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Table of contents for the manual
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Page 1
THANK YOU for choosing a JBL ® GTi Series subwoofer. GTi subwoofers are designed to provide maximum sound output in a va ri et y of enclosure types while maintaining the superb sound quality associated with JBL. To ensure the best subwoofer performance, we strongly recommend that installation be entrusted to a qualified professional. Although th [...]
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Page 2
2 INST ALLA TION W ARNINGS AND TIPS WARNING Playing loud music in an automobile can hinder your ability to hear traffic, as well as permanently damage your hearing. 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. YOUR CAR A[...]
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Page 3
GTi Series subwoofers are optimized to perform best in small sealed, vented and bandpass enclosures. While infinite- baffle mounting of GTi Series subs is possible, power handling will be compromised since there will be no enclosed volume of air to help the speaker’s suspension control the motion of the woofer’s cone. For this reason, we do n[...]
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Page 4
4 ENCLOSURE CONSTRUCTION Please observe the following suggestions when building an enclosure for GTi Series subwoofers. 1. Choose an enclosure design from the Enclosure Design Sheet included with your subwoofer. 2. Use at least 3/4" (19mm) MDF (medium density fiberboard) or marine birch plywood to build the enclosure. Enclosures for 12" [...]
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Page 5
At extremely high power, each coil will enter the other coil’s magnetic gap. This will cause magnetic braking, which will slow the cone’s motion and prevent damage due to overexcursion. For a GTi Series woofer, X max is determined by the amount of voice-coil overhang between the first and second top plates. See Figure 3. Thermal power handling[...]
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6 CONFIGURING MULTIPLE WOOFERS FOR CONNECTION TO A SINGLE AMPLIFIER Figure 7. Connect two woofers in parallel (with coils in parallel) for a 1.5-ohm load Figure 8. Connect three woofers in parallel (with coils in series) for a 4-ohm load Figure 9. Connect four woofers in parallel (with coils in series) for a 3-ohm load TERMINAL JUMPERS INT ACT + TE[...]
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Page 7
W10GTi MkII W12GTi MkII W15GTi MkII 10" Automotive subwoofer 12" Automotive subwoofer 15" Automotive subwoofer Power handling (peak) 3000W 4000W 5000W Power handling (RMS) 600W 700W 800W Frequency response (in-car) 20Hz – 1kHz, ±3dB 18Hz – 1kHz, ±3dB 16Hz – 1kHz, ±3dB Impedance 3 or 12 ohms 3 or 12 ohms 3 or 12 ohms Sensitiv[...]
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Declaration of Conformity We, Harman Consumer Group International 2, route de Tours 72500 Château du Loir France declare in own responsibility that the products described in this owner’s manual are in compliance with technical standards: EN 61000-6-3:2001 EN 61000-6-1:2001 Klaus Lebherz Harman Consumer Group International Château du Loir, Franc[...]