Kako uglasiti nizkotonski zvočnik

Uglaševanje basov globokotonca je zelo pomembno v vsakem dobrem avdio sistemu. Potreben je čas in trud, da od svojih nadomestkov pridobite zvok, ki ga želite. Vendar pa so nagrade dobro nastavljenega nizkotonskega sistema zelo zadovoljive. Na podlagi tega razloga se bomo v tem članku naučili, kako uglasiti nizkotonec in ohišje nizkotonca za najboljšo izkušnjo nizkih tonov.

Obstajata dva načina za uglasitev prenosnega nizkotonskega zvočnika – mehansko in z uporabo matematične enačbe.

Kako uglasiti nizkotonski zvočnik

Pred uglasitvijo nizkotonskega zvočnika morate sestaviti naslednje:

• Kabli za zvočnike
• Ampermeter ali vrhunski multimeter
• Funkcionalni generator
• Izvijači, odstranjevalci žice, med drugim orodjem

1. korak:Ločitev podskupine

Ločitev vključuje prekinitev neposrednega stika med podmornico in tlemi, da se izognete rožljajočim zvokom, ki bi sicer motili postopek uglaševanja. Položite izolacijsko podlogo med subwoofer in tla ali postavite nekaj ločevalnih nog pod globokotonec.

Noge in blazinice za ločevanje so gobaste in imajo veliko zračnih prostorov, ki pomagajo absorbirati tresljaje in preprečujejo, da bi potovale po tleh. To pomaga izboljšati nizkofrekvenčni odziv vašega globokotonca. Poleg tega vam bo pomagal poenostaviti podnastavitev, da bo ustrezala vašim željam.

Korak 2: Določite Resonančna frekvenca

Priključite pozitivni kabel ampermetra v tokovno vtičnico in ga nastavite za merjenje toka. Upoštevajte varnostne ukrepe, da zagotovite varnost pred visoko napetostjo.

Povežite ampermeter zaporedno med nizkotoncem in ojačevalnikom ter povežite vhode ojačevalnika z generatorjem signala.

Med opazovanjem gibanja ampermetra spreminjajte frekvenco signala. Odčitati mora največji tok pri resonančni frekvenci škatle. To je zato, ker ko globokotonec doseže svojo resonančno frekvenco, impedanca občutno pade.

Korak 3: Prilagodi Resonančna frekvenca

Če resonančna frekvenca, ki ste jo določili, ni vaša prednost, boste morali prilagoditi zasnovo škatle. To je veliko lažje narediti z zmanjšanjem ali povečanjem dolžine vrat. To boste lahko naredili s pomočjo naslednje enačbe:

Fb =želena frekvenca uglaševanja ohišja v Hertzih

Lv =dolžina vrat v palcih

R =notranji polmer prezračevalne cevi

Vb =notranja prostornina ohišja v kubičnih palcih

LV =[(1,463 x 10^7 x R^2)/(Fb^2 x Vb)] – 1,463 x R

Kubične čevlje lahko pretvorite v palce tako, da pomnožite s 1728.

Ko spremenite dolžino vrat, ponovno preverite resonančno frekvenco, da potrdite, da je nizkotonec dobro nastavljen. Čeprav je to lahko storiti sam, se posvetujte s strokovnjakom v panogi, da dobite ustrezne napotke o najboljšem in najvarnejšem načinu za to.

Najboljša uglasitvena frekvenca za nizkotonski zvočnik

Uglaševanje prenosnega nizkotonskega zvočnika je odvisno od kombinacije dejavnikov. Ti vključujejo neto prostornino škatle, površino vrat in dolžino vrat. Uglaševanje spremeni najvišjo frekvenco in lahko spremeni tudi zvok škatle.

Za najboljšo uglasitev SPL boste morali svoj podsistem nastaviti precej visoko. Nastavitev visokega SPL je običajno 45 Hz ali več. Čeprav kakovost zvoka ne bo tako dobra, bo glasnejši od tistega, ki ga dobite pri nižji nastavitvi.

