Why you should require audio amplifier enclosures?

Why you should require audio amplifier enclosures?

July 12, 2022by yongubox0

Why you should require audio amplifier enclosures?

The power of speakers to turn electrical audio impulses into sound waves for your enjoyment is impressive.  Amplifiers are needed for speakers of various sizes, from cellphones to stereo systems.


Why are amplifiers necessary for speaker systems?

Line level, which is generally 1 volt DC, is used for recording, storing, and playing back analog audio signals in their typical form. In order for a speaker to be driven and for sound to be produced in an appropriate manner, line level signals need to be amplified using amplifiers. In order to drive speakers in the correct manner, amplifiers reduce the impedance and boost the signal strength.

Importance of Speakers & Amplifiers

In just about all cases, both speakers and amplifiers are essential.

As transducers, speakers are essential.  They turn electrical audio impulses into waves that we can hear.  This affects even the smallest headphones and the most incredible sound systems.

The most accurate reproduction of sound is the goal of most high-end speakers.  Alternatively, they might be used to enhance the sound quality.

To drive the speakers with appropriate audio signal levels, amplifiers are required. This is likewise the case with the most powerful stereo systems and microscopic earbuds.  Amplification, commonly from 10–100x, is required to drive speakers adequately while recording line-level audio.  Amplifiers generally alter the impedance of audio signals like this to make them more compatible with speakers.

Preamplified signals such as those from a microphone, an instrument, or a gramophone must be used since they are often much weaker than line-level signals.

In other words, we couldn’t hear anything if it weren’t for the speakers.  Amplifiers are necessary since speakers can’t be driven hard enough to generate good sound without them.


What Is An Audio Enclosure?

A speaker cabinet and amplifier enclosure have the appearance of a package and all of the required components.  These components include a pre-amplifier, voltage amplifier, tone and volume control, power amplifier, and the speaker as the unit’s ultimate output.  Even while it is one of the functions of the enclosure, this construction that looks like a package is rather valuable in many other ways.  Along with the amplifier, it is necessary to achieve the best possible performance from the speakers.

All amplifying components in usual are contained in a compact hollow box that interacts with a back speaker driver.  Enclosures deal with the speaker driver’s backward sound waves.

This product may be found in a broad range of forms and sizes.  Simple sealed fiberboard boxes for small drivers in home stereos to extremely complicated systems with integrated chambers, trumpets, bass reflex ports and acoustical isolation that contain numerous substantial drivers for live performance sound amplification are examples of this type of device.

audio amplifier enclosures


Why Do Practically Speakers and Audio Amplifiers Have Enclosures?

Nearly all speakers come equipped with both an enclosure and an amplifier.

Phase suppression and the enclosure’s capacity to alleviate the loss of sound wave cancellation are the two critical factors in the solution to this question.

Coinciding movement in the driver’s cone/diaphragm is caused by applying an AC electrical signal across the driver’s conducting element.  It compresses the air in front of the cone/diaphragm and dries the air behind it as it moves ahead.  As the diaphragm retracts, the reverse is true.

Electrical energy (audio signals) is converted to mechanical wave energy by the speaker, serving as a system’s transducer (sound waves).

On the other hand, as the speaker moves forward and alters the sound pressure, it simultaneously generates an equal but opposing sound pressure to its rear.  This occurs because the speaker is moving in the forward direction.  Because of the back “anti sound wave,” the sound wave that would be created is essentially cancelled out.

The ubiquitous nature of lower frequencies makes this especially true.  Due to the driver’s configuration and the sound’s acoustic performance, phase cancellation isn’t possible in its entirety.  However, the speaker driver’s phase cancellation alone would lead the driver to produce a weak, muddy sound.

An enclosure may significantly enhance the sound transmission of a speaker unit by virtually shutting off the rear of the speaker diaphragm, at least to some degree.


Types of Audio Amplifier and Speaker Enclosures

Home entertainment systems cannot function without a proper speaker or amplifier cabinet.  Sound interference should be minimal in an amplifier or speaker enclosure, which can withstand high-frequency vibrations without a problem.

audio amplifier enclosures


With the amount of vibration caused by speaker drivers, a fragile speaker enclosure would inevitably either generate a lot of noise or even break apart all whole.

