DIMENSIONS AND VOLUME
A
B
C |
D |
FEATURES
Massive Double Stacked Magnet
-High excursion, maximum efficiency CmaxTM Optimised Spider and Edge
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
IMPERIAL DIMENSIONS
DIMENSION | CM3 08 | CM3 10 | CM3 12 | CM3 15 |
A (Bolt Circle dia.) | 7.755" | 9.645" | 11.732" | 14.566" |
B (Outside dia.) | 8.503" | 10.314" | 12.401" | 15.354" |
C (Height) | 4.133" | 5.629" | 6.220" | 7.401" |
D (Thru Hole dia.) | 7.401" | 9.173" | 11.102" | 13.937" |
Displacement (Ft3) | 0.0325 | 0.0596 | 0.0784 | 0.1281 |
METRIC DIMENSIONS |
| |||
DIMENSION | CM3 08 | CM3 10 | CM3 12 | CM3 15 |
A (Bolt Circle dia.) | 197mm | 245mm | 298mm | 370mm |
B (Outside dia.) | 216mm | 262mm | 315mm | 390mm |
C (Height) | 105mm | 143mm | 158mm | 188mm |
D (Thru Hole dia.) | 188mm | 233mm | 282mm | 354mm |
Displacement (L) | 0.92 L | 1.69 L | 2.22 L | 3.63 L |
INSTALLATION
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
ModelCM308D2 CM308D4 CM310D2 CM310D4 CM312D2 CM312D4 CM315D2 CM315D4
THIELE/SMALL PARAMETERS
SPL | 83 | 83 | 84 | 84 | 86 | 86 | 88 | 88 |
Qms | 6 | 6 | 6.9 | 5.9 | 6.2 | 6.4 | 8.0 | 8.00 |
Qes | 0.647 | 0.63 | 0.605 | 0.699 | 0.72 | 0.79 | 0.69 | 0.75 |
Qts | 0.584 | 0.57 | 0.557 | 0.625 | 0.64 | 0.70 | 0.64 | 0.68 |
Fs | 46 | 49.03 | 40.39 | 41.8 | 37.4 | 40.0 | 30 | 30.0 |
Vas | 7.5 | 7.4 | 14.0 | 13.3 | 28.8 | 26.8 | 86.58 | 82.6 |
Cms | 0.133 | 0.132 | 0.091 | 0.086 | 0.085 | 0.0792 | 0.0977 | 0.0938 |
Mms | 80 | 80 | 170 | 168 | 213 | 200 | 288 | 300 |
Sd | 0.0200 | 0.0200 | 0.0330 | 0.0330 | 0.0490 | 0.0490 | 0.0790 | 0.079 |
BL | 11.5 | 16.6 | 15.1 | 20.1 | 15.2 | 20.3 | 16.1 | 22.0 |
Re | 3.3 | 7.04 | 3.2 | 6.4 | 3.3 | 6.4 | 3.3 | 6.4 |
Xmax (mm) | 7.75 (.305") | 8.15 (.321") | 11 (.433") | 11.9 (.468") | 11 (.433") | 11.9 (.468") | 11 (.433") | 12 (.472") |
Znom(Series) | 4 | 8 | 4 | 8 | 4 | 8 | 4 | 8 |
SEALED ENCLOSURE
Vb (Net vol ft3) | 0.27~ 0.68 | 0.27~ 0.68 | 0.50~1.0 | 0.50~1.0 | 0.6~1.2 | 0.6~1.2 | 1.2~2.0 | 1.2~2.0 |
F3 (Hz) | 65~58 | 65~58 | 58~52 | 58~52 | 55~46 | 55~46 | 47~40 | 47~40 |
Pe (Watts) | 500~250 | 500~250 | 500~300 | 500~300 | 500~300 | 500~300 | 500~300 | 500~300 |
Qtc (@ max power) | 0.9~1.2 | 0.9~1.2 | 0.9~1.2 | 0.9~1.2 | 0.9~1.2 | 0.9~1.2 | 1.0~1.2 | 1.0~1.2 |
VENTED ENCLOSURE
Vb (Net vol ft3) | 0.4 | 0.4 | 0.75 | 0.75 | 1.5 | 1.5 | 4 | 4 |
F3 (Hz) | 46 | 46 | 42 | 42 | 43 | 43 | 42 | 42 |
Fb (Tuning freq.) | 49 | 49 | 41 | 41 | 38 | 38 | 38 | 38 |
Pe (Watts) | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 |
Ports | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
Port I.D. | 2" | 2" | 3" | 3" | 4" | 4" | 6" | 6" |
Port Length | 15" | 15" | 13" | 13" | 13" | 13" | 9" | 9" |