Dobro mešanico med SPL in SQ (kakovost zvoka) je bolje doseči pri frekvencah, nižjih od 40. Pri 35 Hz škatla zagotavlja precejšnjo količino SPL in dobro kakovost zvoka.

Kako uglasiti zaprt nizkotonski zvočnik na 30 Hz

Nastavite meritev multimetra na tok in ga zaporedno pritrdite na sredino globokotonca in ojačevalnika. Uporabite frekvenčni generator za pogon nizkotonskega zvočnika in omogočite nizko impedanco v ohišju nizkotonskega zvočnika.

Merilnik kaže višje, ko je nizkotonec na svoji resonančni frekvenci. Če je izmerjena resonančna frekvenca višja, nastavite polje na želeno frekvenco. To se boste lahko naučili s poskusi in napakami.

Kako nastaviti nizkotonski zvočnik na 32 Hz

Pridobite multimeter, ki lahko meri tok, in ga nato zaporedno povežite z nizkotoncem in ojačevalnikom. Pridobite frekvenčni generator in ga uporabite za pogon sub, dokler multimeter ne odčita najvišjega toka (resonančne frekvence).

Uporabite resonančno frekvenco kot merilo za merjenje želene frekvence 32 Hz. Po nizu poskusov in napak vam bo to uspelo.

Kako nastaviti nizkotonski zvočnik na 35 Hz

Za nastavitev nizkotonskega zvočnika na 35 Hz preprosto sledite zgoraj navedenemu postopku. Ta postopek se ponavlja, dokler ne dobite želene frekvence.

Zasnova škatle z najglasnejšim globokotoncem

Če želite izkusiti najboljše nizke tone, boste morali izbrati velik nizkotonec in ga namestiti v zaprto škatlo.

Na splošno je JBL CS1204B najboljša zaprta pod-ohišje. Z odličnim izhodom nizkih tonov je idealen za avtomobilske in domače stereo sisteme.

Kako ugotoviti, na kaj je nastavljen nizkotonski zvočnik

You can only be able to find out the tuning point of a subwoofer box by playing a series of test tones around where you suspect it is tuned.

You should be able to find the point where the sub moves the least. That frequency is the tuning frequency of the box.

How To Calculate Hz For A Sub Box

The tuning frequency of a subwoofer box is a combination of the volume of the box, air compliance and speaker resonance frequency. Use the formula below to calculate the tuning frequency of your box.

F =(A / V) x F

Where,

F =Hz for the box

A =air compliance

V =box volume

F =speaker resonance frequency

Types Of Subwoofer Boxes

There are different types of sub boxes with specific designs. To so:

· Sealed Subwoofer

These boxes are built tightly and are best used to deliver precise and defined bass. They demand more power to run.

· Ported Subwoofer

This type of box utilizes a port to augment law bass response. They are suitable for music such as metal, rock, or any hard-driving music. they are more efficient in delivering deeper bass than sealed ones.

· Free-Air Subwoofer Box

This type of box does not use a particular enclosure. Here, subwoofers are installed on a board that is usually placed in the backseat of a car. The sound quality is however compromised.

How to Tune a Ported Subwoofer Box

Ported subwoofers are known for their ability to produce a quality low bass response. But, since everyone has a desired sound production preference, there might be a need to tune your ported subwoofer to your desired musical range.

How To Tune A Subwoofer Box To 32hz

To tune a subwoofer box to a frequency of 32Hz requires the use of a multimeter. The multimeter measurements should be changed to current and then connected to the subwoofer and amplifier in series.

To get the desired frequency of 32Hz, the frequency generator is used to drive the sub. The subwoofer impedance is then allowed to get low to the desired point.

How To Tune A Subwoofer Box To 35hz

To tune your subwoofer box to 35Hz, simply follow the process listed above. This process is repeated and tuned to achieve a frequency of 35hz.

Best Tuning Frequency For Subwoofer Box

A point to note when tuning subwoofers is that the lower the frequency, the better the bass quality you get from it.

