For ultimate performance, the K1 floor-standing model offers a similar performance to the B1 but with the potential for increased level and detail through the use of four low frequency drivers in conjunction with mid and high units in a 3 & 1/2 way system.

K1 employs a single D50 mid range driver (patent pending), between 900Hz and 4 kHz with the range beyond being handled by a D26 tweeter (patent pending). Below 900Hz the K1 uses four C125 mid-bass drivers (patent pending), two mounted on the front baffle and two mounted on the rear baffle of the cabinet. These four drivers are internally coupled in pairs via screw tensioning units for reaction cancelling. All drivers receive the same signal at frequencies below 100Hz while above this point the drive to the rear is progressively attenuated leaving only the front upper driver to operate all the way to 900Hz to ensure good vertical dispersion at crossover. Fourth order filters ensure phase coherence through both main crossover points resulting in a seamless and symmetrical polar performance.

Integral to the K1 enclosure is the stand. Made from the same cast carbon fiber reinforced polyester compound as the enclosure, the stand provides an exceptionally stable footing further guaranteed by the use of a total of five custom spikes mounted around the periphery of the base. Adjustment of the two rear spikes and that at the front sets the correct attitude while the remaining two can then be brought into contact with the floor for maximum safety.

Within each of the streamlined arms are hidden separate conduits to guide the Van den Hul® interconnecting cable away from the two internally mounted crossovers into the base. Precision machined WBT® gold plated terminals are discreetly located at the rear of the base to allow a visually unobtrusive connection to the outside world.

These beautiful speakers are full of ground breaking technology, here is an over-view of the Vivid Audio Patents applied to the K-1: (View white papers under Docs tab).

  1. Super Flux Magnet on the D26
  2. Centenary Dome on the D26 & the D50, combined with a carbon fiber stiffening ring
  3. Hyper Perforated Voice Coil Formers on the C125 woofers
  4. Compliantly mounted reaction canceling LF units
  5. Exponentially Tapered Tube Loading
  6. Highly Aligned Chassis
Item Value
Configuration: 3 & 1⁄ 2 way vented cabinet
Cabinet Material: Complex loaded carbon fibre filled polymer
Finish: High Gloss Automotive
Drive Units: 26mm metal dome hf unit
50mm metal dome mf unit

158mm metal coned lf unit (two of coupled)

Sensitivity: 89dB/1w @1m
Nominal Impedance (Ω) 4
Frequency range (hz): 6dB points 35 – 44,000
Frequency response (hz): 39 to 41,000 +/- 2dB on reference axis
Harmonic distortion (2nd and 3rd harmonics) <.0.5% over frequency range
Cross over frequencies (hz): 100, 900, 4000
Power handling (music program) watts rms: 300
Loudspeaker dimensions (H, W, D cabinet, D base) 43″ (1095), 10.4″ (265), 18″ (375), 19″ (420)
Net Mass: 84 lb. (38)
Shipping dimensions (H, W, D) mm: 48″ (1220), x 16″ (410), x 20″ (510)
Shipping Mass (kg): 110 lbs (50)

Product Documentation

White Papers

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Press Reviews

“To sum up, acquiring whatever Vivid speaker strikes your fancy and budget will buy you the utmost levels of transparency and unfettered reflexes. Amazingly agile, astonishingly lucid and revealing, I view my Vivid Audio K1 as a kind of state of the art and a world-class design. I could for example imagine Ferdinand Porsche designing his own pair of K1 devoid of box coloration to then wonder what kind of car Dickie would have built if he worked in the automotive sector. As you will appreciate, it’s difficult for me to award a pair of speaker I’ve lived with for so long. Obviously I won’t do it. But if I were to upgrade to something even more full-range, I’m certain it’d be from the same catalogue of this stunning Durban company.”

“Vivid’s Oval K1 is one of the best loudspeakers I have ever heard. If you can afford it, I think it delivers even better value for money than the Oval B1. Bravo.”

“Discovering just how resolute this speaker is makes us wonder if we ever got the best out of the B1 some five years ago. Somehow we doubt it. The Vivid K1 is undoubtedly one of the finest loudspeakers on the planet. Lord only knows how the Vivid Giya manages to improve on it’s performance.”

Jason Kennedy, HiFi Choice (UK) November 2009

Awards