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Table of contents for the manual
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Page 1
/ tt Audio Amplifier with Noise Reduction Ampri audio 4 x 40 + 2 x 80 + 1 x 20 Watts avec limitation de distorsiun THD et R6duction de bruit HUSH@ Ampfificador de audio 4 x 40 + 2 x 80 + 1 x 20 vatios con ci6n de distorsi6n THD y Reduccidn de Ruidos HUSH@ Made in the U.S.A. Bosch Group[...]
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TABLE OF CONTENTS (ENGLISH) PAGE Introduction, Owner’s record, and key features Velacity amplifier features (Distortion Limiting, HUSH noise gating and reduction, Voltage Controlled Amplifier’s) Installation and safety precautions Amplifier controls and operation Amplifier connections and interface Speaker configurations Recommended system conf[...]
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INTRODUCTION Congratulations on your purchase of the world’s finest brand of car audio amplifiers. We have invested tremendous effort in the design process of the new VELOC/TT”series amplifiers in order to achieve superior musical performance. Leading edge technologies such as Distortion Limiting and HUSHTM noise reduction and gating, previousl[...]
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UNDERSTANDING YOUR AMPLIFIER’S FEATURES WHAT IS AN AMPLIFIER?... An amplifier, by definition, is a device that receives a small audio signal on its input and reproduces it with larger voltages (or current) on its output. Ideally there should be no internal modifications of the signal other than voltage or current level. If there are any changes i[...]
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HUSHm NOISE REDUCTION AND DOWNWARD EXPANSION GATING High quality compact discs provide very wide range volume levels with low background hiss levels. Unfortunately, the car is a very noisy electrical environment so vehicle noises (pops and alternator whine) often creep into the audio signal somewhere in the installation. Although mid and high level[...]
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VCA’s (Voltage Controlled Amplifiers) & ELECTRICAL PIN-OUTS Used in Professional Audio for some years, but totally new to the car audio world, is a remote control gain devices called a “VCA”. This is a small integrated circuit that can control the feed- through gain of a circuit from a remote location. It operates much like an external ?[...]
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INSTALLATION AND SAFETY PRECAUTIONS !! WARNING !! 8 ALWAYS DISCONNECT THE (+I LEAD FROM THE BATTERY OF THE VEHICLE BEFORE DOING ANY INSTALLATION WORK! 8 DO NOT INSTALL THIS UNIT IN THE ENGINE COMPARTMENT! 8 DO NOT RUN WIRES UNDERNEATH OR OUTSIDE THE VEHICLE! !! SAFETY PRECAUTIONS !! ._ nalyze the mounting location carefully to avoid damaging gas ta[...]
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AMPLIFIER CONTROLS AND OPERATION 1. 2. 3. 4. 5. 6. 7. 8. 9. CROSSOVER FREQUENCY CONFIGURATIONS - In the full-range mode (5-50,000 Hz) the amp reproduces all frequencies heard by humans. (bass) comes out of the speakers. In the LP (low-pass) position, only low frequency In the HP (high-pass) position, only information above the crossover frequency s[...]
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AMPLIFIER CONNECTIONS AND INTERFACE . . 1. GROUND LINE - This is the high current ground connection to the chassis of the car. It should be fastened to a clean ground connection in the car, capable of handling high current loads. Do not run a wire up to the car battery ground for this line. It should remain less than 3 feet in length (Imeter). 2. 3[...]
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SPEAKER CONFIGURATIONS Many audio systems can be generated from the flexible input and output configurations of this amplifier. The three most common include the following: 716 MULTI-CHANNEL SYSTEM MODE- 615 CHANNEL HIGH SUBWOOFER POWER MODE; 413 CHANNEL HIGH SYSTEM POWER MbDE. Possible in-car configurations will be covered elsewhere in this manual[...]
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SYSTEM CONFIGURATIONS (#l OF 4 RECOMMENDATIONS) SATELLITE/SUBWOOFER USING INTERNAL_ INPUTS (7 channel high-pass/low-pass) One of the most difficult decisions in amplifier usage is an optimized power amplifier configuration. The Blaupunkt VEf_OC/rV”” V7000 amplifier has the versatility to offer multiple installations but the most easily understo[...]
