Coil Audio CA-286S Preamp

£1,829.00 £1,524.17
In Stock
- +
Standalone tube mic/line amplifier is a preamp module inspired by classic 1950’s and 1960’s European two-stage circuit amplifiers manufactured by Telefunken, Langevin, Collins and Gates.

The Coil Audio CA-286S is a 2U mic preamp standalone version of the CA-286 PS6 tube mic/line amplifier, inspired by a classic European two-stage circuit


The Coil Audio CA-286S uses the exact same European style circuit as the CA-286 PS6 and delivers the same Hi-Fi tone and rich midrange. It uses Coil Audio’s own CT110HN input and CT-10 output transformers as well as NOS Octal tubes, resistors and high-quality capacitors.


The input section includes a four-position switch which provides various 150/250Ohms mic pads from 0, -6dB, 12dB, 19dB which also affect the line-level amplification when engaged. Negative Feedback is used to modify the frequency response by increasing the amount of negative feedback into the circuit. A Low switch works in conjunction with the NF switch to boost or reduce the amount of low-frequency energy. Finally, the output control knob is placed between the 1st and second stage EF86 tubes and id used to set the final output.


Coil Audio CA-286S Main Features:


  • 2U steel enclosure with integrated power supply
  • CT-110HN high nickel input and CT-41 output transformers installed
  • Negative feedback tone adjustment with LOW filter
  • Two-stage 6J7/6C5 vacuum tube single-ended circuit
  • 42db-54db of available gain
  • Flexible input pad section for Mic or Line level operation
  • 150 Ohm Mic input, 20k Line input, 600 Ohm output
  • NOS tubes, signal caps & resistors, PEC 2W carbon pots
  • Slow Ramping/Linear regulated Power Supply to prolong tube life
  • Hand Built and Tested in the USA
  • More Information
    Short Description Standalone tube mic/line amplifier is a preamp module inspired by classic 1950’s and 1960’s European two-stage circuit amplifiers manufactured by Telefunken, Langevin, Collins and Gates.
    Demo in Store No
    Exclusive KMR Exclusive
    Manufacturer Coil Audio
    DI Input No
    Side Chain Input No
    Chassis Rackmount
    Phantom Power No
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