Speaker peak and valley adjustment, how to adjust speaker equalization to R B style

Put the woofer and crossover into the cabinet (because they all occupy the volume of the cabinet), the crossover, the tweeter does not need to be wired, directly connect the woofer to the amplifier through the speaker binding post, turn on and play a small song, adjust the volume to the volume you usually like, and pay attention to the potentiometer.

What time is the direction (there will be adjustments to the amplifier and speakers in the future, which is the so-called collocation, and I will write an article about this section when I have time.) With a multimeter.

Okay, now, string the 1k resistor (to isolate the internal resistance of the amplifier) into one of the binding posts, and connect the multimeter to the speaker terminal.

on, put Hugo.

The audio signal of the 400h-1k segment, see what the multimeter voltage is, fine-tune the volume potentiometer to make the indicated value an integer, (if the voltage value is too small, the resistance value can be reduced, which can be from 20 ohm-1k, but the error is larger, strictly speaking, you need to use a millivoltmeter).

Now, put in the audio signal from 25h-to-1K (above 1K we will have to wait until the crossover) audio signal, trace the dots on graph paper, and an impedance curve comes out.

Friends who have [my disk] this CD can put that 10h-99h audio signal, which is a sweep, one Hz every 5 seconds, and the plot is comparable to an instrument.

Let's set it on a computer!

I tried it a few days ago and found that this thing is very easy to use, hehe, I just haven't learned it and don't know how to play!

The guests sang and I tuned at the same time, and the last few were eliminated, and there was no more howling. As for which point to eliminate, I don't know. Ask for help!

The adjustment of the equalizer should be adjusted by the up and down faders, above 0 for the promotion, 0 below for the attenuation, if it is a knob, to the left for the attenuation, on the contrary, for the promotion, but there is no such adjustment, are all while listening to the sound, while adjusting, do not remember these numbers, there is no big meaning,

Friend, you can't adjust it yourself, you have to adjust it by the power department, otherwise you will say that you steal electricity, and don't use the electricity meter yourself.

If the package is unpacked and there is a manual, adjust it according to the manual. Don't say you bought it without a manual. Nonsense.

The DIY passive box can be used to momo the frequency divider (replace the capacitor resistance, accurately adjust the frequency divider and phase, and suppress the peak and valley points in the frequency response), strengthen the box (add reasonable stiffeners inside), adjust the damping to eliminate standing waves, etc. If the crossover is bought with a Huiwei kit, try not to rub the crossover, and the sound quality will not be improved much! The finished box is all free, although the stiffener can strengthen the box, but if it is not handled well, it will introduce noise!

Whether a speaker sounds good or not is mainly determined by the speaker unit,After the speaker is cooked, it is basically finalized! Active box Momo power supply, increase transformer power, increase filtering, increase transient small capacitors, important audio coupling capacitors to replace MKP or tantalum capacitors!

The crossover has no bass, the treble is not good, and the crossover can make the sound more hifi, clearer, purer, and better. When you say that the sound is getting worse, it's because you have a problem with your ears (if you buy a crossover, you don't have any problems, you might have a problem with the crossover you made yourself).

The bass is not good, it is the woofer of the speaker that is not good--- it is a miscellaneous speaker - the bass frequency parameters are not good.

The crossover is just a few crossover points - bass and midrange connection--- crossover point is 300 Hz--- the bass below 300 Hz is divided to the woofer (bass is 20 Hz-300 Hz), bass diving is the bass performance of the speaker, the lowest resonant frequency (fo) of the speaker bass is not low, the speaker bass is not good...

If you can't adjust the crossover yourself, then the crossover point will not be accurate, and there will be peak-to-valley distortion.

You can also do without a crossover, the bass is pass-through - this looks like the bass is strong, but in fact it is in a state of distortion--- the sound is not clear--- the bass overlaps with the mid and high tones--- and the frequency response curve is peak distorted.

Adjusting the crossover by yourself will destroy the crossover point, and you don't understand the principle of the crossover (the forum's half-irrigated amateur misunderstanding); Because the ear is not a scientific instrument and cannot accurately adjust the crossover point, peak-to-valley distortion will occur.

