentle smoothing of levels or an explosive, energizing compression that will make any recording leap out of the speakers. The UTA UnFairchild is a painstaking recreation of the classic sound of this circuit.

There are a few limitations of the original Fairchild that we set out to address. First, we have made careful adjustments to the circuitry that greatly improve the lifespan and reliability of the tubes. Additionally, we've added a whole host of exciting new features that have never before been available on a Fairchild. The UnFairchild sports 6 original preset Time Constants and 4 variable Time Constants (attack and release), MS function, side chain processing, a true bypass, fine adjustment of left/right balance, user adjustable "DC Threshold", and "Feed-Back" vs. "Feed-Forward" functionality. With the UnFairchild, we've made this extraordinary circuit flexible enough to handle pretty much every compression task on any style of music.
Undertone Audio UNFa-1
The UNFa-1 Accessory is an add-on to the UnFairchild 670m mkII vari-mu tube compressor/limiter. It adds a whole new world of flexibility and function to the already versatile recreation of the Fairchild circuit. There were certain features that didn’t make sense to have included in the UnFairchild design because it would have strayed too far from the mission of faithfully recreating the original Fairchild circuit. Being outside the boundaries of the original Fairchild circuit doesn’t make these new features any less desirable. An optional add on product was and is the perfect solution. With these added features, UnFairchild users can have an authentic hardware recreation of the legendary vintage musicality of an original Fairchild WITH a level of control and flexibility that many plugins don’t even offer. It is truly unfair.
Undertone Audio MPDI-4
The MPDI-4 is as musical as it is powerful and flexible. It features 4 individual Mic Preamp/DI circuits housed in a single 1RU chassis. With by-passable transformers, switchable output headroom, and adjustable THD characteristics, the sound of the MPDI-4 can range from astonishingly pristine to warm, thick, and harmonically colorful. It may well be the only preamp that is truly perfect for every situation!
Also available from Systemes Guinois
©1984-2022 - All Rights Reserved. Systemes Guinois Inc.