Which is the best SIP sound column? How to choose the right SIP column?

I. Introduction to SIP Sound Columns

1. Definition and Principle

A SIP sound column is a revolutionary intelligent broadcasting device based on the Session Initiation Protocol (SIP). It ingeniously combines advanced digital audio processing technology and network communication technology to achieve high-quality sound transmission and flexible network integration. Its core advantage lies in the adoption of the SIP protocol, which is an open standard widely used in VoIP systems, enabling SIP sound columns to seamlessly integrate into modern IP network architectures.
The working principle of SIP sound columns mainly depends on digital signal processing technology. It converts analog audio signals into digital format and then transmits them through the network, greatly improving sound quality and transmission efficiency. This digital processing not only ensures sound quality but also realizes intelligent function expansion, such as remote control and automated management. With the support of the SIP protocol, SIP sound columns can easily achieve multi-party calls, emergency broadcasting, and other functions, playing an important role in various public places and enterprise environments.

2. Application Scenarios

With its excellent performance and flexibility, SIP sound columns show broad application prospects in multiple fields. The following are the main application scenarios of SIP sound columns:

1. Smart City: As an important part of the public safety and emergency management system, SIP sound columns can quickly issue alarms and evacuation instructions in emergency situations.
2. Campus Broadcasting: SIP sound columns can be used for daily announcements, music playback between classes, and instant broadcasting in emergency situations.
3. Parks and Scenic Areas: SIP sound columns not only provide background music and tour guide services but also can issue emergency notifications in special situations.
4. Factories and Enterprises: SIP sound columns play a crucial role in production scheduling, safety reminders, and other aspects.
5. Safe Communities: SIP sound columns have become an important tool for community announcements and security monitoring.

These application scenarios fully demonstrate the adaptability and important value of SIP sound columns in different environments, providing efficient and reliable audio solutions for various users.

II. Types of SIP Sound Columns

1. Power Classification

As a multifunctional audio device, SIP sound columns exhibit diverse characteristics in terms of power to adapt to different application scenarios and requirements. According to different powers, SIP sound columns can be divided into the following main categories:

1. Low-power Sound Columns (10W - 30W)

• Applicable Scenarios: Small meeting rooms, classrooms, offices
• Features: Compact size, low power consumption
• Representative Model: SV - 2401VP (2x15W)

2. Medium-power Sound Columns (40W - 60W)

• Applicable Scenarios: Medium-sized meeting rooms, large classrooms, small squares
• Features: Balanced sound quality and coverage range
• Representative Model: SV - 2403VP (1x40W)

3. High-power Sound Columns (80W - 120W)

• Applicable Scenarios: Large squares, stadiums, industrial plants
• Features: Strong volume and wide coverage range
• Representative Model: SV - 7042VP (Power adjustable, 10W to 120W)

It is worth noting that the power selection of SIP sound columns should be based on the requirements of the actual application scenario. For example, using a high-power sound column in a small meeting room may result in excessive sound volume, affecting the user experience. Conversely, in a large square or stadium, a low-power sound column may not achieve the required volume and coverage range.
In addition, the power of SIP sound columns is also related to their installation methods. Wall-mounted sound columns usually have lower power, while pole-mounted sound columns are more suitable for higher power. This is because pole-mounted sound columns often need to cover a larger space and are also easier to dissipate heat, so they can withstand higher power output.
When purchasing SIP sound columns, it is also necessary to consider their compatibility with other devices. For example, sound columns powered by POE (Power over Ethernet) are usually limited to 40W or less due to the power supply limitation of POE switches. Therefore, when selecting a high-power sound column, an additional independent power supply scheme may need to be considered.

2. Connection Methods

The connection methods of SIP sound columns mainly include Ethernet Interface and 4G Network Module. These two connection methods have their own characteristics and are suitable for different application scenarios:

1. Ethernet Interface

The Ethernet interface is the most commonly used connection method, and almost all SIP sound columns are equipped with this function. A typical SIP sound column product, such as SV - 704VP, is equipped with a 10/100M Ethernet interface. The advantages of this interface are:

• High-speed and Stable Data Transmission: Ensures audio quality and real-time performance
• Easy to Integrate into Existing Networks: No additional cabling is required
• Supports PoE Power Supply: Simplifies the installation process

However, the limitation of the Ethernet interface lies in its fixed position constraint. In some situations where it is difficult to lay network cables, other connection methods may need to be considered.

