Active Speakers: Structure, Features, Uses & Classification

Active speakers, also known as powered speakers, are modern audio devices with built-in amplifiers, providing convenience, powerful performance and superior sound quality. With the ability to "plug-and-play", Active speakers are increasingly becoming the preferred choice in home audio systems, events, halls, and professional stages.

According to Grand View Research (2023) report, global Active speaker sales reached 6,8 billion USD and are expected to grow at a CAGR of 7,5%/year until 2030. This proves the remarkable growth of the Active speaker market.

Active speakers are speakers with built-in amplifier circuits, making them easier to use. They consist of an amplifier circuit, speaker drivers (bass, mid, treble), speaker membranes and power sources.

The operating principle of Active speakers consists of 4 steps: receiving audio signals, processing and amplifying signals, converting electrical signals into mechanical oscillations in the speaker and finally the speaker membrane creates sound that propagates in the air.

Active speakers are convenient with built-in amplifier, easy to install, stable sound quality and high mobility. However, higher price, heavier weight, difficult to repair and limited upgrade are disadvantages to consider.

From home to professional stage, Active speakers are versatile, convenient and efficient sound solutions. Active speakers include 3 main types: active subwoofer (powerful bass), active array speakers (wide coverage, even sound) and active karaoke speakers (versatile, easy to connect). Each type has its own advantages, serving different usage needs from home karaoke to large events.

Currently, active speakers and passive speakers are two popular speaker lines used today. Active speakers are suitable for users who prioritize convenience, mobility and stable performance. Passive speakers are aimed at users who are technically savvy and want to customize and upgrade their sound system.

Refer to the article to better understand active speakers and know how to choose the right speaker for your needs.

What is Active Speaker?

Active speakers (powered speakers) are audio devices that have a built-in amplifier. This means you do not need an external amplifier like when using Passive speakers. Active speakers are often used in professional and home audio systems thanks to their ability to reproduce realistic and powerful sound.

Active speakers solve the complex connection problems of traditional speaker systems. With the ability to “plug-and-play”, Active speakers are increasingly becoming the preferred choice, especially in small spaces, conferences, and events.

Structure and operating principle of Active speakers

Active speakers integrate amplifier circuit, speaker (bass, mid, treble), speaker membrane and power source. They work by receiving audio signals, amplifying them, converting them into mechanical vibrations and then reproducing sound into the environment. Thanks to that, Active speakers can operate independently without the need for external amplifiers.

Structure of Active speaker:

• Amplifier circuit: This is the most important part of the Active speaker, responsible for enhancing the audio signal from the source before transmitting it to the speaker.
• Speaker driver: Converts electrical signals into mechanical vibrations, which produce sound. Speakers are usually divided into bass speakers, mid-range speakers, and treble speakers. The speaker adjusts the audio frequency to cover the audio spectrum from low to high.
• Diaphragm: Responsible for reproducing sound from the vibrations of the speaker cone. The thinner the speaker cone, the more detailed the sound.
• Integrated power supply: Provides power to operate the entire system. Active speakers usually require a stable power source (110V or 220V).

Active speaker operating principle

From receiving the input audio signal, processing and amplifying the signal, to converting the electrical signal into sound, Active speakers perform all these steps optimally.

1. Receive audio input signal: Audio signals are transmitted from the source (such as phone, computer, microphone, or music player) to the speaker via connection ports such as Bluetooth, RCA, USB, or 3.5mm jack.
2. Audio signal processing: The input audio signal is fed into the integrated amplifier circuit inside the speaker. This amplifier circuit is responsible for enhancing the signal to reach a power level large enough to suit the speaker.
3. Signal amplification: The built-in amplifier processes and amplifies the audio signal. Since the amplifier is optimized for the speaker, the signal is amplified precisely, minimizing distortion and ensuring high sound quality.
4. Convert electrical signals into sound: After being amplified, the electrical signal is transmitted to the speaker (driver). The speaker converts the electrical signal into mechanical oscillations, vibrating the speaker diaphragm to create sound waves.
5. Sound to the environment: The speaker membrane vibrates, creating sound waves that propagate through the air from which the listener can perceive the sound.

What are the advantages and disadvantages of Active speakers?

Active speakers have outstanding advantages such as built-in amplifier, easy installation and use, stable sound quality, and high mobility. However, this speaker line also has some disadvantages such as high price, heavy weight, difficult to repair when damaged and limited in upgrading. See the detailed advantages and disadvantages of Active speakers below to help users make the right choice for their needs.

