Assessments - 4, GPA: 3.5
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You may use 4 to 8 ohms speakers. Before connecting, please check speaker connection diagrams. 2 ELECTRICAL & AUDIO CONNECTIONS A. STEREO INPUT CONNECTION I.High impedance input. 2.Low impedance (BTL or Common Ground) Input a.Four Speaker Output Mode a-1. Floating Ground Type CAR STEREO Figure 3 3 ELECTRICAL & AUDIO CONNECTIONS a-2. Common Ground Type Figure 3A b.Two Speaker Output Mode b-1. Floating Ground Type Tf "F 'nf T’ "if "if "iF "ii—A Figure 4 4 ELECTRICAL & AUDIO CONNECTIONS b-2. Common Ground Type if ^ Eiï3 ‘ïf 'iT3 cïï3 ‘if ‘ii— __.«i-'u/a __POWER . . y . _ Nr^ E< — 3CH/L • 4 CH/fl HIGH INPUT LEVEL LOW TNPUT^ Ch/l* 2 CH/fi — LEVEL HIGH INPUT lo POO Figure 4A NOTE: High and low impedance input can not be used at same time. B. SPEAKER CONNECTION Connect the speaker output terminals to the corresponding speakers. (Figure 5) The speakers must be high quality and capable of handling high power. Separated return paths and strong wires are required. (Fig. 5) NOTE: This amplifier has built-in short circuit protection. If you mistakingly connect any speaker wires to ground, or positive power (+) and (-) Wires short together, the protection circuit will operate automatically and cut-off output. In case of this, you must switch OFF the whole system immediately double check speaker wire connections and isolation before switching on the amplifier again. 5 ELECTRICAL & AUDIO CONNECTIONS C. POWER CONNECTION FIG. 5 c= c= D= nr3 ^ CTP gir1 efr> eir3 "tT cn==^s ■ «ppakehs - V"^ 000 MAIN POWER LEAD — (TO CAR BATTERY POSITIVE TERMINAL) GROUND LEAD - (CONNECT TO A WELL GROUNDED METALLIC PART OF YOUR CAR ) REMOTE SWITCH - (CONNECT POWER ANT(ACC) LEAD WIRE OF YOUR CAR STEREO) w X- 4 RIGHT SPEAKER Da 3 LEFT SPEAKER IF =3 =3 1 LEFT SPEAKER 2 RIGHT SPEAKER Figure 5 1. Connect the B+12V pole of power supply directly to the battery (+) position terminal. 2. Connect the GND pole of power supply directly to the (-) negative ground battery terminal or car chassis. 3. To make a good grounding and prevent motor boating noise problem connect another 12 gauge minimum wire from the (-) negative battery terminal to chassis of stereo unit. 4. Connect the 'Remote' pole to external switch for positive 12V ON/OFF. This may be connected to the receiver power antenna lead. 6 INSTALLATION This amplifier comes complete with mounting hardware, if the unit is used in the line level (high impedance) mode, it is recommended to use gold plated RCA connection cables with the length as short as possible and mount the unit as close as possible to the receiver. This will lower the chance of stray magnetic pick up that may cause noise in the system. 1. Choose a suitable location. 2. Check the clearance behind and above the mounting area. 3. Wire unit according to the proper wiring digram. 4. Using the hardware provided, attach the unit to mounting surface. 7 8 TESTING AND SPECIFICATONS 1. After all the connections have been made, turn on your stereo and listen for the amplifier to turn on. If there are any unusual noises from the speakers then turn the system off and recheck all the wiring. 2. After you have connected your radio or equalizer to the amplifier, you may adjust the gain control to match the output level of your radio. (A)Set the volume control on your radio to 2/3 position. (B)Adjust the gain control for an average listening level. (C)Turn the radio volume all the way down and listen for background noise. (D)Start your vehicle and listen for electrical noise. (E)Making fine adjustments to the sensitivity can reduce background noise and some engine noise. (F)CAUTION:Never turn the sensitivity up any farther than you need to get clear sound at 2/3 volume. (C)This adjustment only needs to be made once. SPECIFICATIONS 1. Output power @14.4 V.D.C. 1KHZ. ,100 WX4 Max 2. Frequency Response 3. Input Impedance...... 15-30K Hz (±3dB) 10K ohms (Low Level) 100 ohms (High Level) 4. Input Sensitivity High Level. .2.5v 250mv Low Level 5. Power Supply Voltage............ 6. Matching Speaker Impedance. 7. Maximum C...
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