The bass crossover is too low, and the crossover point is a little higher.

Mercedes-Benz C200 as an example, a good car audio equalizer needs to be modulated in the setting function of the car's central control system, and the specific operation method is as follows:

1. First click on the setting option, as shown in the figure below:

2. Then click on the sound option as shown in the image below

3. Click on the sound effect option again, as shown in the figure below

4. Then click on the equalizer option, as shown in the figure below

6. Finally, click on the sound balance option to adjust the position of the sound, as shown in the figure below

Answer: Many car owners in order to improve the sound quality of the car audio, will take the method of adjusting the equalizer, although this method is more cost-effective and simple, but it is necessary to remind all car owners that there are pros and cons to adjusting the equalizer, and even the adjusted sound may not achieve the best effect.

The most common car audio is a ten-band equalizer, but some car owners report that their ten-band equalizer only has 3 volume adjustments. Since it can only be +3 or -3 at most, although the adjustable volume of each band is small, as long as 1 is on a certain frequency band, the sound can vary greatly.

1. Bass.

First band: +2;Second band: +1;Third band: -1; Fourth band: +1;Fifth band: +1;

Sixth band: +1;Seventh band: +1;Eighth band: +2;Ninth band: +2;10th band: +2.

2. Strong high and low tones, biased rock and roll.

First band: +2;Second band: +1;Third band: 0; Fourth band: 0; Fifth band: -2;

Sixth band: +1;Seventh band: +1;Eighth band: +2;Ninth band: +2;10th band: +2.

3. Clear layers and partial voices.

First band: +1;2nd band: 0; Third band: 0; Fourth band: +1;Fifth band: +1;

Sixth band: +1;Seventh band: +2;Eighth band: +2;Ninth band: +1;10th band: +1.

Many people may not know what each frequency band corresponds to, but the following table is very specific about the adjustment details of all frequency bands.

Finally, remind all car owners that the above adjustment settings are just personal sharing opinions, not the best setting effect, everyone will have a different feeling about the sound quality, so be sure to try to find the setting that best meets your taste.

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Car stereo point sound field setting, heavy bass!

How to adjust the equalizer.

1 How to adjust the equalizer:

Subwoofer: 20Hz-40Hz, strong and powerful sound when appropriate. Control the sound of thunder, bass, organ and bass. Excessive lifting can make the ** become cloudy.

Bass: 40Hz-150Hz, is the basic part of the sound, its energy accounts for 70% of the entire audio energy, is an important component of the best style. When appropriate, the bass is properly relaxed, the sound is full and soft, and when it is insufficient, the sound is thin, 150Hz, and when it is excessively raised, the sound will be muffled, the brightness will be reduced, and the nasal tone will be enhanced.

Middle bass: 150hz-500hz, is the structural part of the voice, the vocals are located in this position, when insufficient, the singing voice will be submerged, the voice is soft and weak, and when it is properly promoted, it will feel strong and powerful, and the strength and loudness of the voice will be improved. Excessive boost can make the bass stiff, and an excessive boost of 3-6dB at 300Hz can seriously affect the clarity of the sound if combined with reverberation.

Alto: 500hz-2kHz, contains the low harmonics and overtones of most instruments, and is the characteristic tone of snare drums and percussion instruments. When appropriate, the sound is clear and bright, and when it is insufficient, the voice is hazy. When it is over-lifted, it produces a sound similar to **.

Middle and high tones: 2kHz-5kHz, which is the characteristic sound of string music (the sound of the bow and strings of the strings, the sound of the fingers touching the strings of the plucked music). When it is insufficient, the penetration of the voice decreases, and when it is too strong, it will mask the recognition of the syllables of the language.

Treble: 7kHz-8kHz, which is the frequency that affects the layering of sound. Excessive elevation will make the piccolo and flute sound prominent, and the teeth of the language will be accentuated and the timbre will be hairy.

Extremely treble: When 8kHz-10kHz is appropriate, the metallic permeability of the triangle iron and vertical fork is high, and the rhythm of the sand clock is clearly discernible. Excessive boost will make the sound unnatural and easily burn out the high-frequency unit.

