MUON
General
| Design | Four-way closed box floorstanding loudspeaker ACE enclosure |
| Drive Units | 6 x 250mm (10in.) LF, 1 x 250mm (10in.) LMF,Uni-Q driver array: MF: 1 x 125mm (5in.) Li-Mg-Al /LCP, hybrid cone HF: 1 x 25mm (1in.) vented aluminium dome, featuring KEF’s unique ‘Tangerine Waveguide’ |
| Frequency Response | 25Hz to 60kHz * (±3dB) |
| Crossover Frequencies | 120Hz, 300Hz, 2.3kHz |
| Maximum Output | 118dB |
| Amplifier requirements | 100 to 400W (typical) |
| Sensitivity | 90dB (2.83V/1m) |
| Input Impedance | 4 Ohms |
| Low Frequency Extension | 20Hz (-6dB) * |
| High Frequency Extension | 100kHz (-10dB) * |
| Dimensions | H x W x D: 2000 x 600 x 380 mm (78.8 x 23.6 x 15 in.) |
| Weight | 115kg (253lbs) |
| Unit measurement | Pair |
| Document Download | MUON Brochure |
| Remarks | * Typical, in-room response |
BLADE & BLADE TWO
General
| Design | three-way bass reflex, single apparent source driver configuration |
| Drive Units | Uni-Q driver array: MF: 125mm (5in.) Li-Mg-Al /LCP hybrid cone HF: 25mm (1in.) Al dome Bass units: LF: 4 x 225mm (9in.) with force cancelling |
| Frequency Range | 28Hz – 45kHz (-6dB) free field 20Hz (-6dB) typical in room bass response |
| Frequency Response | 40Hz – 35kHz ±3dB (-6dB at 28Hz) |
| Crossover Frequencies | 350Hz, 2.3kHz |
| Maximum Output | 117dB (peak sound pressure level at 1m witd pink noise) |
| Amplifier requirements | 50 – 400 W |
| Sensitivity | 91dB (2.83V/1m) |
| Harmonic distortion | 2nd & 3rd harmonics (90dB, 1m) <0.5% 40Hz – 100kHz <0.2% 200Hz – 10kHz |
| Impedance | 4 Ohms (min.3.2 Ohms) |
| Dimensions | 1590 x 363 x 540 mm / 62.5 x 14.3 x 21.2 in. (witd plintd H x W x D) |
| Weight | 57.2 kg (126 lbs) |
| Unit measurement | Pair |
| Document Download | BLADE Manual BLADE & BLADE TWO Brochure BLADE & BLADE TWO Information Sheet |
| Remarks | * KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. |
REFERENCE 1 BOOKSHELF SPEAKER
General
| Design | three-way Bass Reflex |
| Drive Units | Uni-Q driver array: HF: 25mm (1in.) vented aluminium dome MF: 125mm (5in.) aluminium Bass units: LF: 1 x165mm (6.5in.) aluminium |
| Frequency Range | Typical in room bass response: 30Hz (-6dB) Free Field – Short port: 40Hz – 45kHz (-6dB) Free Field – Long port: 37Hz – 45kHz (-6dB) |
| Frequency Response | 45Hz- 35kHz (±3dB) |
| Crossover Frequencies | 350Hz, 2.8kHz |
| Maximum Output | 111 dB (peak sound pressure level at 1m with pink noise) |
| Amplifier class | 50-200W |
| Sensitivity | 85dB (2.83V/1m) |
| Harmonic distortion | 2nd & 3rd harmonics (90dB, 1m) <0.5% 40Hz – 100kHz <0.2% 200Hz – 10kHz |
| Impedance | 8 Ohms (min.3.2 Ohms) |
| Dimensions | H x W x D with grille and terminal : 440 x 205 x 430 mm (17.3 x 8.1 x 16.9 in. ) |
| Weight | 18.2kg (40.1lbs) |
| Unit measurement | Pair |
| Document Download | thE REFERENCE Brochure thE REFERENCE Manual THE REFERENCE 8b Manual THE REFERENCE White Paper THE REFERENCE Information Sheet |
