The LaChapell Audio Model 983S is a two channel tube mic pre featuring the innovative True48™ dynamic phantom power supply. True48 improves the performance of your condenser mics. Current 48V supplies dip in voltage as the source load changes (such as periods of high transients on many mics). True48 evens out the voltage supply, giving mics greater headroom, quicker transient recovery and a smoother less distorted response.
Each channel on the LaChapell Audio Model 983S features a Cinemag input transformer, an ECC83/12AX7 vacuum tube, Jensen output transformer and Burr Brown & THAT Corporation line drivers. Each component in the signal path is of the highest quality, carefully selected to sound beautiful and last long.
This mic pre is capable of stunning clean tones and harmonically rich tube-driven tones. Exceptional on nearly any source, the LaChapell Audio Model 983S features high and low pass filters with selectable roll-off frequencies, channel mute, front panel Hi-Z input, pad and polarity switches.
LaChapell Audio Model 983S Features
- DUAL DRIVE KNOBS The Dual Drive knobs on LaChapell’s preamps provide an infinite array of tonal options. Favoring the input knob increases the signal going to the tube, resulting in more harmonics and overall distortion. Favoring the output knob yields a very clean signal. Together, you can dial in sounds from pristine to warm and harmonically rich.
- VERSATILE TONE WITH PAD The pad switch not only provides a -20dB gain reduction for high input sources, it also works with the Dual Drive knobs to create color and headroom options. Engage the pad to dial in warm tones with lots of headroom.
- TRUE48 Dynamic Phantom Power Standard phantom power supplies often do not deliver and maintain sufficient power for today’s microphones. True48 is a custom circuit that ensures your mics are never starved for power, resulting in higher headroom, quicker transient recovery, and smoother response.
- HIGH AND LOW PASS FILTERS Independent High and Low Pass Filters maximize control over your recorded or live signal.
- BEST IN CLASS PERFORMANCE Everything in the LaChapell Audio Model 983S mic pre is designed to be best in class. Every component, transformer, wire and tube has been meticulously selected for performance and longevity.
- LOW NOISE AND OUTPUT IMPEDANCE The ultra-low output impedance of the LaChapell Audio Model 983S mic pre means you can run long cables from the stage to front of house or from studio room to studio room. The ultra-low noise means you can record any source with confidence that you are only recording what you WANT to record.
- FRONT PANEL HI-Z INPUT The front panel Hi-Z input allows you to plug a bass or other instrument directly into the LaChapell Audio Model 983S. As an instrument front end, the 983S allows for natural tube compression and harmonics to any input source.
