PA Speakers Guide: Types, Manufacturing, and Installation
PA Speakers(Public address Systems)
PA Speakers(Public address Systems) are audio equipment that can provide clear and precise sound to a wide audience in public.
Different public activities, such as concerts, conferences, speeches, and commercial events, etc., require different volumes and quality of PA speaker systems.
In this article, we analyze PA speakers from different aspects, including their types, manufacturing processes, installation, wholesale and manufactrurers, so you can better understand this type of product.
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Contents
1. What Is A PA Speaker System?
2. PA Speaker System Main Components
3. Types of PA Speakers For Public Address System
Full-Range Speakers
Subwoofers
Line Array Speakers
Horn Speakers
4. PA Speaker Manufactuing
5. Pa System Installation
6. PA Speaker Manufacturers
7. Conclusion
8. FAQs
1. What Is A PA Speaker System?
A PA speaker system is a setup designed to amplify and distribute sound across a large area, ensuring that the audience can hear clearly, regardless of the venue's size.
It consists of several components working together harmoniously to produce high-quality audio output.s.
Purpose and Application
PA systems can be used in venues such as stadiums, concert halls, conference rooms, and outdoor events to address crowds effectively.
They serve multiple purposes, from making announcements to delivering music or speech with optimal clarity.
Global PA Speaker Market Size
According to Active PA Speaker Market ”The global PA speaker market was valued at USD 7.2 billion in 2022 and is expected to reach USD 10.2 billion by 2028, growing at a CAGR of 5.5% during the forecast period".
Note: There is no statistics on the sales of passive PA speakers here.
2. PA Speaker System Main Components
To comprehend how public address system speakers operate, we should learn about the primary components that constitute them first.
These components include Speakers, Amplifiers, Mixing Consoles（Mixer), Sound Sources, Sound Source Equipments, Cabling, Audio Cable.
Speakers
For a PA system, speakers are one of the most important components.
PA speakers come in many shapes and sizes, depending on the needs of different events.
There are three main types of Public Address Speaker speakers: main speakers, monitor speakers (monitor speakers) and subwoofer speakers.
Some event occasions may only require a main speaker, such as a small meeting or lecture.
Music performances require comprehensive musical effects, which require more speakers.
Main speaker is the main sound source and will use large-size speakers: 8"-15".
The main speaker is usually placed on a stand or above the subwoofer.
For example, the AS-PA01 is a 15" main speaker.
For monitor speakers and subwoofers, we will introduce the chapter "PA Speaker Types."
Amplifiers
The function of the amplifier is to amplify and process the weak current signal of the audio source device (player, smart product, computer, etc.), and transmit the signal to the speaker to produce sound.
Only passive public address speakers need amplifiers, active PA speakers do not need amplifiers.
The amplifier is one of the three core components of the audio system (speakers, amplifiers, and sound sources), especially in large PA systems.
Mixing Consoles（PA System Mixer)
It is also a PA Speaker System, especially for large-scale performance sound systems.
The mixer can combine different sounds or change the volume and timbre of different audio signals during playback to make the sound more in line with the scene atmosphere.
The mixer can output multiple channels, including left and right main channel outputs and individual channel outputs.
Sound Source Equipments
The sound source equipment in a public address (PA) system is a device that converts sound into electrical signals.
Its working principle is opposite to that of a power amplifier.
Common ones include microphones (vocal collection), instrument pickups, line level equipment, etc.
Audio Cable
Different scenarios, including scale, current environment, and equipment, require different wiring methods to make the public address system speaker work.
Commonly used cables include XLR, Speakon, and TRS.
Cabling is crucial to the PA speaker system, which determines whether the system can work properly.
Professional or performance PA systems need to be completed by professionals.
2. Types of PA Speakers For Public Address System
There are many different types of loudspeakers for public address (PA) systems, each speaker has different characteristics and is used in different scenarios.
Full-range Speaker
Full-range speakers can emit sounds of various frequencies, from bass to treble, with a frequency range of 20Hz-20kHz.
They can produce a clear, balanced sound and are widely used in speeches and conferences, home theaters, music playback, public broadcasting, etc.
Common full-range speakers：
Three-way speakers: bass, midrange and treble;
Four-way speakers: bass, mid-bass, mid-treble, treble.
Five-way speakers: subwoofer, bass, mid-bass, mid-treble, treble
Stage Monitor Speakers
Stage monitor speakers are special speakers designed specifically for audio production environments.