LS50
General
| Design | Two-way bass reflex |
| Drive Units | Uni-Q driver array: HF: 25mm (1in.) vented aluminium dome LF/MF: 130mm (5.25in.) magnesium/aluminium alloy |
| Frequency Range | 47Hz – 45kHz (-6dB) |
| Frequency Response | 79Hz – 28kHz (±3dB) |
| Crossover Frequencies | 2.2kHz |
| Maximum Output | 106dB |
| Amplifier requirements | 25 – 100 W |
| Sensitivity | 85dB (2.83V/1m) |
| Harmonic distortion | 2nd & 3rd harmonics (90dB, 1m) <0.4% 175Hz-20kHz |
| Nominal Impedance | 8 Ohms (min.3.2 Ohms) |
| Dimensions | 302 x 200 x 278 mm / 11.9 x 7.9 x 10.9 in. (H x W x D with terminal) |
| Weight | 7.2kg (15.8lbs) |
| Unit measurement | Pair |
| Document Download | LS50 Brochure LS50 Information Sheet LS50 Manual |
R50 DOLBY ATMOS-ENABLED SPEAKER
General
| Design | Closed box |
| Drive Units | Uni-Q driver array: HF: 25mm (1in.) vented aluminium dome LF/MF: 130mm (5.25in.) aluminium |
| Frequency Range | 96Hz – 19.5kHz (-6dB) |
| Frequency Response | 105Hz – 18.5kHz (±3dB) |
| Crossover Frequencies | 2.5kHz |
| Maximum Output | 106dB |
| Amplifier requirements | 25 – 100 W |
| Sensitivity | 85dB (2.83V/1m) |
| Harmonic distortion | <0.4% 200Hz-20kHz (90dB, 1m) |
| Nominal Impedance | 8 Ohms (min.4.8 Ohms) |
| Dimensions | 174 x 180 x 259 mm (6.9 x 7.1x 10.2 in.) witd grille and terminal |
| Weight | 4.5kg (9.9lbs) |
| Unit measurement | Pair |
| Document Download | R50 Dolby Atmos-enabled speakers Information Sheet Dolby Atmos for home FAQs Dolby Atmos for home tdeatre white paper Dolby Atmos enabled speaker technology white paper |
| Remarks | KEF reserves the right, in line witd continuing research and development, to amend or change specifications. E&OE. Dolby, Dolby Atmos, Dolby Surround, and tde double-D symbol are trademarks of Dolby Laboratories. |
Q650C CENTRE CHANNEL SPEAKER
General
| Model | Q650c |
| Design | Two and a half-way bass reflex |
| Drive Units | 165mm (6.5in.) aluminium Uni-Q 25mm (1in.)vented aluminium dome HF 165mm (6.5in.) aluminium LF 165mm (6.5in.)aluminium ABR |
| Frequency range free field | 55Hz (-6dB) |
| Frequency Response | 64Hz-28kHz (±3dB) |
| Crossover Frequencies | 2.5kHz |
| Maximum Output | 110dB |
| Amplifier requirements | 15-150W |
| Sensitivity | 87dB (2.83V/1m) |
| Nominal Impedance | 8 Ohms (min.4.2 Ohms) |
| Dimensions | H x W x D: 210 x 629 x 304 mm 214 x 629 x 304 mm (witd Rubber Feet) |
| Weight | 13.6kg(30 lbs) |
| Unit measurement | Piece |
| Document Download | Q Series Brochure Q Series Information Sheet Q Series User Manual |
ACCESSORIES
General
| Dimensions with plinth (H x W x D) | 652 x 226 x 308 mm (25.7 x 8.9 x 12.1 in.) |
|---|---|
| Weight | 4.65kg (10.3 lbs) per stand |
| Unit measurement | Pair |
| Document Download | Installation and Speaker Placement Guide Product Information Sheet |