Detailed instructions for use are in the User's Guide.
GRAND TOURING SERIES
®
GTO327 GTO427 GTO527 GTO627 GTO637 GTO6427 GTO6527 GTO6527S GTO6537 GTO837 GTO8627 GTO927 GTO937
multielements owner's manual
THANK YOU for purchasing a JBL® Grand Touring® 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 Installation of automotive stereo components can require extensive experience with a variety of mechanical and electrical procedures. Although these instructions explain how to install Grand Touring Series multielement speakers in a general sense, they do not show the exact installation methods for your particular vehicle. If you do not feel you have the necessary experience, do not attempt the installation yourself  instead, ask your authorized JBL car audio dealer about professional installation options. LOUD MUSIC AND HEARING Playing loud music in an automobile can hinder your ability to hear traffic as well as permanently damage your hearing. The maximum volume levels achievable with JBL speakers, combined with high power amplification, may exceed safe levels for extended listening. We recommend using low volume levels when driving. JBL accepts no liability for hearing loss, bodily injury or property damage as a result of use or misuse of this product. REAR DECK PRECAUTION In some cars, the fuel tank may be located directly beneath the rear deck. Before installation, make sure there is adequate speaker basket clearance before considering this location. INSTALLATION TIPS · Always wear protective eyewear when using any tools. · Turn off all audio components and other electrical devices before you start. Disconnect the (Â) negative lead from your vehicle's battery. · Keep speakers in their package until final installation. When moving a speaker, always rest it with the cone or dome facing up. Never use force to install any speaker. · Check clearances on both sides of a planned mounting surface before drilling any holes or installing any screws. Remember that the screws can extend behind the surface. · At the installation sites, locate and make a note of all fuel lines, hydraulic brake lines, vacuum lines and electrical wiring. Use extreme caution when cutting or drilling in and around these areas. · Before drilling or cutting holes, use a utility knife to remove unwanted fabric or vinyl to keep material from snagging in a drill bit or saw. · For door installations, check the clearance with the windows throughout the range of the window's travel, and verify that a mounted speaker will not interfere with the window crank or power window mechanism. · If mounting speakers elsewhere, check for clearance around rear deck torsion bars, glove box or other structural elements. · Do not mount speakers where they will get wet.
INSTALLATION
UNIPOINT TM ROTATING TWEETER Figure 1. Turn the angled tweeter on the GTO527, GTO627, GTO6527, GTO8627 and GTO927 to aim the sound at the listener.
TWEETER LEVEL CONTROL Figure 2. Move the tweeter level control switch on the GTO527, GTO627, GTO637, GTO6527, GTO6527S, GTO6537, GTO837, GTO8627, GTO927 and GTO937 to select 0dB (reference) or +3dB.
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INSTALLATION
Figure 3. Modifying the GTO427 to be installed in locations requiring fewer than four mounting "ears." Figure 4. Mounting GTO speakers in factory locations without grilles. INTERMOUNT III (patent no. 6,505,705) MOUNTING RINGS The GTO627 and GTO637 are packaged with two different speaker adapter rings. The rings will allow the speakers to be installed into various factory 6," 6-1/2" and 6-3/4" openings. The metal ring can be mounted in many European vehicles, Japanese vehicles or vehicles with 6" speaker locations. The plastic ring can be mounted in many vehicles using 6-3/4" speaker locations or three-point mounting frames. Figure 6. Mounting the GTO627 or GTO637 using the supplied metal ring. Installation with the plastic ring is similar. Figure 7. Mounting the GTO627 or GTO637 in a standard speaker location.
Note: Grip the tab and bend to detach it from the speaker.
FOAM GASKET
Figure 5. Mounting GTO speakers using the supplied grilles.
Note: The GTO8627, GTO6427 and GTO327 speakers are designed to be installed under factory grilles. Consequently, no grilles are packaged with these models.
FOAM GASKET MOUNTING RING
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SPECIFICATIONS
Type Power Handling Sensitivity (2.83V/1m) Frequency Response Impedance Mounting Depth Cutout Diameter Overall Diameter GTO327 3-1/2" Two-way 25W RMS, 75W Peak 89dB 90Hz  20kHz 2 Ohms 1-7/16" (37mm) 3-3/16" (81mm) 3-7/16" (88mm) GTO427 4" Two-way 35W RMS, 105W Peak 90dB 90Hz  20kHz 2 Ohms 2" (51mm) 3-1/2" (89mm) 3-15/16" (101mm) GTO527 5-1/4" Two-way 45W RMS, 135W Peak 91dB 70Hz  21kHz 2 Ohms 2-5/16" (59mm) 4-11/16" (120mm) 5-1/8" (131mm) GTO627 6-1/2" Two-way 60W RMS, 180W Peak 92dB 55Hz  21kHz 2 Ohms 2-1/16" (53mm) 5-1/16" (129mm) 6-1/4" (159mm) GT0637 6-1/2" Three-way 60W RMS, 180W Peak 92dB 55Hz  21kHz 2 Ohms 2-1/16" (53mm) 5-1/16" (129mm) 6-1/4" (159mm) GTO6427 4" x 6" Two-way 40W RMS, 120W Peak 91dB 75Hz  21kHz 2 Ohms 1-13/16" (47mm) GTO6527 165mm Two-way 60W RMS, 180W Peak 92dB 55Hz  21kHz 2 Ohms 2-3/8" (61mm) GTO6527S GTO6537 Shallow 165mm 165mm two-way Three-way 55W RMS, 165W Peak 92dB 55Hz  21kHz 2 Ohms 1-13/16" (47mm) 5-11/16" (145mm) 6-9/16" (167mm) 60W RMS, 180W Peak 92dB 55Hz  21kHz 2 Ohms 2-3/8" (61mm) 5-11/16" (145mm) 6-9/16" (167mm) GTO837 8" Three-way 100W RMS, 300W Peak 94dB 50Hz  21kHz 2 Ohms 2-3/4" (70mm) 7-3/16" (183mm) 9-1/2" (242mm) GTO8627 6" x 8" (5" x 7") Two-way 60W RMS, 180W Peak 92dB 50Hz  21kHz 2 Ohms 2-1/4" (58mm) GTO927 6" x 9" Two-way 100W RMS, 300W Peak 94dB 50Hz  21kHz 2 Ohms 2-15/16" (75mm) GTO937 6" x 9" Three-way 100W RMS, 300W Peak 94dB 50Hz  21kHz 2 Ohms 2-15/16" (75mm)
3-7/16" x 5-13/16" 5-11/16" (88mm x 148mm) (145mm) 3-3/4" x 6-1/8" 6-9/16" (96mm x 156mm) (167mm)
4-15/16" x 7-3/16" 5-15/16" x 8-11/16" 5-15/16" x 8-11/16" (126mm x 183mm) (151mm x 221mm) (151mm x 221mm) 5-11/16" x 8" 6-1/2" x 9-1/4" 6-1/2" x 9-1/4" (145mm x 204mm) (166mm x 235mm) (166mm x 235mm)
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. These products are designed for mobile applications and are not intended for connection to the mains. A valid serial number is required for warranty coverage. Features, specifications and appearance are subject to change without notice. Not all models are available in all markets. JBL Consumer Products 250 Crossways Park Drive, Woodbury, NY 11797 USA 516.255.4JBL (4525) (USA only) www.jbl.com © 2005 Harman International Industries, Incorporated. All rights reserved. JBL, Harman International and Grand Touring Series are trademarks of Harman International Industries, Incorporated, registered in the United States and/or other countries. Unipoint is a trademark of Harman International Industries, Incorporated. Part No. GTMEOM12/05
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, France 12/05
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