Diamond CM308D2 - Manual

Massive Double Stacked Magnet
- High excursion, maximum efficiency
Cmax
TM Optimised Spider and Edge
-allows long throw and controlled braking
Integrated Rubber Trim Gasket
- seals driver for front or rear mounting
Symmetrically Balanced Suspension
- controls high excursion yaw.
Radial Vented Basket
- uses venturi effect to maximise cooling efficiency
3 Year Warranty
- if sold and installed by an Authorized Diamond Dealer
Thiele/Small data and suggested enclosure volumes for Diamond CM3 Subwwofers are shown below. The enclosures
specified here are offered as a suggestion only. Since enclosure design is as important to sound quality as the speaker
itself, it is recommended that your Authorized Diamond Retailer assist you in designing and building an enclosure to
suit your vehicle. For more information on selecting the best subwoofer enclosure, visit www.diamondaudio.com
Diamond's CM3 Series subwoofers are primarily designed for use with small sealed enclosures. Good results have been
achieved in vented and bandpass enclosures also.
HIGH PASS ("SUBSONIC") FILTERS MUST BE USED WITH NON-SEALED APPLICATIONS TO PREVENT OVER-EXCURSION AT
INFRASONIC FREQUENCIES.
INSTALLATION
DIMENSIONS AND VOLUME
FEATURES
DIMENSION
A (Bolt Circle dia.)
B (Outside dia.)
C (Height)
D (Thru Hole dia.)
Displacement (L) CM3 08
197mm
216mm
105mm
188mm
0.92 L CM3 10
245mm
262mm
143mm
233mm
1.69 L CM3 12
298mm
315mm
158mm
282mm
2.22 L CM3 15
370mm
390mm
188mm
354mm
3.63 L
METRIC DIMENSIONS
DIMENSION
A (Bolt Circle dia.)
B (Outside dia.)
C (Height)
D (Thru Hole dia.)
Displacement (Ft
3 )
CM3 08
7.755"
8.503"
4.133"
7.401"
0.0325 CM3 10
9.645"
10.314"
5.629"
9.173"
0.0596 CM3 12
11.732"
12.401"
6.220"
11.102"
0.0784 CM3 15
14.566"
15.354"
7.401"
13.937"
0.1281
IMPERIAL DIMENSIONS
Model
SPL
Qms
Qes
Qts
Fs
Vas
Cms
Mms
Sd
BL
Re
Xmax (mm)
Znom(Series)
Vb (Net vol ft 3 )
F3 (Hz)
Pe (Watts)
Qtc (@ max power)
Vb (Net vol ft 3 )
F3 (Hz)
Fb (Tuning freq.)
Pe (Watts)
Ports
Port I.D.
Port Length
CM308D2
83
6
0.647
0.584
46
7.5
0.133
80
0.0200
11.5
3.3
7.75
(.305")
4
0.27~ 0.68
65~58
500~250
0.9~1.2
0.4
46
49
400
2
2"
15"
CM308D4
83
6
0.63
0.57
49.03
7.4
0.132
80
0.0200
16.6
7.04
8.15
(.321")
8
0.27~ 0.68
65~58
500~250
0.9~1.2
0.4
46
49
400
2
2"
15"
CM310D2
84
6.9
0.605
0.557
40.39
14.0
0.091
170
0.0330
15.1
3.2
11
(.433")
4
0.50~1.0
58~52
500~300
0.9~1.2
0.75
42
41
400
1
3"
13"
CM310D4
84
5.9
0.699
0.625
41.8
13.3
0.086
168
0.0330
20.1
6.4
11.9
(.468")
8
0.50~1.0
58~52
500~300
0.9~1.2
0.75
42
41
400
1
3"
13"
CM312D2
86
6.2
0.72
0.64
37.4
28.8
0.085
213
0.0490
15.2
3.3
11
(.433")
4
0.6~1.2
55~46
500~300
0.9~1.2
1.5
43
38
400
1
4"
13"
CM312D4
86
6.4
0.79
0.70
40.0
26.8
0.0792
200
0.0490
20.3
6.4
11.9
(.468")
8
0.6~1.2
55~46
500~300
0.9~1.2
1.5
43
38
400
1
4"
13"
CM315D2
88
8.0
0.69
0.64
30
86.58
0.0977
288
0.0790
16.1
3.3
11
(.433")
4
1.2~2.0
47~40
500~300
1.0~1.2
4
42
38
400
1
6"
9"
CM315D4
88
8.00
0.75
0.68
30.0
82.6
0.0938
300
0.079
22.0
6.4
12
(.472")
8
1.2~2.0
47~40
500~300
1.0~1.2
4
42
38
400
1
6"
9"
THIELE/SMALL PARAMETERS
SEALED ENCLOSURE
VENTED ENCLOSURE
A
B
C
D