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Lowther EX2

1260100001

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Lowther EX2 high efficiency fullrange

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502,17 € tax incl.

-27,83 €

530,00 € tax incl.

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The latest EX series of drive units will completely transform all existing Lowther Loudspeaker Systems. Every Lowther Owner may now enjoy the greatly superior sound reproduction qualities which only the 'EX' drivers are capable of.

 Each model in the 'EX' range incorporates an acoustic chamber precisely tuned for optimum performance. Cone assemblies are pressure balanced between the acoustic chamber at the rear and a phasing equalizer fitted to the front. No unwanted oscillations of the speech coil occur. Only bass frequencies will pass through the acoustic chamber, so avoiding bass/mid-range confusion, often a cause of coloration.

 Using the latest method of construction, the inner cone is now isolated from the outer. This is not readily visible, but what is noticeable is that the rim of the inner cone is terminated with a reverse roll. Where once sound frequencies cancelled each other and information was lost, now all that information is retrieved and can be enjoyed. Where once sound frequencies were reinforced by the two cones working in unison at certain frequencies, now there is no over-forward sound reproduced. The frequency range is so smooth, and so much more detail from the recorded source is reproduced, that an entirely new level of listening experience will be enjoyed.

The latest 'state of the art' rare earth magnet technology is employed to enable complete control of the diaphragm throughout the entire audible range. This results in maximum information being extracted from the recorded source whilst delivering a very smooth response at all frequencies.

The 'EX' series Drive Units are the best full range drive units ever produced. They are designed to fit into every Lowther cabinet design, both past and present, without any modification being necessary. These revolutionary drive units are a must for all Lowther owners. Everyone can now enjoy an entirely new experience of listening pleasure.
 
There are 3 models within the 'EX' range, consisting of the EX2, EX3 and EX4. Each model is the best in its class.

NOTES:

(1) Suitably housed, multi-unit assemblies do not necessarily require passive cross-over systems between bass, mid and high frequency units.
(2) All units are rated at 100 Watts.

DC Resistance of Voice Coil     Re     7.4 ohms
Free Air Resonance     Fo     45 Hz
Emission Piston Area     Sd     0.021M²
Equivalent Volume Suspension     Vas     62.775 Ltrs
Suspension Compliance     Cms     1002 u M/N
Mass of Cone     Mmd     11.0 g
Mass of Moving Parts     Mms     12.75 g
Force Factor     Bl     8.611 T-M
Mechanical Q Factor     Qms     3.608
Electrical Q Factor     Qes     0.351
Total Q Factor     Qts     0.320
Voice Coil Inductance @ 1 kHz     Le     60.226 uH
Reference Efficiency     No     1.525%
Sound Pressure Level     SPL     93.852 Db

Overall diameter         22.5 cm     
Overall Depth         8.5 cm     
Depth from Rear of Mounting Frame         7.6 cm     
PCD Mounting Centres         20.8 cm     
Baffle hole cut-out         19 cm     
Magnet Ring Diameter         7.6 cm     
Voice coil diameter         3.9 cm     
Voice coil impedance (nominal)         4, 8 or 15 ohm     
Air gap width         1.0 mm
Air gap height         5 mm     
Magnet type         'Hi-Ferric'™ Rare Earth Neodymium
Flux density (1 Tesla=10,000 gauss)         1.75 Tesla
Diaphragm         Twin-paper     
Frequency response         30 Hz - 20 kHz
Maximum voice coil travel         ± 1 mm     
Shipping weight         3.0 kg   

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Lowther EX2

Lowther EX2

Lowther EX2 high efficiency fullrange