JBL Grand Touring GTO1214D User Manual

®
GRAND TOURING  
SERIES  
GTO1014  
GTO1014D  
GTO1214  
GTO1214D  
GTO1514  
GTO1514D  
THANK YOU  
®
®
for purchasing a JBL Grand Touring Series subwoofer.  
Subwoofer installation requires woodworking skills and some  
experience in disassembling and reassembling automotive  
interiors. If you lack the tools or necessary skills, have your  
subwoofer installed by an authorized JBL dealer.  
CONNECTING YOUR SUBWOOFER TO YOUR AMPLIFIER  
JBL Grand Touring Series GTO  
subwoofers are available in two  
different configurations: a single  
4-ohm voice coil or dual 4-ohm  
voice coils. You may use GTO  
subwoofers in singles or multiples  
to maximize the power available  
from your amplifier(s). To achieve  
the maximum amplifier output  
possible, you should design a  
speaker system that provides  
the lowest impedance that your  
amplifier will drive safely. When  
designing a subwoofer system,  
consider the following rules:  
2. You may connect the coils of a  
dual-voice-coil woofer in series,  
but we recommend that you avoid  
connecting separate woofers in  
series.  
To design a subwoofer system  
that maximizes available amplifier  
power, keep the following rules  
in mind:  
Figure 1. Parallel connection  
1. The total system impedance  
of woofers in parallel can be  
calculated using the formula:  
3. You must use both coils of a dual-  
voice-coil woofer connected  
either in series or in parallel.  
1
Figure 2. Series connection  
Impedance=  
1
w1  
1
1
w3  
...  
4. Most amplifiers deliver exactly  
the same amount of power  
bridged into a 4-ohm load as  
they do running a 2-ohm stereo  
load.  
+
+
w2  
where w is the nominal  
impedance of the woofer.  
2. The total system impedance  
of voice coils (or woofers) in  
series can be calculated using  
the formula:  
1. Do not mix different subwoofers  
or enclosure types in the same  
system. Subwoofers being used  
in the same enclosure or  
powered by the same amplifier  
should be identical models.  
Mismatched woofers and  
enclosures can result in poor  
performance from your subwoofer  
system.  
Impedance = w1 + w2 + w3 ...  
The diagrams at right show parallel  
and series speaker connections.  
3
SPECIFICATIONS  
GTO1014  
10" 4-Ohm  
Subwoofer  
GTO1014D  
10" Dual 4-Ohm  
Subwoofer  
GTO1214  
12" 4-Ohm  
Subwoofer  
GTO1214D  
12" Dual 4-Ohm  
Subwoofer  
GTO1514  
15" 4-Ohm  
Subwoofer  
GTO1514D  
15" Dual 4-Ohm  
Subwoofer  
Power Handling, RMS  
Power Handling, Peak  
Sensitivity (2.83V/1m)  
Frequency Response  
Impedance  
350W  
350W  
350W  
350W  
350W  
350W  
1400W  
1400W  
1400W  
1400W  
1400W  
1400W  
88dB  
91dB  
90dB  
93dB  
93dB  
96dB  
25Hz – 400Hz  
4 Ohms  
25Hz – 400Hz  
8 Ohms/2 Ohms  
5-7/8" (148mm)  
9" (228mm)  
23Hz – 400Hz  
4 Ohms  
23Hz – 400Hz  
8 Ohms/2 Ohms  
6-5/16" (160mm)  
11" (278mm)  
23Hz – 400Hz  
4 Ohms  
23Hz – 400Hz  
8 Ohms/2 Ohms  
Mounting Depth  
5-7/8" (148mm)  
9" (228mm)  
6-5/16" (160mm)  
11" (278mm)  
6-13/16" (172mm) 6-13/16" (172mm)  
13-15/16" (354mm) 13-15/16" (354mm)  
Cutout Diameter  
Overall Diameter  
10-9/16" (268mm) 10-9/16" (268mm) 12-5/16" (313mm) 12-5/16" (313mm) 15-5/16" (389mm) 15-5/16" (389mm)  
A valid serial number is required for warranty coverage.  
Features, specifications and appearance are subject to change without notice.  
These products are designed for mobile applications and are not intended for connection to the mains.  
Declaration of Conformity  
Harman Consumer Group, Inc.  
250 Crossways Park Drive, Woodbury, NY 11797 USA  
516.255.4JBL (4525) (USA only) www.jbl.com  
We, Harman Consumer Group, Inc.  
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:  
© 2008 Harman International Industries, Incorporated. All rights reserved.  
JBL and Grand Touring Series are trademarks of Harman International Industries,  
Incorporated, registered in the United States and/or other countries.  
EN 61000-6-3:2001  
EN 61000-6-1:2001  
Klaus Lebherz  
Harman Consumer Group, Inc.  
Château du Loir, France 3/08  
Part No. GTO-14SUBOM3/08  
www.jbl.com  

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