That being said, the best frequency range for turning a subwoofer is around 20 Hz to 120 Hz . However, the way a subwoofer performs at a particular frequency depends entirely on the size and buildup of the subwoofer box.

How To Properly Port A Subwoofer Box

The result of porting a sealed subwoofer may be random because it will depend on the size of the subwoofer and the size of the hole.

However, here is a simple way to port a sealed subwoofer. Cut out a hole of roughly 20% of the surface of the box to make a hole that telescopes into each other. While your sub is playing, try covering it on different sides until you get the desired sound. Screw the cover down on the surface.

How To Tune A Sealed Subwoofer Box

To tune a sealed subwoofer box, the general practice is to supply the speaker with power from a stronger amp or simply change the speaker in the box.

However, unlike a ported speaker box that has a hole to let out the air pressure, a sealed subwoofer box does not. Therefore, caution should be taken when tampering with the sealed speaker to prevent air pressure buildup.

Why Tune A Subwoofer Box?

When it comes to tuning a subwoofer system, everyone has their preferences. Tuning your subwoofer box helps you achieve the maximum potential of your sound system.

While professional-grade equipment has a much smaller frequency range (20-80 Hz), a typical car sub can recreate sound frequencies between 20 Hz to 200 Hz.

However, it is recommended that you set up a low pass filter on your amplifier to cut frequencies above 100 Hertz and send them to the mid-range driver through a crossover network.

Also, some of the subwoofers available in the market will recreate bass much lower than 20 Hz. Because this is much lower than the audible range, such subwoofers may not give you a good listening experience.

The ideal frequency to tune your subwoofer box is 35Hz, as frequencies below this value do not experience lower frequency extension. Besides, lower frequencies require more power to reproduce. In addition, the frequencies around 35 HZ easily pass through walls making a significant impact in the surrounding rooms.

Before you tune that subwoofer, however, you need to consider some factors to give quality and sweet sound. We have discussed some of these factors below.

· Location

Before tuning to your desired frequency level, experts’ advice is that you mind the location of your subwoofer box. This will be the determinant of your audio quality.

· Crossover Frequency

The crossover frequency is the frequency from which a subwoofer starts to play bass notes, and thus your crossover frequency should be put where your speakers begin to roll. You can check this on your subwoofer for specifications. It is made available in modern subwoofers.

· Size Of The Room Or Car

To achieve an acoustic and quality sound, give much consideration to the size of the area where you want to install your subwoofer, especially if it is a sealed subwoofer.

· The Position Where You Listen From

Do you realize that there are some parts of your room or car that even the low frequencies could sound nearly loud while you can hardly hear them in some parts? Therefore, always be keen when placing your subwoofer box before tuning.

How Do I Make My Sub Box Louder?

There are various ways to increase the volume and sound output of your sub box. An easy option involves stuffing your sealed sub enclosures with poly-fill, this serves as a way to tighten the vocals. Asides that, you can toggle the tuning and tweaking of your sub box till you find a variation you like.

Does Subwoofer Box Shape Matter?

Yes, the shape of your subwoofer box is a huge part of how it produces sounds. Audiophiles and sound experts agree that all sub boxes should feature at least one angle in its design.

Can A Box Be Tuned Too Low?

When a sub box is tuned to frequencies that are lower than what they require, the results are not pleasant. Loss of output as well as echoes and delays.
If you tune the box lower than what it needs to be then you will lose output and the group delay will be massive.

What Is The Tuning Frequency Of A Ported Box?

The typical ported box operates on its own tuning frequency of 34Hz, this ensures that the sub’s output is in the low pass frequency margin.

How Do I Make My Subs Hit the Hardest?

• Use the appropriate amplifier for your subwoofer.
• Install the subwoofer in a band-pass box.

What Should I Tune My Sub Box To?

The typical ported sub box operates on its own tuning frequency of 34Hz, this ensures that the sub’s output is in the low pass frequency margin. 60 – 100 Hz is an ideal frequency

Conclusion

By following the guide in this article, you can get the best quality from your ported or sealed subwoofer box.