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Product description:
Features (switchable to output pure bass or full frequency):
1. The power amplifier adopts 2 high-power pairs of tubes A1941+C5198. The rated power is 80W. The peak power is 500W.
You can push 1pcs 4-8 ohm, 8-12 inch subwoofer with magnet diameter of about 120mm or 4-8 ohm speaker with 80-500W;
2. With standard lotus socket external sound input, it can be connected to computer, mobile phone or CD and other audio;
3. You can choose full-frequency or low-frequency output, and there is no human voice output in the low-frequency (LPF) state;
4. With short circuit protection and reverse connection protection, double insurance design;
5. Built-in squelch circuit can eliminate part of the noise, making the sound quality more beautiful and more pleasant;
Product specifications:
1. Installation opening: width 100 * height 55mm
2. Mounting hole distance: width 70 * height 70 mm side?side 130 mm
3. Overall dimensions: width 140 * height 80 * depth 118mm
Panel function description:
1. GND: power ground (negative), connect to the negative pole of the power supply;
2. +12V: Connect to the positive pole of the DC +12V power supply (AC is not available);
3. REM: control line (need to be connected to +12V to work together with the machine);
4. P0WER: Power indicator light (the light is always on after the power is correctly connected);
5. CROSSOVER: Full frequency/low frequency selection (BASS pure bass, FULL full frequency);
6.FREQ: Bass depth adjustment (only effective when CROSSOVER is pulled to the BASS state);
7. VOLUME: adjust the main volume, please turn down the volume before powering on to avoid damage;
8.MP3 IN: 3.5mm external sound input port, which can be connected to MP3 or computer sound;
9. LINE IN (R IN): The input port of the right channel of external sound, suitable for connecting the right channel of CD;
10. LINE IN (L IN): The input port of the left channel of external sound, suitable for connecting the left channel of CD;
11.HIGHIN: high level input (+ connect high level +,-connect high level -. Such as car horn wire);
12.HIGHSPK: +Connect the tweeter+, -Connect the tweeter- (can connect 2pcs 4-8 ohm 50W treble, if you connect a treble, the middle two will not be connected; the treble will not be output in the bass state).
Wiring instructions:
1. Speaker connection: the red and black wire welded on the power amplifier board can be connected to a woofer or full frequency
Speaker or finished speaker (the red wire is connected to the speaker +, the black wire is connected to the speaker -);
2. Power connection:
A. There is a CD player on the car: CD is connected to the negative electrode of the battery; 12V is connected to the positive electrode of the 12V battery; REM
Connect the control line of the CD player (so that the D player can directly control the on and off of the subwoofer amplifier);
B. There is no CD player on the car: CNHD connects to the negative pole of the car battery, +12V connects to the 12V battery on the car
Connect a power switch between +12V and REM to control the switch function of the power amplifier;
C. Simple connection with the battery directly: GMD connects to the negative electrode of the battery, +12V and REM connect to 12 together
The positive pole of the bottle (also can refer to b connection plus a switch to control the power on and off)
D. If you need to buy a power adapter with a DC voltage of 12V and a current of 5.2A or more for power supply at home.
Note:
This is a monaural power amplifier that uses a secondary power amplifier to superimpose amplification. The following issues must be paid attention to before the power-on test, otherwise the power amplifier will be damaged:
1. The speaker output wires should not be touched together;
2. The speaker output wire can't touch the radiator
3. Do not touch any metal objects in the exposed part of the circuit board;
4. It is necessary to use speakers and power supplies that meet the requirements in the function introduction and wiring instructions;
5. The impedance of the speaker interface cannot be lower than 4 ohms, and speakers below 8 ohms cannot be connected in parallel.
Note: Please turn off the main volume before the power-on test, and then slowly increase the volume during the test. If the sound is intermittent or hoarse and distorted during the increase process, it means that the speaker is not compatible with the amplifier or the power supply current is too small, please turn off the low sound Or use it with a matching speaker or power supply.
Package included:
1Pcs
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