Features:
1. Made of high quality material, durable and practical
2. High-quality car audio high to low converter, high frequency to low frequency, excellent workmanship, a good helper for audio conversion
3. Delay the switch line output to reduce the impact on the power amplifier or subwoofer, thereby eliminating the current interference when the host is turned on or off, and the power amplifier speaker makes a popping sound.
4. Built-in delay switch line output and low-frequency RCA output, thus solving the problem that the original host does not have switch lines and RCA outputs when installing a power amplifier or subwoofer.
5. Wide range of applications, low voltage start, easy and simple installation
1. Made of high quality material, durable and practical
2. High-quality car audio high to low converter, high frequency to low frequency, excellent workmanship, a good helper for audio conversion
3. Delay the switch line output to reduce the impact on the power amplifier or subwoofer, thereby eliminating the current interference when the host is turned on or off, and the power amplifier speaker makes a popping sound.
4. Built-in delay switch line output and low-frequency RCA output, thus solving the problem that the original host does not have switch lines and RCA outputs when installing a power amplifier or subwoofer.
5. Wide range of applications, low voltage start, easy and simple installation
Product Usage:
1. Used for hosts without low-frequency (RCA) output (for example: cassette player/card player/CD/VCD/DVD, etc.) to convert the speaker high-frequency output into low-frequency (RCA) output to the car power amplifier or subwoofer. Common "high-to-low" converters are broadly divided into two types: passive and active. Passive high to low conversion does not require a battery connection. High signal and low signal come out recently. There are a few resistors in the middle. So to be precise, passive high to low conversion should be called an attenuator. Active high-to-low requires battery power, and converts high signals into low signals through an amplification circuit. It is an audio amplifier that plays a reducing role. Some active high-to-low with volume adjustment is actually the principle of a power amplifier.
2. It is not necessary to use a high-to-low converter in the audio system. Only when the original car host does not have an RCA output, then you can consider installing a high-to-low converter to solve this problem, but an ordinary high-to-low converter will Part of the audio signal is lost.
1. Used for hosts without low-frequency (RCA) output (for example: cassette player/card player/CD/VCD/DVD, etc.) to convert the speaker high-frequency output into low-frequency (RCA) output to the car power amplifier or subwoofer. Common "high-to-low" converters are broadly divided into two types: passive and active. Passive high to low conversion does not require a battery connection. High signal and low signal come out recently. There are a few resistors in the middle. So to be precise, passive high to low conversion should be called an attenuator. Active high-to-low requires battery power, and converts high signals into low signals through an amplification circuit. It is an audio amplifier that plays a reducing role. Some active high-to-low with volume adjustment is actually the principle of a power amplifier.
2. It is not necessary to use a high-to-low converter in the audio system. Only when the original car host does not have an RCA output, then you can consider installing a high-to-low converter to solve this problem, but an ordinary high-to-low converter will Part of the audio signal is lost.
parameter:
The wiring tabs face up, counting from left to right:
White connects to the positive pole of the left speaker
Black and white are connected to the negative pole of the left speaker
Gray connects to the positive terminal of the right speaker
Gray and black are connected to the negative pole of the right speaker
Pure black ground wire
Red is connected to the 12V power supply (can be connected in parallel with the 12V power line of the subwoofer)
The blue is connected to the control line ACC of the power amplifier
The wiring tabs face up, counting from left to right:
White connects to the positive pole of the left speaker
Black and white are connected to the negative pole of the left speaker
Gray connects to the positive terminal of the right speaker
Gray and black are connected to the negative pole of the right speaker
Pure black ground wire
Red is connected to the 12V power supply (can be connected in parallel with the 12V power line of the subwoofer)
The blue is connected to the control line ACC of the power amplifier
Kind tips:
Any electronic component has its designed working range. The audio conversion and delay parts of this component are independent circuits. If the high to low conversion is not connected to the power supply, you can only use the audio conversion function. If you want to use the delay When turning on the power, in addition to turning on the power, you also need to pay attention to the following two points:
1. The material of the diode in the component is a silicon tube, and the starting voltage of forward conduction is 0.7V. If the output voltage of your player is too low, it may not be able to realize the delayed startup function, and you need to increase the volume of the player.
2. For some original car hosts, the speaker output line still has voltage after shutting down (very few models have this phenomenon, it would be best if you can use a multimeter to measure it before buying), which will cause the delay function to fail. Use pulse detection and intelligent Models where both methods of audio detection may fail. If this happens, there are two solutions:
1. Add a 25V100μf electrolytic capacitor to each speaker input line (to isolate the DC voltage), and then use the intelligent audio detection method to easily realize the real-time switch of turning on the host when there is sound and shutting down when there is no sound. machine control function.
2. Connect the high-to-low power cord to the ACC line to realize on/off control.
Any electronic component has its designed working range. The audio conversion and delay parts of this component are independent circuits. If the high to low conversion is not connected to the power supply, you can only use the audio conversion function. If you want to use the delay When turning on the power, in addition to turning on the power, you also need to pay attention to the following two points:
1. The material of the diode in the component is a silicon tube, and the starting voltage of forward conduction is 0.7V. If the output voltage of your player is too low, it may not be able to realize the delayed startup function, and you need to increase the volume of the player.
2. For some original car hosts, the speaker output line still has voltage after shutting down (very few models have this phenomenon, it would be best if you can use a multimeter to measure it before buying), which will cause the delay function to fail. Use pulse detection and intelligent Models where both methods of audio detection may fail. If this happens, there are two solutions:
1. Add a 25V100μf electrolytic capacitor to each speaker input line (to isolate the DC voltage), and then use the intelligent audio detection method to easily realize the real-time switch of turning on the host when there is sound and shutting down when there is no sound. machine control function.
2. Connect the high-to-low power cord to the ACC line to realize on/off control.
packing list:
Audio converter*1
Cable*1
Audio converter*1
Cable*1
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