User Guide

RECOMMENDED ENCLOSURES FOR Iridium10, Iridium12 & Iridium15
VENTED BOX
Sub Connection Volume (litre/ft3) Port Damping F3 Fb
Ir.10 VC in series 29 / 1,02 3” x 30 cm/11,8” Line inside 33 Hz 34,0 Hz
Ir.12 VC in series 29,6 / 1,05 3” x 16,5 cm/ 6,5” Line inside 43,9 Hz 43,0 Hz
Ir.12 VC in parallel 39,65 / 1,4 3” x 18 cm / 7,1” Line inside 36,6 Hz 35 Hz
Ir.15 * 50 / 1,765 4” x 31 cm/12,2” Line inside 38,3 Hz 37,0 Hz
* voice coils either in series or parallel
Iridium10, single VC:
32 litres / 1,13 ft
3
F3: 42,2 Hz
Iridium 10, VC:s in parallel:
21,75 litres / 0,77 ft3
F3: 59,3 Hz
Iridium12, single VC:
34 litres / 1,2 ft
3
F3: 47,5 Hz
Iridium15, single VC:
45,5 litres / 1,606 ft
3
F3: 44,6 Hz
SEALED BANDPASS
Vb1=rear chamber,
Vb2=front chamber
Iridium 15
Size 37,5 cm (15")
Impedance 2 x4 ohm
Nom. power (RMS) 600 W (max 1000)
Freq. range 15 Hz - 2,5 kHz
Voice coil, diameter 75 mm (3”)
Voice coil, length 40 mm (1,57”)
X-max +-14 mm (0,55”)
Cms 73,75
SD 779 cm
2
Cone material Non-press paper
Magnet weigth 200 oz (5,67 kg)
Magnet, diameter 220mm (8,7”)
Installation depth 176 mm (6,93”)
Mounting hole 360 mm (14,17”)
Outer diameter 390 mm ( 15,35”)
Weigth 13,4 kg (29,54 lb)
Data that can vary depending on the voice coil impedance:
Single voice coil, 4 ohm Voice coils in series to 8 ohm Voice coils in parallel to 2 ohm
Re, DC-resistance 3,7 ohm 7,3 ohm 1,7 ohm
Z, impedance 4 ohm 8 ohm 2 ohm
BL product 17 33,3 16,9
Sensitivity 86,2 dB 89,1 dB 89,5 dB
Resonant freq. (Fs) 33 Hz 33 Hz 33 Hz
Vas (litre) 63,54 63,54 63,54
Vas (ft
3
) 2,24 2,24 2,24
Qms 3,4 3,44 3,6
Qes 0,84 0,43 0,39
Qts 0,67 0,38 0,35
Technical specifications for DLS ULTIMATE Iridium 15
SEALED BOX
RUNNING-IN PERIOD
Allow the speaker to play for at least 15-
20 hours. After this time the
performance is correct.
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
The speaker is installed in Vb1
playing into chamber Vb2 where the
port(s) are installed.
Iridium10 (VC:s in parallel to 2 ohm)
Vb1 Vb2 Port Vb2
19,12 12,02 1 x6,8 x 17,7 cm
0,67 ft
3
0,42 ft
3
1 x 3" x 7" (US)
F3 Vb1: 40 Hz, Vb2: 80 Hz
Iridium12 (VC:s in parallel to 2 ohm)
Vb1 Vb2 Port Vb2
25,64 17,14 1 x10,2 x 38,5 cm
0,9 ft
3
0,6 ft
3
1 x 4" x 15" (US)
F3 Vb1: 59 Hz, Vb2: 98 Hz
Iridium15 (Single VC, 4 ohm)
Vb1 Vb2 Port Vb2
35,2 50,8 3 x10,2 x 41 cm
1,25 ft
3
1,8 ft
3
3 x 4" x 16,1" (US)
F3 Vb1: 40 Hz, Vb2: 80 Hz