Features:

• FIRST 500 SERIES TUBE PREAMP: The 583 series was the first ever tube preamp for the 500 series. It is extremely versatile, allowing a wide range of sonic options from clean to harmonically rich. It’s great for use on almost any source with almost any mic.
• DUAL DRIVE KNOBS: The Dual Drive knobs on the 583E provide an incredible array of tonal options. Favoring the input knob will increase the signal going into the tube, resulting in more harmonics and overall distortion. Favoring the output know yields a very clean signal. Together, you can dial in sounds from pristine to warm and harmonically rich.
• TRUETUBE™ 250V POWER: TrueTube™ technology supplies both the plate and filament of the tube with the proper voltages they need to access the full characteristics of the tube. Other tube preamp designs cannot supply the needed 250V and don’t have the headroom or harmonics that characterize that classic tube sound.
• TWO MODULES IN ONE: The clean and transparent EQ section on the 583E can operate immediately following the tube preamp section, or as its own separate module. When combined, the output of the preamp and EQ appears on the “Preamp Side” XLR outputs. When independent, the in and out of the “EQ Side” operate separately. Use as a complete channel strip or as two separate 500 series modules.
• BOUTIQUE QUALITY TRANSFORMERS: With a Cinemag input transformer and Jensen output transformer, the 583E maintains a boutique quality signal chain from I to O. Every aspect of the 583E has been designed for sonic quality that will last for generations.
• FRONT PANEL HI-Z INPUT: The front panel Hi-Z input allows the 583E to be used as an instrument preamplifier. A front panel switch allows the user to alternate between the front panel Hi-Z input and the built in inputs on the 500 series chassis.