Specifications

UR10 UR12 UR15
Size 25 cm (10") 30 cm (12") 35 cm (15")
Impedance 2 x 4 ohm 2 x 4 ohm 2 x 4 ohm
Nom. power (RMS) 400 W (max 700) 500 W (max 800) 500 W (max 800)
Freq. range 25 Hz- 2 kHz 20 Hz-2 kHz 15 Hz- 2 kHz
Sensitivity 85,6 dB 87,2 db 90 dB
Voice coil diameter 75 mm (3”) 75 mm (3”) 75 mm (3”)
Voice coil height 42 mm (1,65”) 42 mm (1,65”) 42 mm (1,65”)
Re 1,92 ohm* 1,6 ohm* 1,93 ohm*
Voice coil inductance, 1 kHz 0,8 mH 0,89 mH 0,89 mH
BL product 13,1 16,1 13,9
X-max +-14 mm (0,55”) +-14 mm (0,55”) +-14 mm (0,55”)
Suspension compliance CMS 80,2 82 146
SD- Effective piston area 314,6 cm
2
452,3 cm
2
854,8 cm
2
Resonant freq. (Fs) 42,3 Hz 36,1 Hz 27,5 Hz
Vas (liters) 13,9 24 116,7
Vas (ft
3
) 0,5 0,85 4,12
Qms 5,62 4,98 4,31
Qes 0,40 0,32 0,40
Qts 0,37(0,7 with single coil) 0,3 (0,6 with single coil) 0,36 (0,57 with single coil)
Cone material Magnesium Magnesium Magnesium
Magnet weight 180 oz (5,1 kg) 200 oz (5,67 kg) 200 oz (5,67 kg)
Magnet diameter 7,1" (180 mm) 8,7" (220 mm) 8,7" (220 mm)
Installation depth 5,24" (133 mm) 5,9" (150 mm) 6,93" (176 mm)
Mounting hole 9,29" (236 mm) 11,1" (282 mm) 14,17" (360 mm)
Outer diameter 10,39" (264 mm) 12,2" (310 mm) 15,35" (390 mm)
Weigth 20 lb (9,1 kg) 28,66 lb (13 kg) 29,54 lb (13,4 kg)
TECHNICAL SPECIFICATIONS FOR DLS ULTIMATE SUBWOOFERS
RECOMMENDED ENCLOSURES FOR UR10, UR12 & UR15
VENTED ENCLOSURE
Subwoofer Volume (liters/ft3) Port Damping F3 Fb
UR10* vol: 19 / 0,67 3” x 40 cm/15,75” Line inside 40,1 Hz 40,0 Hz
UR12* vol: 27,4 / 0,95 3” x 33 cm/ 13” Line inside 37,4 Hz 34,0 Hz
UR15/par vol: 57 / 2,01 4” x 24 cm/9,45” Line inside 51,2 Hz 39,8 Hz
UR15/ser vol: 52 / 1,84 4” x 24 cm/9,45” Line inside 43 Hz 39,8 Hz
* voice coils in either series or parallel
SEALED ENCLOSURE
UR10 single voice coil:
15 liters / 0,53 ft
3
F3: 49,9 Hz
UR12 single voice coil:
21 liters / 0,74 ft
3
F3: 52,7 Hz
UR15 single voice coil:
55 liters / 1,94 ft
3
F3: 52,4 Hz
use only single voice coil in sealed
enclosures
The speaker is installed in
Vb1 playing into chamber
Vb2 where the port(s) are
installed.
F3 = approximative lower frequency for
vented boxes in Hz. Often called F-3
dB point = the point where the power is
50% lower.
Fb = Box resonant frequency
SEALED BANDPASS
UR12 (single VC 4 ohm)
Vb1 Vb2 Port Vb2
19,93 18,13 1x10,2x34 cm
0,7 ft
3
0,64 ft
3
1 x 4" x 13,4" (US)
F3 Vb1: 40 Hz, Vb2: 89,1 Hz
UR15 (VC in parallel, 2 ohm)
Vb1 Vb2 Port Vb2
41,13 55,4 1x16x27 cm
1,45 ft
3
1,96 ft
3
1 x 6" x 10,6" (US)
F3 Vb1: 50 Hz, Vb2: 102,5 Hz
Vb1=rear, Vb2=front
RUNNING-IN PERIOD
Allow the speaker to play for at
least 15-20 hours. After this time
the performance is correct.
Revised data for UR10 valid from production date 2003-07-01.
Revised data for UR12 valid from production date 2003-12-01
26
* Data measured with VC connected in parallel