If the power amplifier tuner is tuned one high and one low, will it burn the wrong power tube?

There is no such thing as "just". There are only "easy" cases. This situation will only occur when the power of the amplifier is not small, but the power of the speaker is greater than that, such as 50W power amplifier and 100W power amplifier are paired with 300W and 500W speakers.

Under what circumstances will it not burn? If you take a car radio and connect it to a speaker with a few hundred watts, it won't burn at all, but it won't sound very good.

Why does it burn? In fact, it was all burned by people. The woofer of the high-power speaker because of its own movement inertia, often needs a relatively large current to push the bass to appear clean and powerful, and the power amplifier power is equal to 1 3 times that of the speaker, it can work very well, and the bass performance is very good if the volume is not large.

If the power amplifier power is lower than the speaker power times below, there will be insufficient thrust, the bass is weak and unable to come out, so the operator always has the illusion that the volume is not enough, so he desperately adjusts the volume, the output power of the high-power amplifier is greater than the nominal power of 1 5 There is a more obvious distortion, and the output power exceeds 1 2 When the signal is large, it will be seriously distorted, this distortion will lead to a sharp increase in the output current of the power amplifier, high heat, and burn the power amplifier tube for a long time.

It should be noted that the above situation is actually only easy to occur in PA applications, especially outdoor PA occasions. In fact, because of the close distance at home, even if the bass performance is not good, you will still feel that the sound is very loud and noisy, and it is impossible for anyone to increase the volume significantly. Therefore, this statement is just a mistake in taking the human factor as an equipment factor, and a wrong mistake in taking individual factors as a comprehensive factor, which is just a false rumor.

The power amplifier tuner will not burn out the power tube if it is tuned high and low, and the tuner itself is to adjust the sound effect, as long as it does not exceed its design power, it will not be damaged.

With the advancement of technology, some electronic tuners have metronome functions at the same time, and have added audio interfaces, which can provide internal signal transmission for electroacoustic instruments, making it more convenient to calibrate electroacoustic instruments, even in very noisy external environments. This tuner is also known as the "three-in-one electronic tuner".

Distinguish. The tuner is an instrument for correcting the pitch of musical instruments, the tuner of the guitar has two kinds of single strings and six strings, the single string only has the C standard pitch of the treble MI, which corresponds to the first string of the guitar, and the tuner of the 6 strings has bass MI, bass LA, alto RE, alto SOL, alto SI and treble MI six C tune standard pitches, which correspond to the six strings of the guitar respectively.

A total of 4 photos. Merge Atlas.

The pickup is a kind of equipment that needs to be amplified due to the small sound of the acoustic guitar during the performance, the pickup is clamped on the resonance box of the guitar, which can well transmit the sound after resonance, and the problem is that the scratch or hot sound caused by the mistake when playing will also be amplified.

Automatic electronic tuner.

Modern instruments equipped with semiconductors, integrated circuits, etc., can produce the required pitch, and can also display the pitch of the instrument's pronunciation. This instrument is gradually being widely used. Domestic brands are:

Wind Child Musical Instrument (BMD), Hong Kong Ziko, Weike Electronics, Enno Musical Instruments (ENO), Anoma, Zhuole Electronics, Yuyin Electronics, Boyin Electronics, Junle Electronics, Jiahao Electronics, Langyun Electronics, Fu Rong, Mimios.

Foreign brands are: BMD, Korg, Seiko, Intelli, Ziko and so on.

Manual automatic electronic tuner.

Guitar, bass manual dedicated (patented function).

The guitar six strings correspond to the sound names: 1E, 2B, 3G, 4D, 5A, 6E).

1. The manual independent tuning of the 6 strings of the guitar displays the sequence number and tone name of the strings to avoid automatic misidentification, and the capo clip tuner.

When you adjust to manual mode, only the tone of the string is displayed high and low, and the string is not skipped, which is very suitable for beginners.

For example, when the E note (mi) of the first string is low and there is a whole tone, it will be recognized as the D (Re) tone of the 4th string, because the 1st string is E (mi) and the 4th string is D (Re), which makes beginners confused and does not know whether to tighten or loosen, so the situation of breaking the string often occurs. However, if you select the manual tuning function, after selecting 1 string, the tuner will only display the note name e(mi) of the 1st string and the detected note deviation, and the user only needs to use this display to guide the tuning, tight or loose).

2. Bass tuning expansion function, display the order of 1-4 strings and each note name in manual mode, then press the manual button to display L is the bass of the conventional 5-string bass tone, and then press to display the highest note of the conventional 6-string bass tone.

How is the amplifier generally tuned, and to what extent are those bass and trebles generally tuned?

