LOWTHER DX3

Lowther DX3 high efficiency fullrange

€749.00
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Lowther DX3 high efficiency fullrange

The DX series of drive units employ 'state of the art' rare earth magnet technology. The magnet assemblies are extremely light and compact, yet much more powerful than any conventional magnets. Coupled to Lowther's own ‘Hi-Ferric' coil control system, the acceleration and damping factors are increased well beyond anything achieved in the past, even with the extremely large and powerful magnet assemblies for which Lowther has always been renowned. These all-powerful magnet assemblies allow the diaphragms to reach acceleration rates well beyond the capabilities of any conventional magnet system.

The effect of such powerful magnet assemblies coupled to the ‘Hi-Ferric' coil control system, increases the speed of the cones and yet has a truly remarkable degree of damping. This results in an exceptional transient response, but with the oscillating factor reduced to an absolute minimum by the remarkable control of the ‘Hi-Ferric' system.

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 amount of information now obtainable from the recorded source is truly remarkable. If it is on the recording then it will be heard. No detail is missed and no degrading of the signal will occur due to unwanted coil oscillations.

It is true to say that never before has it been possible to achieve such a quality of sound reproduction. The DX series achieve a realism to sound reproduction that has to be heard to be believed.

Perhaps the most remarkable feature is the very compact size and light weight and yet with a magnetic power which is more than 10 times that possible from conventional magnets.

The DX series of drive units have so many advantages and this all adds up to a quality of sound reproduction that will provide a level of listening enjoyment equalled only by the pleasure of a live performance.

NOTES:

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

Technical characteristics:

Voice coil DC resistance Re 7.4 ohms

Free air resonance Fo 45 Hz

Piston emission area Sd 0.021M²

Equivalent volume suspension VAS 52,460 liters of l

Suspension of Compliance Cms 837.732 u M / N

Cone Weight Mmd 11.0g

Weight of Moving Parts mms 12.75 g

Force factor Bl 10.985 T-M

Mechanical Q Factor Qms 3.533

Electrical Factor Q Q is 0.239

Total Q factor Qts 0.224

Voice coil inductance at 1 kHz Le 35.511 uH

Reference efficiency No 2.449%

Sound pressure level SPL 95.908 Db

Overall diameter 22.5cm

Overall depth 7.00 cm

Depth of the rear of the mounting frame 6.6 cm

8" PCD Mounting Centers

Cutout hole deflector 19 cm

Magnet ring diameter 9 cm

Coil diameter 3.9 cm

Voice coil impedance (nominal) 4, 8 or 15 ohms

Air Gap Width 1.0mm

Air gap height 5.0 mm

Rare earth magnet type "Hi-ferric"™

Flux Density (1 Tesla = 10000 Gauss) 2.0 Tesla

Twin-paper diaphragm

Frequency response 30 Hz - 22 kHz

Maximum voice coil displacement ± 1 mm

Shipping weight 2.5kg

Lowther
1260100005

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