Advantages of Active Speakers

Active speakers are highly appreciated for their built-in amplifier, stable sound performance, easy installation and use for even non-professionals, high mobility and space saving.

• Built-in amplifier: Active speakers have built-in amplifiers that process audio signals directly without the need for external devices. This reduces the complexity of installation and connection, while saving the cost of purchasing additional amplifiers.
• Stable and high quality sound performance: Active speakers are designed with optimized components, ensuring that the audio signal is amplified evenly and accurately. This helps the speaker reproduce sound faithfully, from the low frequency range (bass) to the high frequency range (treble). A Bose study shows that Active speakers have 30% lower distortion than Passive speakers when operating at high power.
• Easy to install and use: Active speakers are designed with a “plug-and-play” mechanism, just connect the power source and audio signal and you can use it immediately. This is especially useful for non-professional users or those who want to save installation time. For example, at small events, Active speakers like the Bose S1 Pro can be set up in 5 minutes without the need for a technician.
• High mobility: Many Active speaker lines today are compactly designed, have built-in rechargeable batteries, and have convenient handles. This makes it easy for users to carry the speaker to different locations, from meeting rooms, classrooms to outdoor parties.
• Space-saving: With its built-in amplifier design, Active speakers do not require additional external equipment, helping to minimize the number of cables and devices in the sound system. This is especially suitable for small spaces such as living rooms, meeting rooms or cafes.

Disadvantages of Active Speakers

Some disadvantages of active speakers are: high price, heavy weight, difficult to repair when damaged, need stable power source when operating and limited in upgrading. Users Considerations before choosing:

• High price: Active speakers are often more expensive than Passive speakers of the same capacity due to the integration of many technologies and components inside. According to Statista (2023) report, the average price of Active speakers is 25-30% higher than Passive speakers.
• Heavy weight: Due to the built-in amplifier and other components, Active speakers are often heavier than Passive speakers of the same size. This can make it difficult to move or install in large spaces.
• Difficult to repair when damaged: The built-in components inside Active speakers make repairs more complicated, especially if the amplifier circuit fails. For example, if the integrated amplifier in an Active speaker fails, the user often has to replace the entire circuit, the repair cost can be up to 30-50% of the speaker's value.
• Requires stable power source: Active speakers require a constant power source to operate, which can be inconvenient in environments without electricity or with unstable power sources. This makes Active speakers less suitable than Passive speakers for situations where long-term use without a power source is required.
• Limitations on upgrading: Due to the integrated design, users cannot upgrade components such as amplifiers or speakers individually. If you want to upgrade the capacity, you have to replace the entire Active speaker, while with Passive speakers, just replacing the amplifier is enough.

What is the use of Active Speaker?

Active speakers are a comprehensive audio solution that meets a variety of needs, from home, events, to professional spaces. With an integrated design, high performance, and flexibility, Active speakers not only bring great audio experiences but also help users save time, effort, and costs. If you are looking for a modern, easy-to-use, and versatile audio device, Active speakers are definitely a must-have.

Applications in home audio systems

Active speakers are the ideal choice for home audio systems thanks to their high quality sound reproduction and ease of use. Active speakers have built-in amplifiers, so users do not need to buy additional external amplifiers, thereby saving costs and space. With its compact design, the Active speaker is suitable for placement in the living room, bedroom or home entertainment room.

In addition, many Active speaker lines today also support wireless connection via Bluetooth or Wi-Fi, making it easy for users to play music from phones, tablets or other smart devices. This brings maximum convenience, especially in the digital age.

Real-world example: An Active speaker like the JBL PartyBox 310 can play music at high volume, integrate color-changing LED lights, creating a vibrant entertainment space for family parties.

Used in events, halls and professional stages

Active speakers are designed to meet the needs of large sound, suitable for events, halls, and live performance stages. Active speakers have high power (usually from 500W to 2000W), helping to produce strong and clear sound in large spaces.

With built-in sound amplification, Active speakers reduce the need to carry multiple devices such as separate amplifiers, saving time and effort during installation. In addition, many high-end Active speaker lines are also equipped with digital signal processing (DSP) technology, helping to optimize sound according to each space and purpose of use.

Research by Dr. James Wilson, 2023, “Advanced Audio Technology Review”, Audio Engineering Society, UK: Active speakers have 30% lower distortion than passive speakers when operated at high power, making them an ideal choice for professional audio applications.”

