APPLICATION

LATEST MEWS

015V2A USB Charger with CN/US/EU/UK/JP Specifications | USB Charger Head Product & Original Factory Overview
025V1A Charger Certified | USB Charger Product and Source Factory Introduction
03How to confirm that a power adapter product has genuine CCC certification?
04Complete Guide to Power Adapters: From Basic Concepts to Professional Selection | Keyulong Technology
05Non-standard Power Adapter vs. Certified Power Adapter: How to Accurately Identify?
0612V2A Power Adapter (PSR) – A Cost-Effective Choice, a Reliable Partner for Security Surveillance and LED Lighting

Meng Huaming | Account Manager

Mobile: 18129821159

QQ: 942528869

Email: 942528869@qq.com

Mr. Chen | Key Account Manager

Tel: 13590301618

Email: szkeyulong@163.com

Fax: 0755-29472639

Company Address:
4th Floor, Building 2, QinHui Road, Guxing Community, Xixiang Street, Bao'an District, Shenzhen, China

Audio/Video

HomeAudio/Video

Power Supply Applications for Audio/Video Equipment

Applicable to TVs, monitors, speakers, projectors, AV equipment and more

Audio Video.jpg

In the audio/video equipment field, the power adapter is a fundamental component ensuring stable audio and video quality output. From TVs and speakers in home theaters to monitors and projectors in professional studios, and AV equipment in conference systems — the clear picture quality and pure sound of every device depend on a stable, low-ripple, anti-interference power adapter. Below is a comprehensive overview of power application solutions and selection references for various types of audio/video equipment.

I. Overview of Power Supply Applications for Audio/Video Equipment

Equipment Category	Typical Products	Recommended Power	Recommended Voltage/Current	Power Requirements
Display Equipment	TVs, monitors, commercial displays, etc.	12-60W	12V2A / 12V3A / 24V2A, etc.	Stable output, low ripple, flicker-free
Audio Equipment	Powered speakers, amplifiers, subwoofers, etc.	12-48W	12V2A / 12V3A / 24V1.5A, etc.	Low noise, fast dynamic response
Projection Equipment	Home projectors, commercial projectors, etc.	18-60W	12V2A / 12V3A / 19V3A, etc.	Good heat dissipation, long-term operation
AV Peripherals	Video matrices, capture cards, splitters, etc.	6-18W	5V1A / 12V1A / 12V1.5A, etc.	Anti-interference, electromagnetic compatibility
Conference Systems	Video conference terminals, microphone arrays, etc.	12-24W	12V1.5A / 12V2A, etc.	Low noise, stable and reliable

II. Power Supply Applications for Display Equipment

2.1 TVs and Monitors

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Home monitors (21-27 inches), etc.	12-24W	12V2A, etc.	Stable output, no screen flicker
Home monitors (32 inches and above), etc.	24-36W	12V3A, etc.	High-power stable output
Office monitors, etc.	12-24W	12V2A, etc.	Low standby power, energy-saving certification
Professional design monitors, etc.	24-36W	12V3A, etc.	High-precision voltage stabilization, stable color reproduction
TVs (32-43 inches), etc.	24-48W	12V3A / 24V2A, etc.	Long-term operation, good heat dissipation
TVs (50 inches and above), etc.	48-60W	24V2.5A / 24V3A, etc.	High-power output, overload protection

Applicable Scenarios: Home theaters, offices, gaming venues, commercial displays

2.2 Commercial Display Equipment

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Advertising displays, etc.	24-48W	12V3A / 24V2A, etc.	24/7 operation, high reliability
Self-service kiosks, etc.	24-36W	12V3A, etc.	Stable touchscreen power supply
Interactive whiteboards, etc.	24-48W	12V3A / 24V2A, etc.	Stable power during multi-touch operation
Digital signage, etc.	18-36W	12V2A / 12V3A, etc.	Long-term operation, wide temperature operation

Applicable Scenarios: Shopping malls, airports, stations, educational institutions, exhibition halls

