User manual JBL GTQ240

[. . . ] GRAND TOURING SERIES 4/3/2 Channel Automotive Power Amplifier GT Q 3 6 0 , GT Q 2 4 0 O w n e r ' s M a n u a l GENUINE JBL 1. 2. 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Design Using the GTQ360 and GTQ240 . . 3 3 3 3 3 4 4 4 5 5 5 5 4. 3 Remote-In/Out Connection . [. . . ] Scrape all paint and primer off the sheet metal at the grounding point to ensure a good electrical connection. Attach the wire to the grounding point with a nut, bolt and star washer. The high current demanded by high-powered amplifiers requires a more secure ground than the typical sheet-metal screw will provide. Coat the connection with silicon sealant for better long-term reliability. (­) Series Wiring (+) 8 ohms Nominal Impedance 4 ohms (­) 4 ohms · The remote power control system turns the GTQ amplifier off when not in use to prevent discharging of the vehicle's battery. Because the JBL GTQ amplifiers include Common Sense 2-way turn-on, when using the speaker-level inputs with a head unit that includes a BTL power amp it is not necessary to connect the remote wire. The amplifier will automatically activate whenever you turn on the head unit. If you are using the line-level inputs, or the speaker-level inputs with a head unit that does not have a BTL power amp, use the following remote wire connections. · Using the REM-IN feature ­ When +12 volts is applied to the remote IN/OUT terminal the amplifier is turned on. A red LED on the top panel of the amplifier will illuminate to indicate the amplifier is on. If the head unit has a +12 volt automatic antenna or amplifier remote activation wire, connect it to the REM-IN/OUT connector on the GTQ amplifier. When the amplifier is turned on, there is a time delay of several seconds (longer in cold weather) before the amplifier will produce sound. This eliminates the chance of annoying noises produced by the radio or signal processors being amplified and passed to the speakers when the system is first activated. · Some head units have no automatic antenna or power amp activation wire. Others have automatic antenna wires that are "on" only when the radio is used but not when a tape is played. In such cases, connect the remote-in turn-on terminal to an unused accessory terminal in the fuse block, or any other +12 volt source that is turned on and off with the vehicle's ignition switch. The remote on/off system 5 Cassette/CD Tuner Speaker-Level Output Connection (Use only when line-level output is not available) A. Satellite/Subwoofer Subwoofer (Low-Pass) (­) High-Pass Satellite Crossover Frequency: 100Hz C: 300µF capacitor 100V, non-polarized Subwoofer Low-Pass Crossover Frequency: 100Hz (­) (+) Cassette/CD Tuner CD Player or Changer Left Tweeter/Midrange Satellites (High-Pass) (+) C (+) C Right (­) L Antenna Input Power Antenna Cassette/Receiver Power Supply Wires CD Input Amplifier Speaker Level Inputs L: 6. 2mH air core inductor GTQ360 Power Antenna Relay Black - Power Ground Remote Antenna Blue (Blue/White) Remote On/Off Cassette/CD Preamp Output Fuse Fuse Amplifier Power Connection Amplifier Speaker Output Connection L GR1 LINE LEVEL INPUT GR2 PREAMP OUTPUTS GR1 GR2 SPEAKER LEVEL INPUTS SPEAKER OUTPUTS (BRIDGED: R+TOL­) R GR2 L L GR1 R L GR2 + +­ ­+ + + R + FUSE 30A REM FUSE IN/OUT 30A POWER MUTE Yellow - Back Up Power Red - Main +12V Antenna Motor Power Supply R +­ ­+ R GR1 L ­ ­ ­ ­ + ­ Blue w/White Stripe - Remote On/Off Amplifier Speaker Output Connection (Not Included) Fuse *You may change the subwoofer satellite crossover frequency by using the Inductor and Capacitor values calculated with the following formulas: Speakers High-Pass (Satellite Crossover): 30, 000 Desired crossover Frequency in Hz = New Capacitor Value in µF 30A 30A BATT(+) GND Ignition Switch + + ­ Speakers 620 Low-Pass (Subwoofer Crossover): Desired crossover Frequency in Hz = New Inductor Value in mH B. Center Channel Center Channel Bridged Speaker Connection* Main +12V Amplifier Speaker Output Connection ­ + + )­( 8 Minimum Vehicle