Convenience in small spaces and mobility

Active speakers are not only suitable for large spaces but are also the perfect choice for small spaces or mobile activities. Active speakers are often compact in design, have built-in rechargeable batteries and wireless connectivity, making them easy to carry and use anywhere. This is especially useful for group meetings, classes, or street performances.

Real-world example: The Bose S1 Pro Active Speaker weighs just 6,8kg and has a built-in rechargeable battery that can be used continuously for 11 hours, making it an ideal choice for street performers or outdoor parties.

In addition, many Active speaker lines are also equipped with water and dust resistance, helping them work well in harsh weather conditions. For example, the Electro-Voice Everse 8 speaker is IP43 waterproof, making it suitable for outdoor events.

Support for dedicated audio systems

Active speakers can not only be used independently but can also be integrated into dedicated sound systems, such as karaoke systems, recording studios, or public speaking events.

Active speakers have the ability to flexibly connect to other devices such as mixers, wireless microphones, or professional music playback devices. This makes Active speakers an indispensable part of complex sound systems, ensuring consistent sound quality and easy adjustment.

Suitable for personal and business needs

Active speakers not only serve entertainment needs but are also a powerful support tool for businesses and organizations. Active speakers are used in meetings, seminars, or training sessions thanks to their ability to produce clear sound and easy adjustment. This helps increase communication efficiency and convey messages in professional working environments.

Popular Active speaker lines today

Active speakers are divided into 3 main types: active subwoofers, active array speakers, and active karaoke speakers. Each type has its own characteristics, suitable for each usage need such as karaoke, stage, conference or family entertainment.

Active Subwoofer

Active Subwoofer, also known as subwoofer with built-in amplifier, is a line of speakers designed to reproduce powerful bass. With a built-in amplifier, active subwoofers can operate independently without the need for a separate amplifier. This line of speakers is often used in karaoke sound systems or large stages, providing deep and powerful bass.

Outstanding advantages:

• Integrated amplifier, easy to use without additional equipment.
• High bass performance, suitable for large spaces.
• Convenient and space saving installation.

Active Array Speaker

Active Array Speakers, also known as active array speakers, are designed to deliver wide and even sound effects in large spaces. This type of speaker usually includes many small speakers arranged in a vertical array, with the ability to adjust the frequency and angle of sound separately.

Popular applications:

• Use in music events, conferences, large stages or stadiums.
• Suitable for high-end home entertainment sound systems or professional karaoke rooms.

Outstanding advantages:

• Powerful, even and wide-ranging sound.
• Save space thanks to flexible installation on walls or ceilings.
• Can be adjusted to suit each usage environment.

Active Karaoke Speaker

Active Karaoke Speakers are a line of speakers with built-in power and sound processor, bringing maximum convenience to users. With diverse connection ports such as USB, Bluetooth, microphone and musical instrument jacks, this speaker line is suitable for home entertainment needs or karaoke business.

Outstanding advantages:

• Easily connect to multiple devices and music sources.
• Reasonable price, suitable for many users.
• Compact design, easy to install and use.

Comparing Active and Passive speakers: Which one should you choose?

Active and Passive speakers are the two most popular speaker lines in the modern audio world. Each type of speaker has its own unique characteristics in terms of design, capacity, performance, features, price, etc., suitable for different usage needs.

• Choose Active speakers when you need a sound system that is easy to use, portable and suitable for outdoor events.
• You should choose Passive speakers if you already have an amplifier, want to flexibly upgrade the system and use it in a closed space such as a music room.

Compare Active and Passive speakers

Below is a detailed comparison table between Active and Passive speakers based on important criteria:

Criteria	Active Speaker	Passive Speaker
Architect	Built-in 12 amplifier, modern, compact design. The back has a control panel with volume controls, EQ, and a power port.	No built-in amplifier, requires additional external equipment, more rigid design. The back only has connection ports such as speaker jacks, no control panel or power plug.
Wattage	Average capacity from 600 - 1000W, suitable for large spaces and outdoor events.	Average capacity from 350 - 400W, depending on the included power amplifier.
Sound performance	Stable, high quality sound thanks to integrated optimized amplifier.	Sound quality depends on the separate amplifier and is easily affected by external devices.
Mobility	Easy to move, some models have built-in rechargeable batteries, suitable for outdoor events.	Less flexible due to need to connect to amplifiers and other devices
Price	Higher price, average from 16 - 20 million VND for a high quality Active speaker.	Lower price, about 13 million VND, but need additional power amplifier (6-7 million VND).
Application	Suitable for home, events, halls, stages, and outdoor spaces.	Suitable for home spaces or closed spaces such as music rooms.
Possibility to upgrade	Limited upgrades, cannot change individual components such as amplifiers or speakers.	Flexible upgrade, can change amplifier or speaker according to needs.
Repair	Difficult to repair when damaged, higher repair costs.	Easier to repair due to separate components.

