Boston GT-50 Owner'S Manual Download Page 1 | Manualshive

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GT-50

5-Channel, High-Current/High-Power Amplifier

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Summary of Contents for GT-50

Page 1: ...GT 50 5 Channel High Current High Power Amplifier All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...nnection 11 Remote input connection 11 Speaker output connection 11 Installation fuses and wiring cont 12 Mono subwoofer operation 12 Setup Tuning Full Range Speakers 12 Music 12 Front rear and subwoofer sensitivity controls 12 Front rear and subwoofer crossover controls 12 Setup tuning full range speakers cont 13 Head unit 13 Volume 13 Front and rear input sensitivity control 13 Front and rear cr...

Page 3: ...B 10Hz 95kHz Signal to Noise Ratio A Weighted 100dB Dimensions 21 4x215 8x87 8 57 x 548 x 225mm GT 50 Features 5 Channel High Current Amplifier 2Ω Mono Operation Advanced Cooling Allows Varied Mounting Positions Adjustable Feet for Varied Mounting Surfaces Security Cover Protects Control Settings Power Increase with Input Voltage Rise Continuously Variable Crossovers and Q factor Settings Selectab...

Page 4: ...amplifier sensitivity FRONT and REAR Highpass Crossover Controls To use 12dB octave crossover move switch to right hand position Highpass crossover frequency is adjustable from 20Hz to 350Hz by rotary control Moving switch to left hand position will bypass crossover functions HIGHPASS OFF ON 20 350 Hz 200 1 2 1 2 3 4 POWER B B POWER GND GND L R FRONT SPEAKER OUTPUT L R REAR SPEAKER OUTPUT SUBWOOFE...

Page 5: ...or dual subwoofer output from head unit Use left L input only when single subwoofer output is to be connected Lowpass Slope and Crossover Controls Select appropriate crossover slope of 12 or 24dB octave by moving LOWPASS SLOPE switch Lowpass crossover frequencies are adjustable from 50Hz to 350Hz by rotary control SUBWOOFER Mode Switch Move switch to left position MONO L R when used with L R subwo...

Page 6: ...screws through any surface be sure of what is behind that surface Check for the gas tank brake lines and any vehi cle wiring harness 1 inch 1 inch Control Functions cont Subwoofer Level Control and Port Switch should be set to OFF when control circuit is not installed see optional subwoofer level control owner s manual 12 cover panel 11 Status LED Indicators GREEN indicates the normal operating co...

Page 7: ... side panels enables multiple amplifiers to be 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 Tighten with supplied hex wrenches Fuses Amplifier accepts standard AT style automotive blade fuses 7 upper side vent lower side vent FUSE 3 x 30A GT 50 GT...

Page 8: ...trical 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 Therefore both should be thoroughly evaluated before installing the amplifier to ensure they are in normal operating condition and able to handle the increased demand the amplifier will present to the vehicle s electrical syst...

Page 9: ...NSITIVITY 2 6 0 7 1 2 Q HP 0 95 REMOTE SUBWOOFER LEVEL STEREO GT 50 9 548mm 215 8 Choose the Mounting Location Plan your installation so that the amplifier is mounted where adequate ventilation is available 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 l...

Page 10: ...Amplifier should be mounted using the movable mounting feet and the provided mounting screws Installation Fuses and Wiring Installation Amplifier Mounting cont Amplifier Fuses Although the amplifier has internal fuses additional fusing should be pro vided at the battery on the positive power wire going to the amplifier An inline fuse should be installed at no more than 18 46cm on the pos itive pow...

Page 11: ...e the supplied FEMALE slide 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 owner s manu al Once the slide connector is crimped into place carefully push connector onto recessed male REMOTE terminal adjacent to the RCA Input pair Only one 1 remote turn on terminal should be conn...

Page 12: ...se characteristics and should be used 2 FRONT REAR and SUBWOOFER Sensitivity Controls Turn controls all the way counterclockwise minimum position In this position the amplifier will be less sensitive to the input signal from the head unit Setup Tuning Full Range Speakers FRONT and REAR crossover controls SUBWOOFER crossover control SUBWOOFER OUTPUT HIGHPASS OFF ON 20 350 Hz 200 SUBWOOFER LEVEL OFF...

Page 13: ...counterclockwise Move crossover switch to the right ON position Slowly rotate FRONT input sensitivity control clockwise until maximum undis torted playing level is heard from the speakers Listen closely for bottoming from the speakers If detected rotate FRONT input sensitivity control coun terclockwise until it is eliminated Slowly rotate FRONT highpass crossover control counterclockwise while lis...

Page 14: ...g are all that are required to fine tune the system Setup Tuning Full Range Speakers cont 9 REAR Input Sensitivity and Crossover Controls Setting levels for the rear channels proceeds the same as for the front except for the elimination of the Q control settings Crossover selector switch must be set to HP and filter switch must be set to ON If the loudspeaker being used is capable of full range op...

Page 15: ...negative connections at the speaker outputs where the subwoofer is connected to the amplifier It is beneficial to listen to the subwoofer connected in both phase conditions The subwoofer should be left in the condition in which the strongest bass response is noted Setup Tuning Subwoofers cont 3 Head Unit The head unit should have all controls such as bass treble balance and fader set to the flat o...

Page 16: ...ar and Single 2Ω Subwoofer 2Ω load L R L R O N O N S A F E S A F E 6 5LF 6 5LF fuse to battery terminal to ground fuse to battery terminal to ground 12 5LF 6 5LF 6 5LF All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 17: ...fers 2Ω load with Discrete Subwoofer Input L R L R O N O N S A F E S A F E 6 5LF 6 5LF fuse to battery terminal to ground fuse to battery terminal to ground 6 5LF 6 5LF 12 5LF 12 5LF from processor All manuals and user guides at all guides com ...

Page 18: ... 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 Output Distorted Music not Recorded with Intentional Distortion Verify Source output to amplifier is not distorted Amplifier input sensitivity is correctly adjusted Amplifier Shuts Down Red and Green LEDs are Lit Amplifier is in Thermal Pro...

Page 19: ...stem 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 the form of your sales slip when requesting service Excluded from this warranty is damage that results from abuse misuse accidents shipping or repairs or modifications by anyone other than an authorized Boston Acoustics s...

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