KEF 103 RR

With exceptional power handling for a compact loudspeaker Model 103 offers unique flexibility of installation and precise stereo image formation.

The drive units are centre-line mounted on a rotable, steel, speaker panel which can be turned (by successive right angles) through 360°. No matter how the system is positioned in the room the speaker panel may be placed to give the broadest, uniform, sound dispersion in the horizontal plane, ensuring accurate stereo imaging and the minimum of tonal variation.


Colouration

The greatest enemy of natural sound reproduction is colouration. It alters the tonal character of instrumental sounds, upsets balance and distorts acoustic perspective.

Colouration is mainly caused by uncontrolled vibrations in the drive units and the cabinet enclosure. The radiating diaphragms in KEF loudspeakers are made from highly damped plastic materials pioneered by KEF in conjunction with renowned organisations such as the BBC, the diaphragm of the low frequency unit in Model 103 is made of a specially formulated rubber-modified polystyrene laminated to a visco-elastic damping layer with a high internal loss factor. This construction effectively dissipates unwanted stored energy in the diaphragm thus preventing diaphragm colouration.

Coloruation due to cabinet wall vibration is reduced by internal bracing partitions and the use of laminated materials. Layered bituminous, anti-resonant linings effecticely cancel any remaining resonances.



Specification:  Model 103

System Type:  Two-way, bookshelf/stand-mount

Enclosure Type:  Closed box

Input Impedance:  8 Ω

Rated Maximum Power:  100W programme

Amplifier Requirements:  25-100 watts per channel into 8 Ω

System Resonance:  58 Hz, Q=0.9

Nominal Frequency Range:  30 - 20,000 Hz 

Specific  Frequency Response:  50 - 20,000 Hz  ±2dB

Sensitivity:  25 watts into nominal 8 Ω produces 96 dB at 1 m and 400 Hz in anechoic conditions

Harmonic Distortion:  1% T.H.D. 100 - 20,000 Hz ralative to 96 dB SPL at 400 Hz, 3% T.H.D. at 50 Hz

Crossover Frequency:  3,000 Hz (electrical cut-off slope 18 dB/8ve)

Finishes:   Walnut, Teak

Grille:  black microcellularfoam

System:  SP1048

Drive units: 

B200 bass unit (SP1039),

T52 tweeter (SP1049)

Crossover:  SP1050

Internal Volume:  25,4 litres

Dimensions (W x H x D):  500 x 303 x 225 mm (19.7" x 13" x 8.9")

Weight:  19.5 kg (41,88 lb)


Alleen ophalen. Te groot/zwaar om te sturen. Speaker heeft gebruiker sporen maar geen kapotte hoeken en komt ook zonder grill.