Summary of the content on the page No. 1
GTi SERIES
W10GTi MkII
W12GTi MkII
W15GTi MkII
automotive
subwoofer
owner’s manual
THANK YOU
®
for choosing a JBL GTi Series subwoofer.
GTi subwoofers are designed to
provide maximum sound output in a
variety 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 these instructions
explain how to install a GTi Series subwoofer
Summary of the content on the page No. 2
INSTALLATION WARNINGS AND TIPS WARNING YOUR CAR AND BASS POWER-HANDLING Thermal power handling is determined Playing loud music in an automobile can REPRODUCTION LIMITATIONS by the amount of heat that may be hinder your ability to hear traffic, as well Depending on the size of the vehicle’s The power-handling capacity of any dissipated by the driver’s voice coil. as permanently damage your hearing. interior listening space, reproduced subwoofer is related to the excursion The power-handling rat
Summary of the content on the page No. 3
CHOOSING AN ENCLOSURE GTi Series subwoofers are optimized to Because a sealed enclosure provides Vented enclosures provide better Bandpass enclosures can provide perform best in small sealed, vented and the most control over the woofer’s efficiency in the 40Hz – 60Hz range, the greatest output available from any bandpass enclosures. While infinite- movement, a woofer mounted in a but this efficiency comes at the expense amplifier and subwoofer combination – baffle mounting of GTi Series subs is seal
Summary of the content on the page No. 4
CONVENTIONAL ENCLOSURE 4. Fill the enclosure with damping DUAL COIL VERSUS Figure 2. Conventional dual-voice-coil DUAL VOICE COIL DESIGN ® ® * CONSTRUCTION material (Dacron, fiberglass insulation DIFFERENTIAL DRIVE design or long-fiber wool) according to the Conventional dual-voice-coil woofers Please observe the following suggestions CONE design you have chosen from the use a pair of voice coils “interwound” on when building an enclosure for GTi BOTH COILS Enclosure Design Sheet. “0% fill” the for
Summary of the content on the page No. 5
CONNECTING YOUR SUBWOOFER TO AN AMPLIFIER At extremely high power, each coil will CONFIGURING Note: Unlike conventional DVC Figure 6. Connecting the voice coils in enter the other coil’s magnetic gap. This THE VOICE COILS subwoofers, the two sets of terminals series (12 ohms) will cause magnetic braking, which will are configured so that both positive (+) Figure 4. Terminal locations slow the cone’s motion and prevent terminals are on one side of the frame TERMINAL TERMINAL JUMPER damage due to o
Summary of the content on the page No. 6
CONFIGURING Figure 8. Connect three woofers in parallel Figure 9. Connect four woofers in parallel MULTIPLE WOOFERS (with coils in series) for a 4-ohm load (with coils in series) for a 3-ohm load FOR CONNECTION TO TERMINAL TERMINAL TERMINAL TERMINAL A SINGLE AMPLIFIER JUMPER JUMPER JUMPER JUMPER REMOVED REMOVED REMOVED REMOVED Figure 7. Connect two woofers in parallel BLACK RED RED BLACK TERMINAL TERMINAL TERMINAL (with coils in parallel) for a 1.5-ohm load TERMINAL TERMINAL TERMINAL JUMPERS JU
Summary of the content on the page No. 7
SPECIFICATIONS 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 Sensitivity (2.83V/1m) 90dB 91dB 92dB Overall diameter 10-1/2" (267mm) 12-1/4" (312mm) 15-1/4" (388mm) Cutout diameter 9-3/16" (234mm) 11" (280mm) 13-7/8" (353mm) M
Summary of the content on the page No. 8
Declaration of Conformity JBL Consumer Products 250 Crossways Park Drive, Woodbury, NY 11797 USA We, Harman Consumer Group International 516.255.4JBL (4525) (USA only) www.jbl.com 2, route de Tours 72500 Château du Loir © 2006 Harman International Industries, Incorporated. All rights reserved. France declare in own responsibility that the products described in this owner’s JBL and Harman International are registered trademarks of Harman International manual are in compliance with technical s
