DX Series

All units are rated at 100 Watts.
Suitably housed, multi-unit assemblies do not necessarily require passive cross-over systems between bass, mid and high frequency units. We reserve the right to vary the specifications and designs without prior notification. Despatch of drive units, ex-works, worldwide, is normally within 28 working days of receipt of payment.
Specifications

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. 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 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.

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.

 DX2DX3DX4DX45DX55DX65
Datasheet
Overall diameter22.5 cm22.5 cm22.5 cm17.4 cm17.4 cm17.4 cm
Overall depth7.0 cm7.2 cm8.6 cm7.0 cm7.2 cm8.6 cm
Depth from rear of Mounting Frame6.2 cm6.6 cm7.7 cm6.2 cm6.6 cm7.7 cm
PCD mounting centres20.8 cm20.8 cm20.8 cm15.6 cm15.6 cm15.6 cm
Baffle hole cut-out19.0 cm19.0 cm19.0 cm13.7 cm13.7 cm13.7 cm
Magnet Ring diameter7.6 cm9.0 cm9.0 cm7.6 cm9.0 cm9.0 cm
Voice coil diameter3.9 cm3.9 cm3.9 cm3.9 cm3.9 cm3.9 cm
Voice coil impedance (nominal)8 or 15 Ω8 or 15 Ω8 or 15 Ω8 or 15 Ω8 or 15 Ω8 or 15 Ω
Air gap width1.0 mm1.0 mm1.0 mm1.0 mm1.0 mm1.0 mm
Air gap height5.0 mm5.0 mm4.0 mm5.0 mm5.0 mm4.0 mm
Magnet typeNeodymium Neodymium Neodymium Neodymium Neodymium Neodymium
Flux density (1 Tesla=10,000 gauss)1.7 Tesla2.1 Tesla2.2 Tesla1.7 Tesla2.0 Tesla2.2 Tesla
DiaphragmTwin paperTwin paperTwin paperTwin paperTwin paperTwin paper
Frequency response30 Hz-20 kHz30 Hz-22 kHz30 Hz-22 kHz30 Hz-20 kHz30 Hz-22 kHz30 Hz-22 kHz
Maximum voice coil travel∓ 1 mm∓ 1 mm∓ 1 mm∓ 1 mm∓ 1 mm∓ 1 mm
Shipping weight2.0 kg2.5 kg3.0 kg2.0 kg2.5 kg3.0 kg