2. 4G Network Module

To solve the position constraint problem, some SIP sound columns have introduced a 4G network module. This connection method is particularly suitable for the following scenarios:

• Parks and Scenic Areas
• Construction Sites
• Temporary Activity Venues

The advantages of the 4G network module include:

• High Mobility: Not restricted by fixed network infrastructure
• Wide Coverage: Suitable for remote areas
• Quick Deployment: No complex installation process is required

Taking the SL50 model as an example, it supports 4G network communication services and can achieve SIP broadcasting functions in places without a fixed network.
In addition to the above main connection methods, some advanced SIP sound columns also provide additional connection options:

Connection Method	Description	Advantage
Wi-Fi Module	Wireless connection to the local area network	Provides flexibility and reduces cabling costs
Bluetooth Module	Enables short-distance wireless audio transmission	Convenient for personal device connection

When selecting the connection method of SIP sound columns, the following factors need to be comprehensively considered:

1. Application Scenario: Determine the most suitable connection method
2. Network Environment: Evaluate the existing network conditions
3. Budget Limitations: Weigh the costs of different connection methods
4. Future Expansion: Consider long-term usage requirements

By carefully evaluating these factors, the most suitable SIP sound column connection method for specific project requirements can be selected to ensure maximum system performance and return on investment.

3. Installation Methods

The installation methods of SIP sound columns are mainly divided into two categories: Wall-mounted and Pole-mounted. Wall-mounted installation is suitable for indoor scenarios such as meeting rooms and classrooms, while pole-mounted installation is more suitable for outdoor environments such as parks and squares. Pole-mounted installation is especially suitable for situations where a large area needs to be covered because it can increase the height of the sound column and expand the sound propagation range. Regardless of the installation method chosen, attention should be paid to the direction and angle of the sound column to optimize the sound coverage effect. In addition, considering the network connection requirements of SIP sound columns, it is necessary to ensure good connection with network devices during installation to fully utilize their network advantages.

III. Key Factors for Purchasing

1. Sound Quality Performance

When purchasing SIP sound columns, sound quality performance is undoubtedly one of the most important considerations. The quality of sound directly affects the user's auditory experience and the effectiveness of information transmission. The factors that affect the sound quality performance of SIP sound columns mainly include indicators such as sensitivity and frequency bandwidth.
An excellent SIP sound column should have the following characteristics:

1. High Sensitivity: Ensure that the sound can be clearly heard even at a relatively long distance
2. Wide Frequency Band: Can accurately reproduce various sound effects of human voices and music

Taking the SV - 7042TP model as an example, its technical parameters are as follows:

• Sensitivity: 107dB
• Frequency Response: 380Hz - 6.5kHz

These parameters indicate that this model has a good performance in sound quality. High sensitivity means that the sound column can generate sufficient sound pressure at a lower input level, thus ensuring the clarity and penetration of the sound. A wide frequency response range ensures that each frequency band from low to high can be well reproduced, making the sound more natural and full.
However, it should be noted that sound quality performance does not only depend on a single indicator. In practical applications, the following factors also need to be considered:

• Design of Speaker Units: Reasonable layout and material selection have a significant impact on sound quality
• Digital Signal Processing Technology: Advanced DSP algorithms can further improve sound quality, such as dynamic range compression, noise suppression, etc.
• Environmental Factors: Installation location, surrounding obstacles, etc. will all affect the final auditory experience

When comparing different models of products, in addition to paying attention to the above indicators, you can also intuitively feel the difference in sound quality through on-site audition. At the same time, the specific application scenario should also be considered to select the most suitable type of sound column. For example:

• Small Meeting Rooms: Focus on mid-high frequency performance
• Factory Workshops: Emphasize high power and anti-interference ability
• Outdoor Squares: Attach importance to long-distance propagation effect

By comprehensively evaluating these factors, a SIP sound column product that truly meets the requirements can be selected to ensure an ideal sound quality experience in various environments.