2. The balanced and pleasant sound should be: below 150Hz (bass) should be full, soft and elastic; 150hz-50hz (medium and low bass) should be strong and powerful, not turbid; 500Hz-5kHz (mid-high sound) should be bright and transparent without being stiff; Above 5kHz (treble) should be slender, smooth and not sharp and harsh.

When the whole frequency response is straight: the sound is naturally full and elastic, and the layers are clear and pleasant.

When the frequency response is multi-peak and valley-to-valley: the voice is rough and turbid, the treble is harsh and hairy, and the sound reinforcement without a sense of hierarchy is prone to feedback and whistling.

This is still to go to a professional car audio modification shop to let their technicians adjust, but to debug according to the personal favorite ** style, if the individual does not like this style of tune, even if the tuning is good, it can not achieve the effect you want.

In terms of answering the hearing experience of ordinary people, the treble adjustment of car audio generally does not move or is raised by 1-2 bars, and it will feel harsh and uncomfortable if it exceeds 2 bars; The midrange is the pillar sound in **, which can be appropriately raised or attenuated by 2-3 bars, attenuation of more than 3 bars is easy to lead to the thinning of the midrange, and raising more than 3 bars will lead to sound distortion; The bass is powerful and can be adjusted according to personal preference, and if you listen to it for a long time**, it is recommended to lower the bass by 2 bars to avoid listening fatigue.

Some people like to listen to vocals, some people like to listen to rock and roll, there is no standard good or bad.

It should be adjusted according to different genres.

The first few notes are slightly higher, the middle is slightly lower, and the back is slightly higher.

Hahahaha. I tell you as a professional **person. No need to tune. It's all in vain. I don't feel like you have a broken sound when you mention it a little bit on the Internet?

The crossover is a bass, midrange, and treble splitter--- bass frequency 20-300 Hz for the woofer, mid-range frequency 300-3000 Hz for the midrange speaker, and treble frequency 3000-20000 Hz for the tweeter.

The crossover uses a coil and a capacitor to form a low-pass filter and a high-pass filter to establish two crossover points: 300 Hz and 3000 Hz.

The crossover only allows the speaker to emit its own sound frequency, and cannot change the bass dive of the woofer, nor can it increase the frequency of the tweeter. A high-quality crossover can only make the frequency response curve of the speaker smoother, which can reduce peak-to-valley distortion and make the sound quality more hifi. If there is no crossover, the woofer has a midrange in it, a midrange speaker has a bass in it, and a treble, and a tweeter has a bass midrange frequency in the tweeter, and the distortion is very large, and the sound is not good.

If the speaker treble is not good, it may be that the tweeter has burned out (you need to disconnect the speaker cable multimeter to check whether the speaker voice coil has burned out), and it has nothing to do with the crossover.

If you make a divider as an amateur, you must make the divider according to the circuit diagram of the divider given by the expert, and strictly follow the parameters of the capacitance and coil. You can't use your ears to adjust the crossover--- because your ears are not scientific instruments and can't accurately judge whether the crossover point is correct or not. Ear receipt, I don't understand that the appreciance of the ear is very different, so I can't debug the accurate crossover point.

Maybe a thousand ears, will be debugged a thousand different crossovers, whether there is a qualified frequency response characteristics, I don't know at all, or it may be a very distorted crossover. Is such a situation desirable?

You're talking about passive crossovers, where the frequency coincides with the resonant frequency of the inductor and capacitor, the greater the inductive reactance, the lower the filtered low frequency, and vice versa, the capacitance is the opposite.

Improve sound quality. Generally speaking, there are two kinds: one is for home; One is a professional stage, bar and other occasions; Home is treble + midrange + bass; Professional stage: Bars and other occasions are with treble + bass, and there are also alto, which is generally rare.

There are generally two types of crossovers: the capacitor is a sub-treble; Capacitance + resistance is divided into midrange; The inductance is divided into bass, and the sound quality will be clear. ("Learn to Forget the Hero" Tao).