Description
KEF R11 Floorstanding Speaker (Pair)
Product Description
- The R Series’ dedicated low-frequency drivers have a two-part structure.
- The R11 benefits from Constrained Layer Damping bracing originally developed for the multiple award-winning LS50, and a new internal bracing layout.
- This combination brings the R closer to the internal structure of the Reference Series, and helps it deliver music as it is supposed to sound, without any unwanted extras.
- R11 is the flagship of the new range. Boasting four 165mm (6 in.) hybrid aluminium bass drivers.
Product features
As any hi-fi enthusiast knows, there’s no shortage of compelling speakers these days. But its beauty is only revealed when the sound isn’t right. Luckily, the KEF R11 Floorstanding Speaker, the flagship of the venerable British brand’s midsize R-series, packs smart tech for great sound into a beautiful package and comes at a lower price than you might expect. Sitting above the entry-level Q-series and below the reference series, the R-series was first launched in 2011 but is now a new version for 2018. With the latest model, the midrange is his Redesigned with Signature of R-series speaker.
Connect motor systems, cones and surrounds to Uni-Q coaxial arrays. Additionally, a new proprietary technique was developed to control the acoustics at the midrange junction of the tweeter and coaxial driver. According to KEF’s tower speakers, these redesigns are designed to deliver a cleaner sound with less distortion and coloration. Judging by the time they spent in my listening room; I have to say that the R11 achieves these goals by a large margin.
| General | |
|---|---|
| Brand | Kef |
| Model | R11-SPEAKER |
| Color | Black |
| Dimension | |
|---|---|
| Dimension | 1295.5 x 310.6 x 383.5 mm |
| Weight | 37.7 kg (83.1 lbs.) |
| Specifications | |
|---|---|
| Design | Three-way bass reflex |
| Drive Units |
Uni-Q Driver Array:
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium cone
Bass Driver:
 LF: 4 x 165mm (6.5in.) hybrid aluminium
|
| Crossover Frequencies | 400Hz, 2.9kHz |
| Frequency Range | 30Hz-50kHz (-6dB) |
| Typical In-Room Bass Response | 26Hz (-6dB) |
| Frequency Response | 46Hz-28kHz (±3dB) |
| Harmonic Distortion | <0.3% 120Hz-20kHz (90dB, 1m) |
| Amplifier Power | 15-300W (recommended) |
| Maximum Output | 113dB |
| Nominal Impedance | 8 Ohms (min.3.2 Ohms) |
| Sensitivity | 90dB (2.83V/1m) |
| Warranty | |
|---|---|
| Warranty Type | Official Manufacturer Warranty |
| Warranty Period | 1 Year |
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