Russell K Red 50 Precision Audio Loudspeaker System

The Red 50 is the smallest cabinet in the Russell K range but what it gives up in size it makes up for with a huge musical heart.

It offers low colouration while exhibiting superb stereo imaging, timing and real energy to the overall musical picture.


  • Dimensions H- 310mm W-205mm D-200mm
  • Construction 16mm MDF all sides apart from front baffle which is 19mm.
  • Totally undamped cabinet
  • 1 acoustic loading bracing shelf with multiple (8) apertures mounted above the woofer

Drive Units

  • 5” Bass unit with impregnated paper cone and curved optimised acoustic profile
  • High power Ferrite magnet driving a 25mm voice coil with aluminium former and Faraday distortion cancelling copper ring
  • 25mm soft dome tweeter
  • Single Ferrite magnet system
  • Copper Clad Aluminium voice coil wire on a Fibreglass Former and Faraday distortion cancelling copper ring
  • Reflex port loading tuned to 55Hz


  • Drivers connected in positive phase crossover frequency 2200Hz nominal 12 db/Oct
  • Bass Inductor “Enclosed Field Ferrite Core” Very low DCR nominal stray fields
  • Tweeter attenuation by misaligned Zobel network as opposed to conventional L-Pad
  • Both Drivers have only one component in the signal path
  • Phase optimised through the crossover region
  • In room frequency range 45Hz-22 KHz