Our approach to driver design
All of our products are designed for uncompromising musical performance. We won't compromise this aspect to make our drivers look better on paper. Most drivers on the market add extra voice coil layers to create more attractive specs. The result is higher mass and inductance as well as reduced magnet strength. Typically this degrades performance above 40 Hz and often results in a subwoofer which can only function as a low frequency noise maker.
Our drivers are designed for low moving mass and high flux density. To further reduce inductance and distortion, we added a FEA (finite element analysis) designed
short circuit ring effective above 30 Hz for.
Power, excursion and performance
We've avoided the temptation to aim for extreme power handling and excursion in favour of a more cost effective and musical solution. Where more output is desired than one of our drivers can deliver, we suggest one of our multiple driver options. Higher power handling and excursion have many sonic penalties and mitigating their effects involves numerous expensive compromises.
Compared to our 12" drivers, these achieve 2 db greater efficiency and 4 db greater transient output. For bass frequencies, a 6 db increase in output sounds twice as loud.
Driver features
- Rigid cone - black anodized aluminum cone
- FEA designed shorting ring - reduces 2nd order
distortion
- High linear excursion - 1.2" peak to peak
(15mm one-way) xmax
- High mechanical excursion - 1.8" peak to
peak (xmech) to reduce risk of bottoming
- Low moving mass - for low inertia operation
- Woven lead wires - prevents rattling during high
excursion
- Gold spring loaded terminals for easy solderless cable connection
Thiele Small Parameters
Model |
DS1502 |
DS1510 |
Enclosure size |
3 cu ft sealed |
3 cu ft sealed |
|
4 cu ft vented |
4 cu ft vented |
fs |
18.84Hz |
18.90Hz |
BL |
15.8 |
16.2 |
VAS |
290L |
300L |
Mms |
240g |
260g |
Qms |
3.737 |
3.543 |
Qes |
0.391 |
0.373 |
Qts |
0.354 |
0.337 |
Sd |
809 cm2 |
809 cm2 |
Re |
3.00 ohms |
3.00 ohms |
Le |
2.5 mH |
2.5 mH |
Cone finish |
Black |
Black |
basket |
Black |
Black |
Driver cutout |
14-1/16" |
14-1/16" |
Diameter (outer) |
15-5/16" |
15-5/16" |
Driver depth |
8" |
9" |
Driver basket lip depth |
3/8" |
3/8" |
Magnet depth |
1.68" (0.84" dual stack) |
2" (1" dual stack) |
Power handling |
500W RMS |
800W RMS |
Mounting
We
supply foam gasket tape to ensure a good seal when the driver is mounted to an enclosure. We suggest putting the tape on the enclosure rather than on the driver
basket.
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