JBL GTH400-20107 - Manuals - manualsarea.com

Page 3 - Model Number

Table of Contents 1. Introduction ...................................................................................... 3 1.1 Features .................................................................................... 41.2 About Installation ..........................................................

Page 5 - About Installation; all of the information in

4 1.1 Features Theory of Operation – Virtual Center Image Enhancer JBL’s breakthrough “Virtual Center”circuitry is the result of theunderstanding of how the human earresponds to timing, frequency, andamplitude cues to determine theapparent direction of a sound source.Virtual Center circuitry manipul...

Page 6 - Installation and use

5 2. Installation and use Refer to the “Crossover FrequencyAdjustments” and “Speaker-Level InputImpedance Adjustments” sections ofthis manual to see if you will need tomake alterations to their factorysettings. 1. Disconnect the negative cable from the battery. Note: If the vehicle’sradio features a...

Page 7 - Speaker Requirements; Parallel Wiring

3. System Design Using the GTH400 3.1 Speaker Requirements When used in the non-bridged mode agroup-channel of the GTH400 caneasily drive two 2-ohm speaker loads.When only one speaker is connected tothe left and right outputs of a group,virtually any conventional speaker maybe used. When two speaker...

Page 8 - Typical Applications; Application 1; Front; Front

7 3.2 Typical Applications The diagrams on pages 8 & 9 show the most common basic systemconfigurations of the GTH400. One or more of these building blocks may be combined to form elaborate systemdesigns. The GTH400 uses the terminology“Group 1,” “Group 2” and “Group 3” toindicate the three main ...

Page 9 - Application 4; L R; Application 3

8 L L R L R+ L– Application 4 3-Channel Bi-Amplified 4-Channel Input (Fading Subwoofer) L L R R GR 1 GR 3 GR 2 Group 1 Group 2 Group 3 Input Mode L L L+R Group 2 Input – GR 2 – Group 3 Input – – GR 3 Speaker Crossover High Pass High Pass Low Pass Preamp Output Crossover – – – 2-Channel Input (Mono S...

Page 10 - Installation and Use; Controls and Connectors; Speaker Output Connectors –

9 4. Installation and Use 4.1 Controls and Connectors 1. Preamp-Level Input Connector – Use these connectors for line (pre-amp) level inputs to the amplifier. 2. Preamp-Level Output Connector – Use these outputs to send signal to additional amplifiers. 3. Speaker-Level Input Connector – Use this con...

Page 16 - CD Player

15 FACE PLATE DASH PANEL SPACERPLATE (INCLUDED) FACE PLATE Cassette/CD Tuner CD Player or Changer CD Input Cassette/CD Preamp Output Antenna Input PowerAntenna Power Antenna Relay Blue w/White Stripe - Remote On/Off Main +12V Power Ground Chassis Ground Vehicle Battery – + Ignition Switch Antenna Mo...

Page 17 - High-Pass (Satellite Crossover): = New Capacitor Value in

16 is heat- and oil-resistant wheneverrunning wires through the enginecompartment. All wire-to-wireconnections should be soldered andinsulated with heat shrink tubing, orconnected through a high-quality insulated crimp-on connector orsecure set-screw-type terminalblocks. Never leave bare wireexposed...

Page 18 - Adjusting the Gain

17 • The GTH400 will draw as much as 60 amps from the vehicle’s electricalsystem, enough to overloadconventional vehicle wiring. Thereforethe +12 volt power supply must betaken directly from the positive side ofthe battery. Do not connect to the vehicle’s fuseblock or to a wire feeding otheraccessor...

Page 19 - Imaging Enhancer Setup

18 background noise levels in the systemlow. • To adjust a system using a single GTH400, start with all three of theamplifier gain controls fullycounterclockwise and the ImagingEnhancer Remote set to “Bypass”mode. Some head units haveadditional output level controls orswitches. Set those to their ma...

Page 20 - Important Characteristics

19 position for driver-optimized soundstage. 5. Proceed to push and pull the Rear-Ambience knob to hear the effectsof “Driver” and “All” modes. Youshould hear imaging coming fromthe middle of the dashboard whenthe knob is pushed in (“Driver”mode). You should hear stereo withambience recovery when th...

Page 22 - In Case of Difficulty

21 7. In Case of Difficulty Power-on light does not come on • Head unit not on; turn the head unit on. • Ground wire is disconnected or defective; check for continuity with anohmmeter between the amplifier’sground terminal and a known chassisground point. • Battery wire is disconnected or defective;...

Page 25 - Remote Control Drilling Template

24 9/64" (3.5mm) in 4 places 9/64" (3.5mm) in 2 places 25/64" (10mm) drill in 2 places UP UP Remote Control Drilling Template Power Requirement 11 to 16V DC Negative Ground Fuse Size 30 Amp ATC Type Fuse (2 per Amplifier) Size (L x W x H) 15-1/4" x 11-1/4" x 2" (387mm x 286mm...

Page 26 - Staple or clip your original bill of sale here.

25 Staple or clip your original bill of sale here. ▼ GTH400-20107 06/03/98 15:50 Side 25