Unlike ordinary consumer speakers, monitor speakers are designed to provide accurate, transparent sound reproduction, allowing stage performers to make precise judgments about the quality of their recordings.
In general, the main speakers can also be used as monitor speakers.
Subwoofers
The subwoofer is a speaker specifically responsible for low-frequency sound playback, with a frequency response range generally between 20Hz and 200Hz.
It is used together with mid-range and tweeter speakers to form a multi-channel sound system.
It reproduces low-frequency sound effects, and increases the strength, texture, shock and three-dimensionality of the bass, making the sound fuller.
Such as the sound of gunshots in movies, the sound of planes taking off, explosions and the sounds of disasters such as tsunamis and earthquakes.
Line Array Speakers
A line array speaker is a speaker system consisting of multiple speaker units (Drivers) arranged vertically in a row.
It is characterized by good directivity and uniform coverage.
Multiple line array speakers can form a large sound system, which is often used in large-scale events, such as concerts, conferences, celebrations, etc.
Places where line arrays are used include large stadiums, auditoriums, opera houses, cinemas, etc.
Horn Speakers
A line array speaker is a speaker system consisting of multiple speaker units (Drivers) arranged vertically in a row.
It is characterized by good directivity and uniform coverage.
Multiple line array speakers can form a large sound system, which is often used in large-scale events, such as concerts, conferences, celebrations, etc.
Places where line arrays are used include large stadiums, auditoriums, opera houses, cinemas, etc.
4. PA Speaker Manufactuing
The manufacturing process of PA speakers (systems) is similar to that of ordinary speakers, such as portable speakers, retro speakers, trolley speakers, etc.
Due to different application scenarios, its sound solution design is different from ordinary speakers.
The PA speaker manufacturing process includes:
Product design, prototype production and testing, case production, PCB design and production, accessories assembly (including circuit boards, frequency dividers, power supplies, etc.), online testing (function and appearance), QA sampling testing (aging, antioxidant testing), packaging, and warehousing of finished products.
5. PA Speaker System Installation
Civilian PA Speakers
For civilian PA speakers, the cabinets are small, and manufacturers have reduced the entire PA system and integrated it into the speaker.
Users only need to complete simple steps such as connecting the power supply and audio cables, which is no different from ordinary speaker installation.
Large PA Speaker System
Large systems include multiple parts: Amplifiers, Mixing Consoles (mixers), Sound Sources, Sound Source Equipments, Cabling, Audio Cable, Signal Flow, Effects, and Operation.
The entire installation process is complex and time-consuming (usually several days or even longer), and requires professional installers to complete. business operations.
6. PA Speaker Manufacturers
There are many PA speaker manufacturers and suppliers around the world.
Although there is no relevant data or reports to support them, many manufacturers supply other speakers, as well as PA speakers, so the total number of these factories should exceed 1,000 globally.
Here are some famous manufactuers:
Yamaha
Audio-Tehcnica
Shure
AKG
Blue
Lewitt Audio
Sony
If you need low-priced PA speakers for wholesale, you can consider Chinese manufacturers and suppliers.
Their brand reputation is not as good as that of large international companies, but they can carry out OEM production according to your quality standards.
So you can save yourself a huge investment in R&D and equipment while getting PA speakers that meet your sales needs.
This is a win-win cooperation method.
Some leading manufacturers from China:
Guangzhou Merry Audio
Guangzhou IBR
Guangzhou Merry Audio PA Speaker
Shenzhen Kstar Audio Equipment Co., Ltd.
Guangzhou Proaudio Co., Ltd.
Guangzhou Proaudio Co., Ltd. PA Speaker
7. Conclusion
Optimizing PA speaker performance involves proper system calibration, speaker placement, and acoustical adjustments tailored to the specific venue and audience.
8. FAQs
1. The key considerations when choosing PA speakers for an outdoor event?
Outdoor events require speakers with high-power handling and weather-resistant features to withstand environmental conditions(anti-oxidant and waterproof) while delivering clear sound over long distances.
2. How to optimize the performance of the PA speaker system?
Optimizing PA speaker performance involves proper system calibration, speaker placement, and acoustical adjustments tailored to the specific venue and audience.
3. Is the speaker enclosure design important in PA speaker performance?
Speaker enclosure design significantly impacts the sound characteristics and efficiency of PA speakers, influencing factors such as bass response, dispersion pattern, and overall sonic clarity.
4. How to solve common problems with PA speaker systems: feedback or distortion?
Common issues like feedback or distortion can often be mitigated by adjusting signal levels, EQ settings, or speaker placement.
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