Should I choose Active or Passive speakers?

Choosing between Active and Passive speakers depends on your needs, budget, and level of audio knowledge. Here are some tips to help you make your decision:

Choose Active speakers if:

• You need an easy-to-use sound system, without the hassle of installation and connection.
• You often move or use speakers in outdoor events, halls, or stages.
• You want an all-in-one device, without the need to buy additional amplifiers or external devices.
• You are willing to invest more money for convenience and consistent sound performance.

Choose Passive speakers if:

• You already have an amplifier or want flexibility in upgrading your sound system.
• You need a fixed sound system, used in a closed space such as a music room or living room.
• You want to save on initial costs and don't mind a more complicated installation.
• You have the technical knowledge or willingness to learn to tune and optimize your audio system.

Carefully consider your needs, budget, and installation space to choose the type of speaker that best suits you. If you are still unsure, do not hesitate to consult with audio experts or go directly to the stores to experience it in person!

Phuc Truong installs sound system for the hall

Frequently asked questions about Active speakers

Do Active speakers support wireless technology?

Most modern active speakers support Bluetooth or Wi-Fi, allowing wireless connection to devices such as phones, tablets, or laptops. For example, the JBL PartyBox 310 speaker integrates Bluetooth 5.1, allowing stable connection within a range of 10-15m.

Are Active speakers suitable for karaoke systems?

Yes, Active speakers like JBL EON 610 or Yamaha DBR10 are often used in professional karaoke systems due to their ability to reproduce clear and powerful sound.

Can Active Speakers be used in education?

Yes, Active speakers are often used in classrooms or seminars due to their ability to amplify sound clearly. For example, the Mackie Thump 12BST speaker is suitable for presentations or lectures.

Can Active speakers connect to wireless microphones?

Yes, most Active speakers have XLR or TRS connections, allowing direct connection to wireless microphonesSome speaker lines like Bose S1 Pro also support Bluetooth connection with wireless microphone.

What are the common errors when using Active speakers?

Some common errors include:

• Overloading the power can cause distortion or damage to the speaker.
• Unstable power supply reduces the life of the amplifier circuit.
• Improper connection, resulting in loss of audio signal.

How to preserve Active speakers to prolong their life?

• Place the speaker in a dry place, away from moisture and high temperatures.
• Periodically clean the speaker membrane and connection port.
• Use a stable power source and avoid turning on the speaker at maximum volume for long periods of time.

 How to choose Active speakers suitable for the space?

• Small room (<20m²): Choose speakers with 100W – 300W capacity.
• Medium room (20-50m²): Choose speakers with 300W – 500W capacity.
• Large space (>50m²): Choose speakers with a capacity of over 500W.

What are the prominent Active speaker brands today?

Some notable brands include:

• JBL: Powerful sound quality, durable design.
• Yamaha: Detailed sound, suitable for stage and hall.
• Bose: Compact design, integrated with modern technology.
• Electro-Voice: High power, suitable for outdoor events.

Where to buy genuine Active speakers?

Phuc Truong Audio is one of the leading units in Vietnam specializing in providing genuine audio equipment, including Active speakers, Passive speakers, sound system, karaoke system, amplifier, karaoke head, and other professional audio equipment. With over 10 years of experience, Phuc Truong Audio has built a solid reputation in the audio industry thanks to product quality and excellent customer service.

In addition, Phuc Truong Audio also designs and installs sound for many large projects such as halls, stages, restaurants, cafes, and outdoor events.

Reasons to choose Phuc Truong Audio

• 100% genuine product: Phuc Truong Audio commits to providing genuine products with full certification documents from the manufacturer.
• Good warranty and after-sales policy: All products at Phuc Truong Audio are warranted from 12-24 months, depending on the brand.
• Professional consulting team: The staff at Phuc Truong Audio are well-trained and have in-depth knowledge of sound and related equipment.
• Competitive price: Phuc Truong Audio provides products at competitive prices, with regular promotions and discounts.
• Nationwide delivery service: Phuc Truong Audio supports nationwide delivery, ensuring products reach customers within 2-5 working days.

Contact Phuc Truong Audio now to own the best audio equipment for your space!