User manual JBL CS12

subwoofer owner's manual THANK YOU for purchasing JBL CS Series® automotive speakers. We've organized this manual to make your installation as simple and trouble-free as possible. Please read it thoroughly before proceeding. Remember to keep your sales receipt and this manual in a safe place so both are available for future reference. INSTALLATION WARNINGS AND TIPS ABOUT THESE INSTRUCTIONS Subwoofer installation often requires woodworking skills and some experience disassembling and reassembling automotive interiors. If you lack the tools or necessary skills, have your subwoofer installed by an authorized JBL dealer. In order that we may better serve you should you require warranty service, please note your serial number, and retain your original sales receipt WARNING! LOUD MUSIC AND HEARING Playing loud music in an automobile can permanently damage your hearing as well as hinder your ability to hear traffic. We recommend listening at low levels while driving. JBL accepts no liability for hearing loss, bodily injury or property damage resulting from use or misuse of this product. CHOOSING AN ENCLOSURE CS subwoofers are optimized to perform best in small, sealed, vented and prefabricated bandpass enclosures. While infinite-baffle mounting of CS subs is possible, power handling will be greatly compromised because there's no enclosed volume of air to prevent the speaker's cone from moving past its limit. For this reason, we do not recommend infinite-baffle mounting for CS subwoofers. You should choose the enclosure you will use based on the type of music you listen to, how much amplifier power you will use for the subwoofer and how much space inside the vehicle you can devote to a subwoofer enclosure. Because a sealed enclosure provides the most control over the woofer's movement, a woofer mounted in a sealed enclosure will handle more power than a woofer mounted in other enclosure type. Sealed enclosures provide more accurate sonic reproduction than other enclosure types, so they are well suited to all types of music. Sealed-enclosure construction is straightforward and there are many prefabricated sealed enclosures available. An optimum sealed enclosure is always smaller than other types of enclosures optimized for a particular speaker, so it requires the least amount of space inside the vehicle. Vented enclosures provide better efficiency in the 40Hz ­ 50Hz range but this efficiency comes at the expense of sound in the lowest octave (below 40Hz) and at the expense of some control and power handling. If you are using a small amplifier, a vented box will provide more bass output from less power. Vented enclosures are also well suited to a variety of music types. Because vented enclosures require the volume of the enclosure and the size of the port to have a specific relationship with the characteristics of the woofer, the enclosure must be built exactly to the specifications provided. While there are some prefabricated vented boxes available, matching a prefabricated box to a particular woofer is difficult. If you wish to use a vented enclosure, we strongly recommend having your authorized JBL dealer build it, or at least verify that your design is correct if you wish to build it yourself. An optimum vented enclosure is always larger than the optimum sealed box for the same woofer and will require more space inside the vehicle. Bandpass enclosures often provide the greatest output available from any amplifier/subwoofer combination, albeit at the expense of sonic accuracy. If sheer SPL (sound pressure level) is what you desire most, choose a bandpass enclosure. Because bandpass-enclosure design is tricky, using a computer and enclosure-design software is necessary. If you are an experienced installer or have some woodworking skills, you may wish to build the enclosure described in the "Specifications" chart in this manual. Fortunately, however, there are many prefabricated bandpass boxes available and they are all optimized to extract the greatest possible output from any woofer. Be aware that bandpass enclosures can be quite large and may require a lot of space inside your vehicle. SPECIFICATIONS CS12 500W Peak, 125W RMS 92dB 38Hz ­ 500Hz 127mm 277mm 4 ohms 3.58 ohms 24.7Hz 144 Liters 7.34 0.41 0.39 119g 2.3mH 35 Liters 50 Liters 60mm 130mm 35 Liters 50 Liters 120mm 60mm CS10 400W Peak, 100W RMS 91dB 38Hz ­ 800Hz 116mm 229mm 4 ohms 3.6 ohms 29.6Hz 63 Liters 6.87 0.44 0.42 85g 2mH 30 Liters 40 Liters 50mm 160mm 30 Liters 40 Liters 100mm 130mm declare in own responsibility that the products described in this owner's manual are in compliance with technical standards: EN 55013/A14:1999 EN 55020/A14:1999 Power Handling Sensitivity (2.83V, 1m) Frequency Response Mounting Depth Cut-Out Diameter Thiele and Small Parameters Nominal Impedance: Revc Fs Vas Qms Qes Qts Mms Levc Sealed-Enclosure Specifications Enclosure Volume Vented-Enclosure Specifications Enclosure Volume Port Diameter Port Length Bandpass-Enclosure Specifications Sealed-Chamber Volume Vented-Chamber Volume Port Diameter Port Length Declaration of Conformity We, Harman Consumer International 2, route de Tours 72500 Chateau-du-Loir France Emmanuel Millot Harman Consumer International Chateau-du-Loir, France. 5/03 General Care The loudspeaker grilles may be cleaned with a damp cloth. Do not use any cleaners or solvents on the grilles or the speaker cones. A valid serial number is required for warranty coverage. Features, specifications and appearance are subject to change without notice. JBL Consumer Products 250 Crossways Park Drive, Woodbury, NY 11797 USA 1.800.336.4JBL (4525) · FAX 1.516.682.3523 · www.jbl.com © 2003 Harman International Industries, Incorporated JBL is a registered trademark of Harman International Industries, Incorporated. Part No. CSSUBOMEURO5/03