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Plus we let you decide if the original noise is on or off. All of these different circuit elements interact, allowing a wide range of tones to be created with just a few simple knobs. Featuring the modeled bass and treble tone controls from the original unit, a mix control for easy parallel processing, and the saturation and harmonic effects of the original hardware’s input and output amplifiers. Radiator brings the classic Altec tube sound to desktop recording rigs, capturing the distinctive warmth and punch of the original hardware. In its day, it was used on many early Motown hits, and found its way into the PA racks of countless churches and school auditoriums across the USA. The sound, by today’s standards, is colored and gritty, with a heaping helping of good old fashion hardware noise. The original Altec 1567A hardware was a rack-mounted five-input tube mixer with removable transformers, a simple two-knob EQ, an unmistakable green faceplate, and a whopping 97 dB of gain.