Problems needing attention when connecting power amplifier equipment.Anhui Bar Audio direct sales

　　1. Pay attention to the power supply: The audio equipment must have a dedicated power supply, which must be separated from the power supply of the light, and the light prefers a lower voltage, but the audio requires a standard voltage. With a dedicated power supply, a stable and reliable power outlet is also required. You can try to use a "power sequencer". Although the cost increases, it improves stability and ease of use. The power amplifier audio manufacturer reminds that it is very important to correctly and securely connect the power supply of all audio equipment. Another point to note: some imported equipment will have 110V and 220V selector switches in the power supply. In my country, it must be confirmed that the 220V position can be connected and powered on.

　　2. Pay attention to the grounding of the equipment: The power amplifier audio manufacturer reminds that it is very important to correctly connect the ground wire to all the audio equipment. A good grounding can reduce the interference of equipment signal transmission and improve the stability of the equipment. It should be noted that the grounding wire should be made in accordance with the grounding standard of the lightning protection wire, that is, the conductor buried in the underground part should be rust-proof, well connected, and buried deep, and must not be shared with the grounding wire configured with the three-phase power line. Not only will it not reduce the noise in the sound system, but it can also easily damage the equipment.

　　3. Pay attention to choose the appropriate connection signal line: For an audio equipment, if we can use XLR balanced line to connect, do not use TRS balanced line to connect; if we can use TRS balanced line to connect, do not use TS mono unbalanced line Line connection; when there is absolutely no way, TS mono unbalanced line can be used to connect equipment.

　　4. Pay attention to the inversion and short circuit of the signal: The short circuit of the signal line often causes silent failure, but it is very troublesome to check, unless the signal lines are removed and tested with a multimeter, so be careful when welding the lines.

　　5. Pay attention to the length of the signal line: The power amplifier audio manufacturer reminds that when connecting equipment, it is necessary to use a shorter signal line as much as possible to save costs and reduce line resistance and interference. Under normal circumstances, the Z-length of the signal line using the balanced transmission method can reach about 300 meters, while the unbalanced line cannot be used for long-distance transmission.

　　6. Pay attention to the level of the device: if there is a +4 and -10 or -20 level switch on the rear panel of the device, under normal circumstances, we should put it at the +4 position, which is the standard level.

　　7. Pay attention to the pass-through: many devices have a pass-through (Bypass) button, the device generally does not work when the pass-through is used, so we should pay attention to check this button, or if we let the compressor pass-through not work, then The equipment behind the compressor loses its protective function.

　　8. Be careful of misoperation: The power amplifier audio manufacturer reminds that because there are many devices and buttons, it is often prone to misoperation. For example, there is a "×10" button on some electronic frequency dividers, and everyone should be careful not to press it easily. For example, if our crossover point is adjusted at 200Hz, pressing this button 200×10 will become 2000Hz, so we must avoid misoperation. With good equipment, coupled with the correct and reasonable connection them together, then the effect of this sound system will be perfect!

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