Sealed Enclosures

An airtight container is referred to as a sealed enclosure.  The air pressure in your speaker continually fluctuates as your driver goes back and forth.  Extra effort is required to withstand the additional pressure the diaphragm exerts as it travels inward and outward.  If you’re looking for a more precise and crisp sound, you’ll benefit from the increased pressure on the cone.

Ported Enclosures

A hole in the front of the enclosure helps balance the speaker’s internal and external pressures, allowing optimal sound quality.  The speaker’s internal pressure rises when the diaphragm is pushed back into the speaker.  This increased pressure is then expelled out the speaker’s front port.  Increases the speaker’s effectiveness by enhancing the sound waves it sends out.

There are certain drawbacks to using an enclosure with a ported port, including that reproduction results may be less exact.  Ported enclosures do not benefit from additional pressure exerted on resonating diaphragms; hence, this is why.  This may lead to a stronger boominess rather than an accurate reproduction of low notes from the speaker’s sound.

Since the bass output of a speaker is increased by roughly 3 dB in a port-enclosed enclosure, the amount of power required for the speaker is considerably reduced.  The power provided to the speaker must be doubled to match a 3 dB output gain through amplification.

Furthermore, if your amplifier or speaker cabinet has an open back, you’ll be able to see it immediately.  You just have to see it for yourself!  Over the years, the way open or closed-back speakers create tone has become an essential aspect of the trademark sounds of several notable amplifiers, cabinets, and combinations.

Open Back

In most cases, the speaker enclosures of combo amplifiers feature an open rear.  The sound coming from your amplifier may now exit more quickly now that the rear of the speaker cabinet has been removed.  Consequently, the sound will be more expansive, full of ambience and resonance.  Even more, gamers believe that this is a more accurate picture of your tone because of this.

Because of this, the advantage is that users won’t need to push the amplifier at a loud volume to appreciate the tone that it produces.  Because the music may travel in several directions, you and the band can hear the amplifier more clearly.  Moreover, if you perform on a stage, the audience will better hear you.

The sound engineer will have considerably more difficulty controlling the ambient sound.  This is one of the drawbacks.  As a result, you run the risk of experiencing spillage in the drum microphones or other stage mics, which is something that is not ideal.  That doesn’t mean that everything about it is terrible; it’s simply that it could be a little harder to control.

Closed Back

Traditional 4-inch by 12-inch quadruple enclosures and other combinations feature closed-back speakers nearly exclusively.  The audio can only be heard from the front of the speaker unit because it is self-contained.  With this method, you may achieve an even more full-bodied sound and a more powerful, bassy, and tighter sound, all in one go.  Controlling live and recorded sound is also made simpler for audio professionals by the ability to collect and alter sounds from a single primary source.

As a result, the natural ambience of an open-back amplifier isn’t used by this type of music, which is directional.  A closed-back cabinet emits a sort of laser beam of sound that travels in a straight line.  Taking a step to the right or left might alter everything!  You can use reverb or delay to compensate for the lack of atmosphere.  While this loud and defined sound might be precisely what you are looking for if you play a closed-back amplifier.



Today, speakers and amplifiers are almost everywhere.  The audio amplifier’s metal housing is an essential component that should not be separated from the amplifier itself since it serves a vital role in the operation of the device.  In addition to resolving technical issues, the amplifier’s housing should have an appealing aesthetic and blend seamlessly with any arrangement of furnishings or technological components.
YONGUBOX’s audio amplifier enclosures enable manufacturers and designers to get the most out of the goods and projects they are working on by maximizing their potential.
YONGU W28 120*40*L Audio Amplifier  Enclosures

YONGUBOX 001 CNC Aluminum Box 108*78*23mm

It has 30 Models of Audio Amplifier, including the following specifications.

Structure & Key Features

  • It offers custom knobs, a heat sink, and feet for your amplifier.
  • Beautiful audio amplifier design,
  • Rugged and robust for heavy-duty use.
  • Durable, to be used for an extended period o team.
  • Customizable Shape Options along with complete designing option.
  • Customizable shape
  • Good quality aluminium material, al6063 and al5052.


For further information and customized product of your requirements, follow our Facebook for more details: YONGUBOX.

You can also contact us at +86 13326782625 or write us at salesglobal@yonggu-enclosure.com.

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