Speaker User's Manual

RW15
Size 37,5 cm (15")
Impedance Z 2 x4 ohm
Nom.power (RMS) 400 W (max 600)
Frequency range 15 Hz - 1 kHz
Voice coil diameter 75 mm (3”)
Voice coil length 40 mm (1,57”)
X-max +-14 mm (0,55”)
CMES 117,8421
SD 830 cm
2
Cone material Paper
Magnet, weight 160 oz (4,5 kg)
Magnet, diameter 180mm (7,08”)
Installation depth 180 mm (7,08”)
Mounting hole 353 mm (13,9”)
Outer diameter 385 mm ( 15,15”)
Weight 12,5 kg (27,55 lb)
Data that varies depending on way of connection:
Single VC, 4 ohm VC:s in series to 8 ohm VC:s in parallel to2 ohm
Re / Z 3,6 ohm / 4 ohm 7,1 ohm / 8 ohm 1,6 ohm / 2 ohm
BL product 13,3 25,6 13,2
Sensitivity 86,7 dB 89,4 dB 90,1 dB
Fs 29,4 Hz 28,7 Hz 28,7 Hz
Vas (liter) 116,3 122,2 122,2
Vas (ft
3
) 4,1 4,3 4,3
Qms 3,2 3,2 3,2
Qes 0,75 0,42 0,38
Qts 0,75 0,43 0,30
TECHNICAL SPECIFICATIONS FOR DLS REFERENCE SUBWOOFERS
RECOMMENDED ENCLOSURES FOR RW15
VENTED ENCLOSURE
SEALED ENCLOSURE
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
Vb1=rear chamber
Vb2=front chamber
RUNNING-IN PERIOD
Allow the speaker to play for at least
15-20 hours. After this time the
performance is correct.
B
H
ÖD
ND
CALCULATE YOUR ENCLOSURE
Box volumes:
When caculating the volume of an enclosure you simply
multiply the width (W) x heigth (H) x depth (D).
Use measures in dm and you will get the answer in
liters.
A trapezoid box is calulated as below:
Vol=width (W) x heigth (H) x upper depth (UD) + lower depth (LD)
2
upper
suspension
voice coil
pole plate
magnet
spider
chassis
dust cap
speaker cone
T-yoke
Be sure to measure the
inside dimensions.
Subwoofer Volume (liter/ft3) Port Dampning F3 Fb
RW15* vol: 46 / 1,62 4” x 27 cm/ 10,6” Line inside 44,4 Hz 40 Hz
RW15** vol: 56 / 1,98 4” x 29 cm/ 11,4” Line inside 38,7 Hz 35 Hz
*=voice coils in parallel to 2 ohms. **=voice coils in series to 8 ohms.
RW15
Vb1 Vb2 port Vb2
29,78 26,76 2x10,2x44 cm
1,05 ft
3
0,94 ft
3
2x4"x17" (US)
F3 Vb1: 40 Hz, Vb2: 109 Hz
In this example the voice coils
are connecten in parallel to 2
ohms.
Sealed enclosure:
Volume 58 liters
F3= 38,5 Hz
Use single voice coil 4 ohm