Boston Acoustics GT-20 Owner'S Manual Download Page 17 | Manualshive

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17

System Examples (cont.)

System C—Single Subwoofer (2

Ω

)

System D —Parallel 4

Ω

Subwoofers (2

Ω

load)

fuse

to

+

battery terminal

to ground

10.5LF

2

Ω

fuse

to

+

battery terminal

to ground

10.5LF

4

Ω

10.5LF

4

Ω

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Summary of Contents for GT-20

Page 1: ...GT 20 GT 22 2 Channel High Current High Power Amplifiers...

Page 2: ...es Wiring 10 Amplifier fuses 10 Wire gauge 10 Installation fuses wiring cont 11 Power B power ground GND connection 11 Remote input connection 11 Speaker output connection 11 Installation fuses wiring...

Page 3: ...ency Response 3dB 10Hz 95kHz 10Hz 95kHz Signal to Noise Ratio A Weighted 100dB 100dB Dimensions HxWxD 21 4x77 8x87 8 57x200x225mm 21 4x121 8x87 8 57x308x225mm GT 20 GT 22 Features 2 Channel High Curre...

Page 4: ...ft position the L R inputs go to the L R channels of the amplifier In the right position the input is for mono operation Input Sensitivity Control Turn control clockwise to increase the amplifier sens...

Page 5: ...he highpass crossover is engaged and is cen tered on the selected crossover point The range of operation is 0 7 1 2 Status LED Indicators GREEN indicates the normal operating condition the amplifier i...

Page 6: ...ulti position Mounting Feet The mounting feet are designed to slide in both directions to clear installation obstructions on the mounting surface WARNING Before driving the mounting screws through any...

Page 7: ...used together without additional hardware Wire Connection Amplifier accepts stripped wire directly into the terminal blocks Speaker outputs accept 8 gauge and the DC power and ground accept 4 gauge Ti...

Page 8: ...n correctly the electrical system of the vehicle should be professional ly checked for overall electrical capacity When used the amplifier will increase the demand on the battery and alternator Theref...

Page 9: ...ble Never mount an amplifier in the engine compartment of a vehicle WARNING Before driving the mounting screws through any surface be sure of what is behind that sur face Check for gas tank brake line...

Page 10: ...wedging into position Amplifier should be mounted using the movable mounting feet and the provided mounting screws Installation Fuses Wiring Installation Amplifier Mounting cont Amplifier Fuses Altho...

Page 11: ...se the supplied FEMALE quick connector to connect the REMOTE trig ger lead from the head unit to the amplifier Crimp connector to wire from head unit that controls remote turn on refer to head unit ow...

Page 12: ...and should be used 2 Input Sensitivity Control Turn control all the way counterclockwise minimum position In this position the amplifier will be less sensitive to the input signal from the head unit S...

Page 13: ...350Hz Rotate Q Control fully coun terclockwise Move crossover switch to the right ON position Slowly rotate the Input Sensitivity control clockwise until maximum undistorted playing level is heard fro...

Page 14: ...ing be left in the 0 7 position and adjusted only after the input sensitivity and highpass crossover ranges are known Small adjustments to the Q setting are all that are required to fine tune the syst...

Page 15: ...ative to the front loudspeakers Correct electrical phase does not always mean correct acoustic phase Swap positive and negative connections at the speaker outputs where the subwoofer is connected to t...

Page 16: ...16 System Examples System A Full range Front Speakers fuse to battery terminal to ground 6 5LF 6 5LF System B Rear Fill Speakers fuse to battery terminal to ground 6 5LF 6 5LF...

Page 17: ...17 System Examples cont System C Single Subwoofer 2 System D Parallel 4 Subwoofers 2 load fuse to battery terminal to ground 10 5LF 2 fuse to battery terminal to ground 10 5LF 4 10 5LF 4...

Page 18: ...eck equipment and cables leading to amplifier Verify RCA cables are of good quality with no breakage to internal shields RCA cables from source to amplifier are not run alongside power Amplifier Outpu...

Page 19: ...ties are to use the system according to the instructions supplied to provide safe and secure transportation to an authorized Boston Acoustics service representative and to present proof of purchase in...

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