ken kreisel ks500 tripole rear speakers

Hot on the heels of 1995's S150 main LCR speaker, Ken Kreisel designed and released the SS150 tripole surround sound loudspeaker in 1996, rounding off the perfect loudspeaker package for home theatre. This design has prompted many to emulate.

Over the decades, the micro-technology of the drive units has improved overall quality and furthered the design, keeping it as relevant today as it was back in 1996.

Rather than the usual monopole type loudspeaker that was being used as rear speakers - effectively having five direct radiating loudspeakers surrounding the listener, Ken Kreisel's Tripole design too things much further - utilising a midrange driver on either side of the cabinet to radiate sound not only forward, but also up and down the room when the speaker was mounted on the side walls. This gave a full 180 degree radiation of sound, enveloping the listener further, and helping the rear effects in movies to sound more diffuse, producing far better ambient effects.

Using the same driver units as the M150 main loudspeakers, the KS500 3D tripole loudspeakers is a direct update of the classic SS150, able to fill small/medium cinema rooms and provide far more dynamic headroom than you'll ever experience in your local cinema.

The high quality drivers used for the KS500 3D tripole surround speaker are those also used in the M150 main loudspeaker, in the same arrangement of the good old SS150. Added to this are two (out of phase) drivers on each side of the cabinet, allowing sound to be projected up and down the room, when mounted in their ideal position on the side walls either side of the listening position.


This driver arrangement produces an enveloping soundfield to the side and rear of the listener, rather than the usual direct, focused sound from conventional surround speakers. Because of this more diffuse rear presentation, the KS500s are far harder to locate with the human ear, but are also able to produce precise effects placement due to their font firing drivers.

The phase-focused crossover ensures the sound from the two front drivers remains a single point to the human ear.

With two (or four) KS500s at the side/rear of your home theatre system, movies from Directors such as David Fincher - who includes a lot of ambient information in his movies - sound far more realistic. Many small/medium sized home theatre speaker systems end up sounding "edgy" or "rough" because the loudspeakers used just can't handle the signal they've been given. High quality drivers greatly reduce this issue. All you have to do is sit back and enjoy the movie, safe in the knowledge the KS500 will handle anything you throw at it.

But they're not only masters of high output and dynamism. They're just as equally capable with more gentle material too, reproducing the most subtle of sounds with delicacy you'd expect from a high-end hifi loudspeaker.

The KS500 is the ultimate surround sound speaker for high-quality home theatre systems in small/medium sized rooms.

  • 3D tripole design rear loudspeaker

  • 1x 27mm HF units

  • 1x 4" midrange units

  • 2x 3" side firing drive units

  • phase focused crossover

  • 65Hz-30kHz (+/-2dB)

  • 85dB sensitivity

  • 4ohm impedance

  • 20-180w amp recommendation

  • W 193mm x H 255mm x D 160mm

  • 3 year warranty

  • available in matte black


120 vyse street

studio 308f, the big peg

birmingham, england 

B18 6ND

0121 638 0721

0753 888 1969

the little audio company recommends Ignite record store in Birmingham,
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