Battery Power Ground )+( 8 L-Pad (Optional but Recommended) GTQ360 Chassis Ground LINE LEVEL INPUT GR2 PREAMP OUTPUTS GR1 GR2 SPEAKER LEVEL INPUTS SPEAKER OUTPUTS (BRIDGED: R+TOL­) R GR2 L L GR1 R L GR2 + +­ ­+ + + GR1 L R + FUSE 30A REM FUSE IN/OUT 30A POWER MUTE R +­ ­+ R GR1 L ­ ­ ­ ­ 30A 30A draws negligible current so a relatively small (18 or 20 gauge) wire may be used. · Using the REM-OUT feature ­ The REMIN/OUT terminal of the GTQ amplifier may be used to turn on other amplifiers when the GTQ amplifier is being turned on by the Common Sense circuitry in the speaker-level input. Simply connect the head unit speaker-level outputs to the GTQ amplifier speaker-level inputs and connect the REM-IN/OUT terminal to the remote-in terminal of other amplifiers or signal processors. The GTQ amplifier will turn on the other amps or processors whenever the Common Sense circuitry turns on the GTQ amplifier. BATT(+) GND * Center Channel Speaker Minimum 8 Ohms, Main Speakers Minimum 4 Ohms When Used Simultaneously. Stereo, Non-Bridged Speaker Connection* )+( )­( )­( )+( 4 Minimum 4 Minimum Simultaneous Stereo-Mono Connection Diagrams 6 5. Internal Adjustments 5. 1 Speaker-Level Input Impedance Adjustments The speaker level inputs of the GTQ amplifiers come factory-set with 100k ohm input impedance. [. . . ] Bass output from speakers too low · Speaker wired out of phase; check for proper polarity on all speaker wiring (+ amp terminal to + speaker terminal and ­ amp terminal to ­ speaker terminal). Power light is blinking and no sound is heard · Incorrectly connected or shorted speaker wires; check for shorts in wiring. · Defective GTQ amplifier; if there is no short on the speaker outputs, the GTQ amplifier may be broken. Consult your JBL dealer. 10 Specifications GTQ360 Power Output (20Hz ­ 20kHz, 14. 4V Battery Voltage) Signal-to-Noise Ratio Frequency Response Damping Factor Slew Factor Line-Level Input Sensitivity (For Rated Power) Line-Level Input Impedance Speaker-Level Input Impedance Speaker-Level Input Sensitivity Preamp Output Level Preamp Input: Speaker Input: Minimum Speaker Impedance Single-Ended (Non-Bridged): Bridged: Built-in Electronic Crossover Frequency and Slope 60 Watts x 4 (4 Ohms, 0. 05% THD) 90 Watts x 4 (2 Ohms, 0. 08% THD) 180 Watts x 2 (Bridged 4 Ohms, 0. 08% THD) 100dBA 10Hz ­ 50kHz (+0, ­1dB) 20Hz ­ 20kHz (+0, ­ 0. 1dB) > 200 >5 100mV ­ 4V RMS 10k Ohms 15 Ohm or 100k Ohm (Selectable by Internal Jumpers) 200mV ­ 8V RMS V out = V in V out = 1/2 V in 2 Ohms 4 Ohms 18dB per Octave Low-Pass Filter, Frequency Chips Available from 50Hz ­ 5kHz Factory Setting: 80Hz 18dB per Octave High-Pass Filter, Frequency Chips Available from 50Hz ­ 5kHz Factory Setting: 80Hz +4dB at 40Hz 5V to 12V 11 to 16V DC Negative Ground 30 Amp ATC Type Fuse (2 per Amplifier) 2 x 11-1/4 x 14" (51 x 286 x 356mm) 13. 5 lbs (6. 12 kg) Molex Mini-Fit Jr #39-01-2080 Metal Pins: 39-00-0038 GTQ240 45 Watts x 4 (4 Ohms, 0. 05% THD) 60 Watts x 4 (2 Ohms, 0. 08% THD) 120 Watts x 2 (Bridged 4 Ohms, 0. 08% THD) 100dBA 10Hz ­ 50kHz (+0, ­1dB) 20Hz ­ 20kHz (+0, ­ 0. 1dB) > 200 >5 100mV ­ 4V RMS 10k Ohms 15 Ohm or 100k Ohm (Selectable by Internal Jumpers) 200mV ­ 8V RMS V out = V in V out = 1/2 V in 2 Ohms 4 Ohms 18dB per Octave Low-Pass Filter, Frequency Chips Available from 50Hz ­ 5kHz Factory Setting: 80Hz 18dB per Octave High-Pass Filter, Frequency Chips Available from 50Hz ­ 5kHz Factory Setting: 80Hz +4dB at 40Hz 5V to 12V 11 to 16V DC Negative Ground 40 Amp ATC Type Fuse 2 x 11-1/4 x 12" (51 x 286 x 305mm) 11. 1 lbs (5. 03 kg) Molex Mini-Fit Jr #39-01-2080 Metal Pins: 39-00-0038 Bass Boost Frequency and Magnitude Mute Trigger Voltage Power Requirement Fuse Size Size (HxWxL) Weight Speaker-Level Input Mating Connector 11 Warranty Terms: 1 Year Transferable Limited Warranty / 2 Year Extended Transferable Limited Warranty (USA Only) Declaration of Conformity We, JBL Europe A/S Kongevejen 194B DK-3460 Birkerød DENMARK This is an important document. 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