2. Power Requirements

When purchasing SIP sound columns, power requirements are a crucial factor that directly affects the performance and applicable scenarios of the sound columns. The power range of SIP sound columns usually varies from 10W to 120W, covering various needs from small meeting rooms to large outdoor venues.
To better understand the characteristics of SIP sound columns with different powers, we can divide them into three main categories:

1. Low-power Sound Columns (10W - 30W):

• Applicable Scenarios: Small meeting rooms, classrooms, offices
• Features: Compact size, low power consumption
• Market Share: Approximately 30%
• Representative Model: SV - 2401VP (2x15W)

2. Medium-power Sound Columns (40W - 60W):

• Applicable Scenarios: Medium-sized meeting rooms, large classrooms, small squares
• Features: Balanced sound quality and coverage range
• Market Share: Approximately 40%
• Representative Model: SV - 2403VP (1x40W)

3. High-power Sound Columns (80W - 120W):

• Applicable Scenarios: Large squares, stadiums, industrial plants
• Features: Strong volume and wide coverage range
• Market Share: Approximately 30%
• Representative Model: SV - 7042VP (Power adjustable, 10W to 120W)

It is worth noting that the power selection of SIP sound columns should be based on the requirements of the actual application scenario. For example, using a high-power sound column in a small meeting room may result in excessive sound volume, affecting the user experience. Conversely, in a large square or stadium, a low-power sound column may not achieve the required volume and coverage range.
In addition, the power of SIP sound columns is also related to their installation methods. Wall-mounted sound columns usually have lower power, while pole-mounted sound columns are more suitable for higher power. This is because pole-mounted sound columns often need to cover a larger space and are also easier to dissipate heat, so they can withstand higher power output.
When choosing the power of SIP sound columns, it is also necessary to consider their compatibility with other devices. For example, sound columns powered by POE (Power over Ethernet) are usually limited to 40W or less due to the power supply limitation of POE switches. Therefore, when selecting a high-power sound column, an additional independent power supply scheme may need to be considered.

3. Network Compatibility

In terms of network compatibility, SIP sound columns exhibit excellent adaptability. They not only support the standard SIP protocol but also are compatible with a variety of commonly used network protocols, ensuring seamless docking with various network environments. The following are the main network protocols supported by SIP sound columns:

Protocol Type	Specific Protocol
IP Layer Protocol	IP, ARP
ICMP Protocol	ICMP
DHCP Protocol	DHCP
UDP Protocol	UDP
DNS Protocol	DNS
IGMP Protocol	IGMP

This wide range of protocol support enables SIP sound columns to integrate easily into existing network architectures without the need for complex configurations or additional hardware support. Especially in the network environments of large enterprises and institutions, this compatibility is particularly important as it can effectively reduce deployment difficulties and maintenance costs.
It is worth mentioning that some high-end SIP sound columns also support the custom development of private protocols. This provides more possibilities for special application scenarios, such as the security communication systems of government agencies or the encrypted broadcasting networks of financial institutions. In this way, SIP sound columns can better meet the personalized needs of customers while ensuring the overall security of the system.
In practical applications, the network compatibility of SIP sound columns has been fully verified. Taking the SV - 7042VP model as an example, it has successfully achieved seamless docking with mainstream IPPBX systems. This means that users can easily expand audio broadcasting functions on the basis of the existing telephone system without having to rebuild the entire network architecture. This flexibility has greatly increased the market acceptance of SIP sound columns and made them the preferred solution for many organizations to upgrade their communication systems.
To further enhance network compatibility, some SIP sound column manufacturers have also launched special Software Development Kits (SDKs). These SDKs allow third-party developers to customize network functions according to specific requirements, such as implementing special codec algorithms or developing unique network transmission mechanisms. This openness not only enhances the functional diversity of SIP sound columns but also injects new vitality into the development of the entire industry.