Hello, if the amplifier has a tone, the premise is that there is a woofer of more than 8 inches in the speaker, and the amplifier has a certain output power, and the tone can play a role. If the speaker is only 6 or 7 inches, the effect is not ideal. But the tone can make the sound quality more pleasing to the ear and more distinct.

Each piece highlights a different melody and adjusts the high and low levels differently, completely modulating to your liking. For example, when listening to a solo flute piece, you need to exhale a higher note stronger, especially a happy song. But listening to a cello concerto requires a stronger bass, especially the cello accompaniment, and the jumping accompaniment is really the icing on the cake.

Therefore, when listening to the audio, the bass is a little stronger, and the high tone is a little weaker, so that you can feel the shock.

Hello, we are glad to serve you, the reason why the main volume of the power amplifier is getting lower and lower, the internal resistance of the power transformer or rectifier element increases, which makes the output voltage drop or fluctuate, so that the sound becomes smaller and distorted. When the power supply stall slag shouts that the filter capacitor fails, when the volume is turned on, the power amplifier circuit needs to hinge a large power current, and after the filter (energy storage) capacitor fails, the transient high current of the load cannot be provided, resulting in small sound and distortion. Thank you for your inquiry, and I wish you a happy trip.

Summary. Hello dear, glad to answer for you, <>

The amplifier does not have high and low bass adjustments, and the adjustment methods are as follows:1Pull out the lid of the tuning knob and look at the adjustment cover of the potentiometer.

2.Pull out all knob caps and nuts, then pull out all set nuts and screws separately. 3.

Open the cover to see the tuning circuit board and replace the broken potentiometer with an electric soldering iron. 4.Disassembly of the potentiometer Replace the side close-up of the B20K potentiometer Remove the back plate by priing open the three fixed feet on the back with a flathead screwdriver.

Thank you for your consultation, I hope this service can help you, you can click on my avatar to follow me, and if you have any questions in the future, you can consult me again. I wish you a happy life, a happy family, good health, and all the best <>

What should I do if <> amplifier does not have high and low bass adjustment.

What to do if you feel that the treble is too bad.

Hello dear, glad to answer for you, <>

The amplifier does not have high and low bass adjustments, and the adjustment methods are as follows:1Pull out the lid of the tuning knob and look at the adjustment cover of the potentiometer.

2.Pull out all knob caps and nuts, then pull out all set nuts and screws separately. 3.

Open the cover to see the tuning circuit board and replace the broken potentiometer with an electric soldering iron. 4.Disassembly of the potentiometer Replace the side close-up of the B20K potentiometer Remove the back plate by priing open the three fixed feet on the back with a flathead screwdriver.

Thank you for your consultation, I hope this service can help you, you can click on my avatar to follow me, and if you have any questions in the future, you can consult me again. I wish you a happy life, a happy family, good health, and all the best <>

Is it okay to add an equalizer <>.

The lack of treble is related to the crossover point setting of the speaker, the upper frequency limit of the tweeter, and the frequency response of the power amplifier, so adding an equalizer may not be effective, and the problem needs to be solved by prescribing the right medicine. ”

Do you mean that when the volume is loud, it will be weaker?

If this is the case, there are several cases as follows:

1. Whether the mixer has enabled the compression function and over-compressed;

2. Whether the power amplifier has overload protection function;

The mixer has no power, it's just a preamp.

There are also some speakers that come with their own power amplifiers, which are protected and automatically reduce output when the threshold is reached;

Judging from your description, it can be considered that the power of the overall speaker is insufficient, and it can't be high.

The sound power is too small, and it is automatically protected.

The tweeter is easy to burn the reason.

1. The tweeter itself has small power and cannot withstand large volumes.

2. The crossover point is set too low, resulting in too many mid-bass components entering the treble, resulting in treble overload and burning.

3. The power amplifier is self-excited, or the microphone is facing the speaker when singing, causing the return whistling and the treble overload and burning.

Precautionary measures. 1. Add the tweeter limiting protection circuit to reduce the coupling capacitance capacity of the tweeter simply.

2. Change the high-power treble, which is very limited.

3. Check whether the power amplifier has acoustic self-excitation, and remember that the microphone should not be facing the speaker to avoid acoustic noise.

Professionally use limiters and phase shifters to protect, which is complicated.

The power of the power amplifier is small, if it is turned on to the maximum, the output is a distortion signal, the power amplifier and the horn are easy to burn out, the best thing is that the power amplifier is turned on a little smaller when the sound is just distorted! This is to be listened to by ear, and it is best to twist the volume of the amplifier no more than three points