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We are pleased to announced that KEF are to release a new speaker range called the E Series. The new KEF E Series follows in the footsteps of the groundbraking design of the KHT2005 and KHT3005 5.1 speaker packages.
The secret of the KEF E305 system’s outstanding hi-fi response lies in the latest iteration of KEF’s patented Uni-Q driver array, originally developed for the multiple award-winning Q Series. With its famously wide dispersion characteristics and sonic purity, this technology is what gives the system its extraordinarily natural sound quality.
The KEF E Series tweeter at the centre of the midrange cone is vented to prevent distortion-inducing high pressure from building up behind the dome, so the response in the critical vocal region remains intricately detailed with every nuance of the original recording. With the KEF tangerine waveguide, it encourages the sound to radiate evenly, increasing both the dispersion and sensitivity of the tweeter for a more natural performance throughout the listening area.
Being stiffer than conventional materials, the KEF E Series aluminium midrange cone operates rigidly over the entire vocal range for the smooth, clear midrange response that reproduces the human voice with stunning accuracy. Together with the KEF Z-flex cone surround it allows the cone full excursion while providing a smooth, uninterrupted surface over which the tweeter output passes with no disturbance or diffraction effects. The undercut magnet designed driver motor, which usually is only found in premium loudspeakers, reduces the midrange distortion by generating a symmetrical magnetic field, the resulting transparency helps to create the feeling of being in front of the performance.
It takes more than a great driver to create a class-leading satellite speaker, and the KEF E301 satellite was designed from the start as a single perfectly balanced system with the crossover, cabinet and drivers working together in harmony.
The less there is to intermediate the recorded signal, the clearer the sound. To eliminate secondary radiation and cabinet coloration, the enclosures are heavily reinforced with internal ribbing and damping technologies to ensure sonic accuracy with no unwanted resonances. The low diffraction cabinets are carefully engineered to minimise scattering of the output, so nothing subtracts from, or adds to, the sound from the driver.
The KEF E305 5.1 speaker system is designed to deliver exceptional bass performance, with the sub seamlessly integrated within the rest of the system, so it sounds like five full-range loudspeakers. The frequency and phase response of the sub and satellites are carefully matched to smoothen the transition, so you can’t hear where the satellite stops and the sub starts.
With a large, powerful motor system driving a long throw 8 inch cone, low frequency reproduction remains composed and accurate, even at high volume. Based on a Linkwitz Transform circuit to minimise any signal group-delay that would otherwise muddy the bass, the on-board pre-amp assures noticeably cleaner and more accurate low frequency reproduction.
A closed-box design, the KEF E-2 active subwoofer delivers agile extended bass response without overhang – fast, punchy and well defined. Like the satellites, the cabinet borrows damping technologies from the already legendary KEF LS50 to avoid resonance and secondary radiation to ensure tight, clean and immaculately controlled bass.
Specification
E301 Sat and E301c Centre
2-way bass reflex system
Uni-Q driver array
19mm vented aluminium dome HF unit
115mm aluminium MF/LF cone
Frequency range (-6dB) – 80Hz – 45kHz
Frequency response (+/-3dB) – 90Hz – 33kHz
Crossover frequency – 2.7kHz
Amplifier requirements -10 – 100W
Sensitivity (2.83V/1m) – 86dB
Harmonic distortion 2nd & 3rd harmonics (90dB/1m) –
Maximum output (SPL) – 109dB
Nominal impedance – 8 Ohms (min. 3.4 Ohms)
Internal volume – 1.5 litres
Weight – 2.4Kg (each)
Dimensions (W x H x D) – 260 x 136 x 159mm
Finishes – Deep Black & Pure White
E-2 Subwoofer
Active subwoofer
LF drive unit – 200mm diameter
Frequency range (-6dB) – 33Hz – 280Hz
Amplifier – 280W Class D
Maximum output (SPL) – 102dB
Enclosure type – Sealed box
Internal volume – 14.7 Litres
Power requirements – 100 – 240VAC 50/60Hz
Power consumption – 250VA
Weight – 7.25Kg
Dimensions (W x H x D) – 320 x 430 x 270mm
Finishes – Deep Black & Pure White
