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Anonymous users2024-02-08The preamplifier has three parts: audio input, audio output, and power input 1. Connect the signal to be amplified to the audio input 2. Connect the amplified signal output to the input of the power amplifier 3. Enter the power supply required by the pre-amp Generally, the circuit board will be marked: audio input -rin and lin; Audio output -rou
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Anonymous users2024-02-07Is it still right to get married and work a few days ago? You look at the introduction on the Internet or something, and learn about the question of whether this is right or not from the Internet.
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Anonymous users2024-02-06left is the meaning of the left channel,Preamp left,I don't know if yours is the input or output,The chi of the power amplifier generally refers to the input,But you didn't say it was left or right,No way,Anyway, it's the output of the preamp connected to the input of the rear amp,Left to left,Right to right on it。
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Anonymous users2024-02-05This sound doesn't need to be too loud, just bear yo, why put it so big? Yo's Ping Jing is good! Why influence others! As long as oneself can hear shu, sh!That's it, it's good for you, for her, and for everyone else!
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Anonymous users2024-02-04The output of the preamplifier can be connected directly to the input of the amplifier. In order to fully enjoy the sound brought by the power amplifier, in actual use, the signal output of the preamplifier should be reduced as much as possible, and the volume of the power amplifier should be adjusted as needed. This will be maximized.
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Anonymous users2024-02-03Is the preamp discrete or op-amp? If it is an op amp, you can string a 10 micro-method 50-volt capacitor and connect a headphone to hear the sound, if it is a discrete component, you can string a micro-method 250-volt capacitor and connect a small speaker of a radio to hear the sound, but no matter which method is used, you must remember that the general preamp is commonly used to work with positive and negative power supplies, and you need to carefully understand the circuit to start, otherwise your preamp will be easy to keep. I hope to take my advice.
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Anonymous users2024-02-02Disconnect the rear stage, don't move the original power supply, power on test, the signal from the general front stage is very weak, there is an oscilloscope to see the best, there is really no line at the output end of the line to lead out with the headset of the mobile phone to try, it is best to add a DC capacitor when connected, so that the headset is safe.
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Anonymous users2024-02-01The pre-amplification is a small signal, and after adding the power supply, the audio signal should be connected at the input end, and the output amplitude should be observed by the oscilloscope at the output end, so that it can be seen whether it is amplified.
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Anonymous users2024-01-31Hello dear, if you want to connect the pre- and post-amp amplifiers, you can follow the steps below:1Connect the output signal of the preamplifier to the input vibrator bridge of the amplifier through the RCA line.
2.Adjust the volume and equalizer settings of the preamp as needed. 3.
Connect the output signal of the amplifier to the speakers via the speaker wires. 4.Adjust the volume and equalizer settings of the amplifier to ensure the sound quality is clear and appropriate.
It should be noted that when connecting the pre- and post-amp amplifiers, it is necessary to ensure that the input and output ports are properly connected and to avoid distortion or rupture of too many loud frequency signals. In addition, you can also adjust the connection between the pre- and post-amp amplifiers according to actual needs to achieve better sound quality.
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Anonymous users2024-01-30This is a relay.
The relay is connected between the output of the power amplifier and the input of the horn, and its functions are:
1. It plays the role of delay when starting. After the power of the power amplifier is turned on, the relay is delayed for a few seconds under the control of the circuit, and then the horn is turned on, which can eliminate the current impact sound when the machine is turned on.
2. Protect the horn to prevent the horn from being burned due to the failure of the power amplifier. When the circuit fails, especially when the power amplifier output is overloaded, the control line can cut off the relay in time and disconnect the output to protect the horn.
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Anonymous users2024-01-29The one below.
It is the amplifier that can be connected to the speaker.
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Anonymous users2024-01-28Do you still need sound and sound sources? Otherwise, how can it ring.
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