Haut-parleur large bande Lowther DX45 15 ohms [DX45-15] Avis/Critiques The DX Series incorporates 'state of the art' magnet technology using powerful rare earth magnetic materials.


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.

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 assemblies do not necessarily require passive cross-over systems between bass, mid and high frequency units. (2) All units are rated at 100 Watts. (3) We will be happy to answer any questions, (especially those of a technical nature) - either directly from Lowther Loudspeaker Systems in the UK or additionally via your authorised Lowther Club or Distributor if overseas. (4) We reserve the right to vary the specification and design without prior notification.
Caractéristiques Lowther DX45 (attention pour la version 8 ohms) :
| Overall diameter |
|
17.4 cm |
| Overall Depth |
|
7.0 cm |
| Depth from Rear of Mounting Frame |
|
6.4 cm |
| PCD Mounting Centres |
|
15.6 cm |
| Baffle hole cut-out |
|
14 cm |
| Magnet Ring Diameter |
|
7.6 cm |
| Voice coil diameter |
|
3.9 cm |
| Voice coil impedance (nominal) |
|
15 ohm |
| Nominal impedance |
Z |
8 ohm |
| Minimum impedance |
Zmin |
7.2 ohm |
| Nominal Power Handling |
|
100W |
| Emission piston area |
Sd |
0.021M² |
| Air gap width |
|
1 mm |
| Air gap height |
|
5 mm |
| Magnet type |
|
Hi-Ferric'™ Rare Earth |
| Flux density (1 Tesla=10,000 gauss) |
|
1.7 Tesla |
| Diaphragm |
|
Twin-paper |
| Frequency response |
|
80 Hz - 20 kHz |
| Nominal air resonance |
|
60 Hz |
| Sensitivity at 1m/1kHz/1watt |
|
93 db |
| Maximum voice coil travel |
|
± 1 mm |
| Suspension compliance |
Cms |
|
| Total Q Factor |
Qts |
0.326 |
| Electrical Q Factor |
Qes |
|
| Mechanical Q Factor |
Qms |
|
| Equivalent Volume Suspension |
Vas |
0.011M³ |
| Effective Moving Mass Kg. |
|
|
| Shipping weight |
|
2.0 kg |
|