**1、 Project Overview**

Design and install a complete conference audio system for the conference room to meet the needs of daily meetings, presentations, speeches, and more.

**2、 Design Basis**

*Design Specification for Hall Sound Reinforcement System GB50371-2006

*Code for Electrical Design of Civil Buildings JGJ16-2008

*Code for Fire Protection Design of Buildings GB50016-2014 (2018 edition)

*The relevant drawings and technical requirements provided by Party A

**3、 System composition**

The conference audio system mainly consists of the following parts:

** * Sound source devices: * * Conference microphones, wireless microphones, DVD players, computers, etc

** * Signal processing equipment: * * mixing console, audio processor, feedback suppressor, etc

** * Power amplifier equipment: * * Power amplifier

** * Speaker System: * * Main PA Speaker, Auxiliary Speaker, Bass Speaker, etc

** * Peripheral devices: * * Cabinets, cables, connectors, etc

**4、 Equipment selection**

4.1 Sound source equipment

*Conference microphone: Choose a condenser microphone with strong directionality and high sensitivity, such as [brand model:] LBT]。

*Wireless microphone: Choose a UHF wireless microphone with good stability and strong anti-interference ability, such as [brand model:] LBT]。

*DVD player: Choose a DVD player with strong compatibility and good sound quality, such as [brand model:] LBT]。

*Computer: Party A shall provide it themselves.

4.2 Signal processing equipment

*Mixing console: Choose a mixing console with a sufficient number of channels and easy operation, such as [brand model:] LBT]。

*Audio processor: Choose a powerful and high-quality audio processor, such as [brand model:] LBT]。

*Feedback Suppressor: Choose a feedback suppressor with significant suppression effect and minimal impact on sound quality, such as [brand model:] LBT]。

4.3 Power amplification equipment

*Power amplifier: Choose a power amplifier with sufficient power and stable performance, such as [brand model:] LBT]。

4.4 Speaker System

*Main sound reinforcement speaker: Select speakers with high sound pressure level and wide coverage range, such as [brand model:] LBT]。

*Auxiliary speaker: Choose a compact and easy to install speaker, such as [brand model:] LBT]。

*Low frequency speaker: Choose a low-frequency speaker with deep diving and sufficient energy, such as [brand model:] LBT]。

4.5 Peripheral devices

*Cabinet: Choose a cabinet with good heat dissipation and sufficient space.

*Wire: Select high-quality oxygen free copper wire.

*Connectors: Choose connectors with good contact and strong durability.

**5、 System connection**

5.1 The audio source device is connected to the input channel of the mixing console through an audio cable.

5.2 The main output channel of the mixing console is connected to the input channel of the audio processor through an audio cable.

5.3 The output channel of the audio processor is connected to the input channel of the power amplifier through an audio cable.

5.4 The output channel of the power amplifier is connected to the speaker system through the speaker cable.

**6、 Installation and debugging**

6.1 Equipment Installation

*All equipment should be installed according to the design drawings to ensure firm installation and accurate positioning.

*Speaker installation should consider sound field coverage and aesthetics to avoid blind spots.

*The cable laying should be neat and beautiful, avoiding cross winding, and properly labeled.

6.2 System Debugging

*Use professional testing instruments to debug the system and ensure that all indicators meet the design requirements.

*Adjust the angle and position of the speaker, optimize the sound field coverage, and avoid sound feedback.

*Set appropriate volume, balance, and effect parameters according to actual usage needs.

**7、 Acceptance criteria**

7.1 The system has complete functions and meets the design requirements.

7.2 The sound quality is clear and natural, the sound field is uniform, and there is no obvious distortion or noise.

7.3 The system is easy to operate and maintain.

**8、 Construction schedule plan**

|Serial number | Job responsibilities | Start time | End time | Remarks|

|---|---|---|---|---|

|1 | On site investigation | | ||

|2 | Scheme Design | | ||

|3 | Equipment procurement | | ||

|4 | Equipment Installation | | ||

|5 | System Debugging | | ||

|6 | System acceptance | | ||

**9、 Safe and civilized construction**

*Construction personnel should strictly follow safety operating procedures and wear protective equipment such as safety helmets.

*The construction site should be kept clean, materials should be neatly stacked, and garbage should be cleaned up in a timely manner.

*During the construction process, attention should be paid to protecting the on-site facilities to avoid damage.

**10、 After sales service**

*Provide one-year free warranty service, with free repair or replacement of faulty equipment during the warranty period.

*Provide lifelong technical support to promptly solve any problems encountered by users during use.

**11、 Attachment**

*System schematic diagram

*Equipment List

*Material List

**12、 Remarks**

*This plan is for reference only, and the specific content can be adjusted according to the actual situation.

*Before construction, sufficient communication should be made with Party A to confirm the design plan and construction details.