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SKU SP4048
KEF - Reference 1 Meta - Bookshelf Speakers
by KEF
$15,000.00
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Overview
Reference 1 Meta is the standmount model in KEF's Reference series, a three-way bass reflex loudspeaker with a 12th generation Uni-Q driver array with Metamaterial Absorption Technology (MAT) above a 165 mm bass driver.
Hand-built by KEF in Maidstone, Kent, UK. KEF states that every pair is matched to within 0.5 dB of its laboratory-maintained reference standard.
Drivers and Technology
- 12th generation Uni-Q driver array with a 25 mm aluminium dome tweeter and 125 mm aluminium cone midrange, with KEF's tangerine waveguide
- Metamaterial Absorption Technology (MAT) behind the tweeter, which KEF states absorbs 99% of the unwanted sound from the rear of the tweeter
- Midrange motor with a copper ring in the motor gap to reduce inductance, and a flexible decoupling chassis that isolates the Uni-Q array from the cabinet
- 165 mm (6.5 in.) aluminium cone bass drivers with a vented magnet assembly and large aluminium voice coil
- Flexible Port Technology with two port tube options (short and long) so bass output can be adjusted to suit the room
- Shadow Flare front baffle surface designed to reduce cabinet diffraction around the Uni-Q array
- Cabinet shape and bracing designed with finite element analysis, with Constrained Layer Damping
Placement and Accessories
- Mounting inserts to secure the speaker to KEF's S-RF1 Floor Stand (sold separately)
- KEF's S-RF1 Floor Stand places the Uni-Q array at the same height as on the Reference floorstanding models
- Reference Meta cloth grille set available separately
Specifications
| Design | Three-way bass reflex |
| Drive units | Uni-Q driver array: HF 25 mm (1 in.) aluminium dome with MAT, MF 125 mm (5 in.) aluminium cone. LF 165 mm (6.5 in.) aluminium cone |
| Frequency response (±3dB) | 45 Hz to 35 kHz |
| Frequency range free field (-6dB) | Short port: 40 Hz to 45 kHz. Long port: 37 Hz to 45 kHz |
| Typical in-room bass response (-6dB) | 30 Hz |
| Crossover frequencies | 450 Hz, 2.1 kHz |
| Amplifier requirements | 50 to 200 W |
| Sensitivity (2.83V/1m) | 85 dB |
| Harmonic distortion, 2nd and 3rd harmonics (90dB, 1m) | <0.5% 40 Hz to 100 kHz, <0.2% 200 Hz to 2 kHz, <0.1% 2 kHz to 20 kHz |
| Maximum output | 111 dB (peak SPL at 1 m with pink noise) |
| Impedance | 4 Ω (min. 3.2 Ω) |
| Dimensions with grille and terminal (H x W x D) | 440 x 205 x 422 mm |
| Weight | 18.2 kg per speaker |
| Finishes | Satin Walnut/Silver, High-Gloss White/Blue, High-Gloss White/Champagne, High-Gloss Black/Grey, High-Gloss Black/Copper |
| Origin | Hand-built by KEF in Maidstone, Kent, UK |
| Unit | Sold as a pair |