4. Protection Level

When purchasing SIP sound columns, the protection level is a key factor that cannot be ignored. The protection level of SIP sound columns mainly follows the IPXX standard, where X represents the level of dustproof and waterproof capabilities. Common levels include:

Protection Level	Meaning	Applicable Scenarios
IP54	Prevents dust from entering and protects against splashing water	General indoor environments
IP65	Completely dustproof and protects against low-pressure water flow impact	Outdoor humid environments
IP67	Completely dustproof and provides short-term immersion protection	Areas near water or those that are frequently cleaned

Selecting an appropriate protection level can not only extend the service life of the equipment but also ensure its normal operation in harsh environments. For example, SIP sound columns installed outdoors should at least have an IP65 rating to withstand wind and rain. For special environments such as those around swimming pools, the IP67 rating is more suitable as it can resist short-term immersion without being affected.

IV. Top-notch SIP Sound Columns

1. High-end Brands

In the SIP sound column market, the competition among high-end brands is becoming increasingly fierce. YTAER Yintai'er, as a well-known brand focusing on the production of SIP network broadcasting sound columns, stands out with its high quality and innovative technology. The company is affiliated with Shenzhen Yamiou Technology Co., Ltd. With its strict quality management and advanced waterproof design, it has occupied a certain market share. The core advantages of YTAER's SIP sound columns include:

• Waterproof Performance: Suitable for complex environments
• POE Power Supply Technology: Simplifies the installation process
• Compatibility with the Standard SIP Protocol: Ensures system interoperability

These features have enabled YTAER's SIP sound columns to win a good reputation in the high-end market and become the preferred brand for many enterprises and institutions.

2. Performance Comparison

In the performance comparison of top-notch SIP sound columns, sound quality, power, and network compatibility are three key indicators. This section will focus on analyzing the differences in these aspects to help readers gain a more comprehensive understanding of the performance characteristics of top-notch SIP sound columns.

1. Sound Quality Performance

In terms of sound quality, top-notch SIP sound columns adopt advanced audio processing technologies to ensure excellent sound quality performance. Taking the SV - 7042TP model as an example, its technical parameters are as follows:

• Sensitivity: 107dB
• Frequency Response: 380Hz - 6.5kHz

These parameters indicate that this model has excellent performance in sound quality. High sensitivity ensures that the sound can be clearly heard even at a relatively long distance, while the wide frequency response range guarantees that each frequency band from low to high can be well reproduced.
In comparison, another high-end SIP sound column, SV - 2403VP, although with a relatively low power (1x40W), also performs excellently in sound quality. It adopts the built-in high-fidelity speaker technology and, combined with advanced digital signal processing algorithms, can provide clear and natural sound effects. This design is particularly suitable for scenarios with high requirements for sound quality, such as conference centers or concert halls.

2. Power Output

In terms of power output, top-notch SIP sound columns exhibit diverse characteristics. Taking the SV - 7042VP as an example, its power can be adjusted within the range of 10W to 120W. This flexible power adjustment ability enables this model to adapt to various application scenarios from small meeting rooms to large squares. In comparison, the SV - 2401VP (2x15W) is more suitable for use in small meeting rooms or classrooms.
It is worth noting that the choice of power not only affects the volume but also has a certain impact on sound quality. Generally speaking, sound columns with higher power can provide a larger coverage range while maintaining high sound quality. However, excessive power may also lead to sound distortion or harshness. Therefore, when selecting SIP sound columns, it is necessary to balance the relationship between power and sound quality according to the requirements of specific application scenarios.

3. Network Compatibility

Network compatibility is another key performance indicator of top-notch SIP sound columns. Taking the SV - 7042VP as a representative, this model supports multiple network protocols, including:

• Standard SIP (RFC3261) protocol
• VLAN
• L2TP / OpenVPN
• SRTP

This wide range of protocol support ensures that SIP sound columns can seamlessly access various network environments, whether it is an enterprise internal network or the Internet. Especially for scenarios with high security requirements, such as government departments or financial institutions, the SRTP encryption function provides additional security guarantees.
In addition, the SV - 7042VP also supports web page HTTP / HTTPS access, which greatly simplifies the management and maintenance process of the equipment. Administrators can remotely access and configure the sound columns through a standard browser interface without the need to install dedicated software, improving operational convenience.
Through the comparative analysis of the performance parameters of these top-notch SIP sound columns, we can see that they all have excellent performances in aspects such as sound quality, power, and network compatibility. When choosing SIP sound columns that suit your own needs, these factors should be comprehensively considered to ensure the best user experience.

