Russell K Red 150 Precision Audio Loudspeaker System

Sounding like “the real thing” is not easy, but the Red 150 succeeds in raising the performance of the Red 100 to a higher level.

This floorstander sounds lively and naturaly, it has a perfect timing with a fast, rhythmic, full bass

Cabinet

  • Dimensions H- 950mm (1000mm including plinth, base and spikes) W-240mm D-250mm
  • Construction 16mm MDF all sides apart from front baffle which is 19mm.
  • Totally undamped cabinet
  • 3 acoustic loading bracing shelves with multiple apertures, mounted below the tweeter, below the bass mid driver and below the sub bass driver
  • 1 bracing shelf mounted near the bottom of the enclosure containing an internal port
  • Internal port vents into a small chamber containing 2 asymmetric length reflex ports tuned as a system to 21Hz

Drive Units

  • 2 x 6.5” Bass units 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
  • Double Ferrite magnet system
  • Copper Clad Aluminium voice coil wire on a Fibreglass Former and Faraday distortion cancelling copper ring

Crossover

  • All drivers connected in positive phase
  • Sub bass driver starts roll off at 80Hz 6db/Oct fed by “Enclosed Field Iron Core Inductor”. Features high power without saturation, very low DCR and almost no stray magnetic field
  • Bass/Mid driver crossover frequency 2200Hz nominal 12 db/Oct. Utilises an “Enclosed Field Ferrite Core Inductor “in the signal path. Very low DCR nominal stray fields
  • Tweeter attenuation by misaligned Zobel network as opposed to conventional L-Pad
  • All Drivers have only one component in the signal path
  • Phase optimised through the crossover region
  • In room usable frequency response 20Hz-22KHz (dependent on room)
  • Sensitivity: 87db 1 watt 1 Metre