SD12 INSTALLATION/OWNERS MANUAL Car Audio Subwoofers
SD12 PREPARATION Getting Started Thank you for purchasing a Dual SD12 subwoofer. Although Dual has attempted to make sure all of the information contained within this manual is accurate, please be aware that any part of it is subject to change without notice. Safety 2 CAUTION This symbol is intended to alert the user to the presence of important instructions. Failure to heed the instructions can result in injury or unit damage.
SD12 INSTALLATION Installation CAUTION The following installation instructions are very basic. If you feel unsure about personally installing this speaker system, Dual recommends aquiring the services of a professional car audio installation center. Before installation, please follow the following rules: 1. Be sure to carefully read and understand the instructions before attempting to install this product. 2.
SD12 SPECIFICATIONS Specifications Sensitivity: 88dB Freq. Response: 28Hz-125Hz Nominal Impedance: 4 ohms Peak Power: 500 watts RMS: 175 watts Voice Coil Size: 2" Magnet Size: 38.2oz. Note: All specifications are subject to change without notice.
SD12 GUIDELINES Enclosure Guidelines To achieve the best possible sound from this subwoofer enclosure, Dual recommends aquiring the services of a professional car audio installation center. If you feel confident in your ability to install this product without the assistance of a professional, please read this section thoroughly. We have provided a number of placement recommendations and installation tips to assist you.
SD12 GUIDELINES Enclosure Guidelines To work properly, the walls of your enclosure must be free from flexing during high sound pressure generated by your subwoofer(s). For best performance, always use MDF (Medium Density Fiberboard) or Baltic Birch Plywood to build your enclosure. We highly recommend that your wood be at least 3/4" in thickness. The enclosure should be sealed internally with silicon or glue and secured with screws every 4". Assemble the box before cutting the subwoofer hole(s).
SD12 ENCLOSURE DIMENSIONS Sealed Enclosure Good Bass Performance Mini-Enclosure (Vb) Box Volume=.75 Cu. Ft. Example Dimensions: 14" W x 14" H x 11.5" D Better Bass Performance Small Enclosure (Vb) Box Volume=1.00 Cu. Ft. Example Dimensions: 15" W x 14" H x 13" D Best Bass Performance Medium Enclosure (Vb) Box Volume=1.25 Cu. Ft. Example Dimensions: 17" W x 15" H x 13" D Note: All specifications are subject to change without notice. Attention/Notice: Dimensions are external.
SD12 ENCLOSURE DIMENSIONS Vented Enclosure Good Bass Performance Mini-Enclosure (Vb) Box Volume=1 Cu. Ft. Example Dimensions: 14.25" W x 17" H x 12" D (P) Port=3" ID x 9.7" Long Better Bass Performance Small Enclosure (Vb) Box Volume=1.25 Cu. Ft. Example Dimensions: 14.50" W x 17" H x 14" D (P) Port=3" ID x 10.25" Long Best Bass Performance Medium Enclosure (Vb) Box Volume=1.5 Cu. Ft. Example Dimensions: 14" W x 20.25" H x 14" D (P) Port=3" ID x 11.
SD12 ENCLOSURE DIMENSIONS Bandpass Enclosure Good Bass Performance/Mini-Enclosure (Vf) Box Volume .84 Cu. Ft. (Vr) Box Volume .47 Cu. Ft. (P) Port 4" ID x 1.0" Long (Sb) Speaker baffle location/outside front: 9.25" Example Dimensions: 15" W x 16.5" H x 15" D Better Bass Performance/Small Enclosure (Vf) Box Volume .84 Cu. Ft. (Vr) Box Volume .69 Cu. Ft. (P) Port 4" ID x 2.625" Long (Sb) Speaker baffle location/outside front: 9.25" Example Dimensions: 15" W x 18.
SD12 WARRANTY Limited One-Year Warranty This warranty gives you specific legal rights. You may also have other rights which vary from state to state. Dual Electronics Corp. warrants this product to the original purchaser to be free from defects in material and workmanship for a period of one year from the date of the original purchase. Dual Electronics Corp.
SD12 NOTES Notes 11
Dual Electronics Corporation Toll Free: 1-866-382-5476 www.dualav.com ©2009 Dual Electronics Corp. All rights reserved. NSA1208-V01.