V. Purchasing Suggestions

1. Scene Matching

When purchasing SIP sound columns, scene matching is a crucial factor. Different application scenarios have different requirements for SIP sound columns, and multiple aspects such as power, connection methods, and protection levels need to be comprehensively considered. The following are suggestions for selecting SIP sound columns for several typical scenarios:

1. Campus Broadcasting System

It is a typical application scenario for SIP sound columns. In this environment, it is recommended to use the SV - 7042VP model. This sound column has the following characteristics:

• Power: 40W, suitable for medium-sized classrooms and small auditoriums
• Connection Method: 10/100M Ethernet interface, facilitating integration into the campus network
• Protection Level: IP54, which is sufficient to cope with general indoor environments

The 40W power of the SV - 7042VP can meet the needs of most classrooms and small auditoriums, providing clear and loud sound. Its built-in 10/100M Ethernet interface enables it to be easily integrated into the campus network, realizing remote control and management. Although the IP54 protection level is not the highest, it is sufficient for indoor environments.

2. Scenic Area Broadcasting System

More environmental factors need to be considered in this case. In this situation, it is recommended to use the upgraded version of SV - 7042VP with added waterproof function. This sound column has the following characteristics:

• Power: 40W, suitable for open areas
• Connection Method: 10/100M Ethernet interface, facilitating integration into the scenic area network
• Protection Level: IP65, capable of coping with outdoor environments

The environment in scenic areas is usually complex, and there may be problems such as rain and dust. The upgraded version of SV - 7042VP adopts the IP65 protection level, which can effectively prevent moisture and dust from entering and ensure the long-term stable operation of the equipment. Meanwhile, its 40W power is also sufficient to cover a relatively large area of the scenic area.

3. Along Highways

It is another scenario that requires special consideration. In this environment, it is recommended to use high-power SIP sound columns, such as the high-power version of SV - 7042VP. This sound column has the following characteristics:

• Power: 80W - 120W, suitable for areas along highways
• Connection Method: 10/100M Ethernet interface, facilitating integration into the highway network
• Protection Level: IP67, capable of coping with extreme environments

The environment along highways has higher requirements for SIP sound columns. The high-power version of SV - 7042VP can provide a stronger volume to ensure that it can be clearly heard in vehicles traveling at high speeds. Meanwhile, the IP67 protection level can cope with various harsh weather conditions that may occur along highways, such as heavy rain, ice, and snow.
When selecting SIP sound columns, it is also necessary to consider their compatibility with other systems. For example, in a campus environment, it may be necessary to integrate with the existing access control system or fire protection system. In a highway environment, it may be necessary to cooperate with the traffic control system. Therefore, when purchasing, attention should not only be paid to the performance of the sound columns themselves but also to their integration ability with existing systems.

2. Budget Consideration

When purchasing SIP sound columns, budget consideration is a key factor. According to market research, the price range of SIP sound columns can be roughly divided into three levels:

Price Range	Representative Model	Power Range	Applicable Scenarios
1,000 - 3,000 yuan	SV - 2401VP	10W - 30W	Small meeting rooms, classrooms
3,000 - 5,000 yuan	SV - 2403VP	40W - 60W	Medium-sized meeting rooms, squares
5,000 yuan and above	SV - 7042VP	80W - 120W	Large squares, stadiums

It is worth noting that although high-end models like SV - 7042VP have a relatively high price, they have a wide adjustable power range and strong flexibility, and may be more cost-effective in the long term. In addition, users with sufficient budgets can also consider models with waterproof functions, such as sound columns with an IP65 protection level, which are suitable for outdoor use.