Surround Sound Speaker Systems

Kef IQ Series Speakers and HTBSE-W Wireless Subwoofer

ARTICLE INDEX

Introduction

KEF is the venerable British-based loudspeaker company founded in 1961 by former BBC electrical engineer Raymond Cooke. The company first became famous for its monitors and Reference series speakers. In 1988, KEF introduced the revolutionary Uni-Q system, which mounted a neodymium-based tweeter in the center of the woofer voice coil. Since then, KEF has expanded its product line to include the ultra high-end Muon down to the entry level C Series speakers. The subject of this review, KEF's Q Series speakers, is the next step up from the C Series. As the name implies, it offers the Uni-Q technology in each of the five main speakers.

KEF also provided its new HTB2SE-W wireless subwoofer, which won the design and engineering showcase honors at last month's CES. The HTB2SE-W is a radical departure from the standard rectangular box design, and as Secrets' resident bass-head, I was excited to check it out.

Specifications

  • iQ 90 Main Front Speakers
  • Design: Three-way, Ported
  • Drivers: One 0.75" Aluminum Dome Tweeter, Two 6.5" Woofers Units: 2 x 165mm (6.5in.) LF, 165mm (6.5in.) Uni-Q, 19mm (0.75in.) aluminum dome HF Crossover Frequencies: 180Hz, 2.5kHz
  • MFR: 33 Hz - 40 kHz
  • Sensitivity: (2.83V/1m)
  • Crossover Frequencies: 180 Hz, 2.5 kHz
  • Nominal Impedance: 8 Ohms
  • Dimensions: 37" H x 8.7" W x 12.9" D
  • Weight: 36 Pounds/each
  • Finishes: Black Ash, Dark Apple, American Walnut
  • MSRP: $750/each USA
  • iQ60c Center Channel Speaker
  • Design: Three-way, Ported
  • Drivers: One 0.75" Aluminum Dome Tweeter, One 5.25" Midrange, Two 5.25" Woofersencies: 280Hz, 2.8kHz
  • MFR: 65 Hz - 40 kHz
  • Sensitivity (2.83V/1m): 90dB
  • Crossover Frequencies: 280 Hz, 2.8 kHz
  • Nominal Impedance: 8 Ohms
  • Dimensions: 6.5" H x 20.1" W x 10" D
  • Weight: 19.4 Pounds
  • Finishes: Black Ash, Dark Apple, American Walnut
  • MSRP: $550 USA
  • iQ30 Rear Surrounds
  • Design: Two-way, Ported
  • Drivers: One 0.75" Aluminum Dome Tweeter, One 6.5" Woofer
  • MFR: 45 Hz - 40 kHz
  • Sensitivity: (2.83V/1m) 89 dB
  • Crossover Frequency: 2.5 kHz
  • Impedance: 8 Ohms
  • Dimensions: 14.4" H x 8.7" W x 12.9" D
  • Weight: 14.2 Pounds
  • Finishes: Black Ash, Dark Apple, American Walnut
  • MSRP: $600/pair USA
  • HTB2SE-W Subwoofer
  • Design: Passive Radiator
  • Drivers: One 10" Active, One 10" Passive Radiator
  • Amplifier: 250 Watts RMS Class D
  • MFR: 30 Hz - 150 Hz
  • Dimensions: 15.4" H x 17.3" W x 7.7" D
  • Weight: 26.2 Pounds
  • Wireless Transmitter: Frequency Band: 2.4-2.4835 GHz (ISM Band
  • Transmitter Module Dimensions: 5.8" H x 3.1" W x 3.1" D
  • MSRP: $1,200 USA
  • KEF USA