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Russell K RED 100 Loudspeakers

Russell K RED 100 Loudspeakers

Regular price £3,250.00 GBP
Regular price Sale price £3,250.00 GBP
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Russell K is the new speaker brand from designer Russell Kauffman. It’s an unusually designed speaker which gives it some really audible strengths. Whilst it may look from the outside as if it’s a normal ported speaker, in fact it’s rather more complex. The box is internally divided with the rear output of the bass/mid driver being loaded into a small undamped cavity, then through carefully sized vents this loads into a more conventionally reflex ported cabinet chamber. This complex cabinet design means that the boxes are very stiff thanks to the bracing of the internal divisions, and due to the small volumes it has been possible to completely dispense with damping material.

The sonic result is bass with great speed, timing and tonality, there’s an absence of obvious box colouration throughout the registers and none of the normal hump in the bass that a lot of manufacturers engineer into the response of smaller boxes. The midrange is also similarly fast and natural sounding (thanks to the paper cone) and the treble (from a large soft dome) blends seamlessly - real evidence that a lot of work has gone into voicing them properly. Ultimately these are an exceptionally engaging, transparent and agile all rounder which ‘gets out of the way’ more convincingly than a speaker has any right to at this sort of price level.

What also surprised us is how easy they are to drive for a small speaker, with a 7 watt single ended 300B valve amplifier being a great match for them, so basically any quality amplifier, almost regardless of power, will make a great combination.

-Construction 16mm MDF all sides apart from front baffle which is 19mm.
-Totally undamped cabinet
-2 acoustic loading bracing shelves with multiple apertures mounted above and below the woofer
-Reflex port loading tuned to 35Hz
Drive Units
-6.5” 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 with double Ferrite magnet system, Copper Clad Aluminium voice coil wire on a Fibreglass Former  and Faraday distortion cancelling copper ring
-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
Dimensions H- 400mm W-260mm D-270mm
In room frequency range 30Hz-20KHz
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