UR10
UR12
UR15
Size
25 cm (10")
30 cm (12")
37,5 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*
* Data measured with
Voice coil inductance, 1 kHz
0,8 mH
0,89 mH
0,89 mH
VC connected in parallel
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 VC)
0,3* (0,6 with single VC)
0,36* (0,57 with single VC)
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:
16 liters / 0,56 ft
3
F3: 49,8 Hz
UR15 single voice coil:
55 liters / 1,94 ft
3
F3: 52,4 Hz
use only one voice coils 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
(VC in parallel, 2 ohm
Vb1
Vb2
Port Vb2
19,5
11,16
1x6,8x32 cm
0,69 ft
3
0,39 ft
3
1 x 3" x 12,6" (US)
F3 Vb1: 40,5 Hz, Vb2: 73,6 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.
