High-to-Low Converter RCA Speaker Cable Audio Converter High Frequency to Low Frequency TD-22 for Audio Speakers CD Player _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Features: 1. Made of high-quality materials, durable and practical 2.High quality car audio high to low converter, high-frequency to low-frequency, exquisitely crafted, easy to assist in audio conversion 3.Delay switch circuit output to reduce the impact on the power amplifier or subwoofer, thereby eliminating current interference when the host is turned on or off, and the power amplifier horn emits a popping sound 4.Built in delay switch circuit output and low-frequency RCA output to solve the problem of the original host without switch circuit and RCA output when installing power amplifiers or subwoofers 5.Wide application range, low voltage startup, convenient and simple installation Product Usage: Used for hosts without low frequency (RCA) output (such as cassette tape machines/card insertion machines/CD/VCD/DVD, etc.) to convert the high-frequency output of the speakers into low frequency (RCA) output to car power amplifiers or subwoofers. The common "high to low" converters are generally divided into two types: passive and active. There is no need to connect a battery to turn passive high to low. Recently, when the high signal is low, there are several resistors in the middle. So, to be precise, passive high to low should be called an attenuator. Active high to low conversion requires battery power supply. By amplifying the circuit, high signals are converted into low signals. It is a type of audio amplifier that plays a reducing role. Some active high to low conversion amplifiers with volume adjustment are actually the principle of power amplifiers. In the audio system, it is not necessarily necessary to use a high to low switch. Only when the original car host does not have RCA output, can we consider adding a high to low switch to solve this problem. However, ordinary high to low switches will lose a portion of the audio signal. Parameters: The convex tab of the wiring is facing upwards, counting from left to right: White connected to the positive pole of the left horn Black and white connected to the negative pole of the left horn Grey connected to right horn positive Grey black connected to the negative pole of the right horn Pure black grounding wire Red connected to 12V power supply (can be connected in parallel with the 12V power line of the subwoofer) Blue control line ACC connected to power amplifier Kind reminder: 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 switch is not connected to the power supply, you can only use the audio conversion function. If you want to use the delay startup function, in addition to connecting to the power supply, you also need to pay attention to the following two points: 1.The material of the diode in the component is silicon tube, and the startup voltage for forward conduction is 0.7V. If the output voltage of your player is too low, it may not be possible to achieve the delayed startup function, and you need to increase the volume of the player. 2.Some original car hosts may have voltage on the speaker output line after being turned off (this phenomenon is rare in rare models, and it would be best if you could measure it with a multimeter before purchasing), which can cause the delay function to fail. Models that use both pulse detection and intelligent audio detection methods may fail. If this situation occurs, there are two solutions: 1. Add a 25V100 on each speaker input line F's electrolytic capacitor (separates DC voltage), and then uses intelligent audio detection method, it can easily achieve real-time on-off control function of turning on the host when there is sound, and turning off the host when there is no sound 2. Connect the high to low power line to the ACC line to achieve on/off control Package include: Audio converter * 1 Flat cable * 1 _x000D_