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SYSTEM CONFIGURATIONS H#2 OF 4 RECOMMENDATIONS) SATELLlTElSUBWOOFER USING EXTERNAL INPUTS (7 channel high-pass/low-pass) For those people wanting greater flexibility in frequency or signal level tailoring, you can insert active crossover networks between the radio and amplifier. Although the internal crossovers in the V7000 amplifier offer tremendo[...]
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SYSTEM CONFIGURATIONS (#I3 OF 4 RECOMMENDATIONS) . HIGH POWER “COMPETITION” CONFIGURATION (2 amplifiers in 413 channel mode) Although the standard configuration power of this amplifier is adequate for nearly any listener (4x4OW satellite + 2x8OW subwoofer), some people may wish for increased sound pressure levels. By installing two V7000 amplif[...]
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L - 2 X 15W High L wel Speaker Outputs SYSTEM CONFIGURATIONS (#4 OF 4 RECOMMENDATIONS) “FRONT STAGE/REAR FILL” HIGH POWER CONFIGURATION (4/3 channel mode) For many listeners, they are looking for a simple “Front Sound Stage” with “Rear Sound Fill” and a dedicated subwoofer. Live music dictates that the main speakers providing a “Sound[...]
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FINAL INSTALLATION . Proper installation of your amplifier should also address several areas; adequate mounting and ventilation, proper signal input interface, correct use of internal crossover networks, “clean” power/ground wiring, proper fusing, and power/speaker wiring. ADEQUATE MOUNTING AND VENTILATION Inevitably this amplifier will be moun[...]
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Page 16
“CLEAN” POWER AND GROUND Unfortunately, the number of electronic devices in the car has grown such that care must be taken to properly install the power and ground connections of the amplifier in order to prevent overloading the charging system of the vehicle or interjecting noise. Currents are high enough that a dedicated power line should be [...]
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Page 17
POWER WIRING Most automobiles built in the last 10 years have adequate current capability for your Blaupunkt amplifier. Except for systems above 500-700 watts, the factory charging system and battery should comfortably power your audio system. Care should be taken in the choice of wire to ensure adequate current delivery to the amplifier. Wire diam[...]
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Page 18
TROUBLE-SHOOTING GUIDE GYMPTOM PROBABLE CAUSE & SOLUTIONS . No power (blue remote turn-on l Check connections to the amplifier’s + 12 volt, Ground, and remote lines light is off) Verify the appropriate voltages are at their terminals (1 l-1 5 VDC). . Check the main power connection at the battery. . Check fuse in power line. If fuse is blown,[...]
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LIMITED WARRANTY (UNITED STATES) Robert Bosch Corporation warrants new Blaupunkt audio products’and accessories it distributes in the United States through authorized Blaupunkt dealers, or which are imported as original vehicle equipment by the automobile manufacturer, to be free from defects in material and workmanship, in accordance with the fo[...]
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Page 20
ACCESSORIES / ACCESSOIRES / ACCESORIOS There are four accessories available for your Velocity amplifier which increase its flexibility and guarantees high performance for years to come. 1 2. 3. 4. RM-1, REMOTE CONTROL: This control offers the consumer the capability of remotely controlling the gain of a subwoofer amplifier, or multiple amplifiers, [...]
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WEL OC/TYTM V7000 TECHNICAL SPECIFICATIONS FEATURE/PARAMETER Channels Size (h x w x d) Weight Crimping style speaker terminals Maximum wire size Blue power-on LED Noise reducing differential input circuits Inputs isolated from ground Subsonic filter Separate front/rear gains Spade type automobile fuses Speaker short, short to + 12V & ground pro[...]
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BLAUPUNKT Bosch Group Robert Bosch Corporation Sales Group - Blaupunkt Division 2800 South 25th Avenue, Broadview, Illinois 60153 Division Blaupunkt de Robert Bosch Inc. 6811 Century Avenue Mississauga, Ontario Canada L5N 1Rl Robert Bosch, SA., DE, C. V. Dr. Lucia 270 Cols. Doctores, Mexico 06720 Copyright 1994 by the Robert Bosch Corporation No po[...]