Overview

REDD.47 Pre Amp

Chandler Limited’s REDD.47 microphone pre-amplifier is a recreation of the original valve line amplifiers used in Abbey Road Studios’ heralded and rare EMI REDD.51 recording consoles circa 1959-1968.

Designed as a central component to the EMI REDD.51 recording console, the original REDD.47 line amplifier was used to amplify virtually every stage of the audio path (mic inputs, line inputs, echo sends and monitors).
The REDD.47 lent its unmistakably punchy, aggressive character to music recorded at Abbey Road Studios between 1964 and 1968, including many tracks by The Beatles.

The Chandler Limited REDD.47 pre-amp offers many additional benefits to the original design including increased gain, allowing a range of tonal options from pristine clean sound to classic rich, saturated tone with up to 2% harmonic distortion before clipping. The Chandler Limited REDD.47 pre-amp easily reproduces the distortions heard on The Beatles’ ‘Revolution.’

Chandler Limited’s REDD.47 tube microphone pre-amplifier delivers the legendary sound of Abbey Road Studios’ ‘Holy Grail’ pre-amp, with extra features to meet today’s recording studio standards.

Product Details

  • Recreation of the Abbey Road Studios REDD.47 tube pre amplifier
  • Inputs: Mic/Line (Balanced XLR), D/I (1/4”)
  • Gain: 6db increments, stepped, fine: variable +/-5db
  • Total Gain: +57db
  • Output control: variable
  • Rumble filter: Inductor based, switchable (30,45,60,70,90,110,130,180hz)
  • PAD: 20db, switchable
  • Phase: switchable
  • Phantom Power: +48v, switchable
  • Tubes: EF86, E88CC (input/output)
  • Transformer balanced I/O (custom wound)
  • Internal power supply
  • Handmade in the U.S.A
Channels
Mono
Circuit
Tube (EF86, E88CC)
Inputs
Mic/Line XLR, D/I (1/4”) / Transformer balanced (custom wound)
Output
Line (XLR) / Transformer balanced (custom wound)
Gain
Stepped 16-52db, fine: variable +/-5db
Total Gain
+57db
Output control
variable
Rumble filter
Inductor based, switchable (30,45,60,70,90,110,130,180hz)
PAD
20db, switchable
Phase
switchable
Phantom Power
+48v, switchable
Power
Internal power supply
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.