LaChapell Model 583s Vacuum Tube Preamp for Microphones & Instruments MK1

The 583s doesn’t play by typical 500-series rules. It’s a dual-stage, high-voltage, tube-driven preamp built with a zero-compromise attitude—and yes, it runs a real 250V on that 12AX7. Originally the first vacuum tube preamp to grace the 500 format, the MK2 expands on the legacy

Specifications:

• 500 Series format
• True 250V vacuum tube power
• Single 12AX7 tube gain stage
• Discrete Class-A solid-state output
• Transformerless input
• Cinemag CMOQ output transformer
• Independent input and output gain controls
• Front-panel DI input with isolation transformer
• Three-way input impedance switch
• +48V phantom power
• Polarity reverse switch
• Max gain 75dB

Product Specs

• Item Number: 28019
• Make: LaChapell
• Model: Model 583s
• Condition: Very Good
• Finish: Maroon
• Categories: pro-audio ⇒ 500-series
• Year: 2010s
• Made In: United States
• MPN: 37197 37204 37290