III. Power Supply Applications for Audio Equipment

3.1 Powered Speakers and Multimedia Speakers

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Desktop multimedia speakers, etc.	6-12W	12V1A, etc.	Low ripple, no background noise
Powered bookshelf speakers, etc.	12-24W	12V2A, etc.	Fast dynamic response
Bluetooth speakers, etc.	6-18W	12V1A / 12V1.5A, etc.	Low standby power
Soundbars, etc.	18-36W	12V2A / 12V3A, etc.	Instantaneous power response

3.2 Amplifiers and Subwoofers

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Low-power amplifiers, etc.	12-24W	12V2A, etc.	High dynamic current capability
Subwoofer amplifiers, etc.	24-48W	12V3A / 24V2A, etc.	High instantaneous power output for low frequencies
Studio monitor speakers, etc.	18-36W	12V2A / 12V3A, etc.	High-precision voltage stabilization, no interference

IV. Power Supply Applications for Projection Equipment

4.1 Home Projectors

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
LED portable projectors, etc.	12-24W	12V2A, etc.	Compact size, good heat dissipation
Home smart projectors, etc.	24-36W	12V3A / 19V2A, etc.	Long-term operation, low noise
Laser projection TVs, etc.	48-60W	19V3A / 24V2.5A, etc.	High-power stable output

4.2 Commercial Projectors

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Educational projectors, etc.	24-48W	12V3A / 19V3A, etc.	Good heat dissipation, dustproof design
Engineering projectors, etc.	48-60W+	24V3A, etc.	High-power output, high reliability
Short-throw projectors, etc.	24-48W	12V3A / 19V3A, etc.	Long-term operation

V. Power Supply Applications for AV Peripherals

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
HDMI matrices/splitters, etc.	6-12W	12V1A, etc.	Anti-interference, stable signal
Video capture cards, etc.	5-10W	5V1A / 12V1A, etc.	Low ripple, does not affect capture quality
Video converters, etc.	3-6W	5V1A / 12V0.5A, etc.	Stable power supply, plug-and-play
Signal extenders, etc.	6-12W	12V1A, etc.	Long-distance power supply, line loss compensation
Audio decoders, etc.	6-12W	12V1A, etc.	Low noise, high fidelity
Microphone receivers, etc.	5-10W	12V1A / 5V2A, etc.	Low interference, stable reception

VI. Power Supply Applications for Conference and Live Streaming Equipment

Equipment Type	Typical Power	Recommended Power Specs	Power Requirements
Video conference terminals, etc.	12-24W	12V1.5A / 12V2A, etc.	Stable and reliable, anti-interference
Omnidirectional microphones, etc.	5-10W	5V2A / 12V1A, etc.	Low noise, no echo interference
Live streaming switchers, etc.	12-24W	12V2A, etc.	Stable multi-channel signal processing
Wireless microphone receivers, etc.	5-12W	12V1A, etc.	Low interference, stable reception

VII. Power Supply Specification Quick Selection Guide

Output Voltage	Output Current	Rated Power	Applicable Equipment
5V	1.0A	5W	Video capture cards, audio decoders, small converters, etc.
5V	2.0A	10W	Microphone receivers, Bluetooth speakers, etc.
12V	1.0A	12W	HDMI matrices, video splitters, desktop speakers, etc.
12V	1.5A	18W	Video conference terminals, Bluetooth speakers, soundbars, etc.
12V	2.0A	24W	Monitors, powered speakers, home projectors, amplifiers, etc.
12V	3.0A	36W	Commercial displays, smart projectors, subwoofers, etc.
19V	2.0A	38W	Portable projectors, all-in-ones, etc.
19V	3.0A	57W	Commercial projectors, laser TVs, etc.
24V	1.5A	36W	Amplifiers, subwoofers, etc.
24V	2.0A	48W	Large displays, commercial projectors, etc.

Plug Types: China, US, EU, UK, Korea, Japan, Australia, etc. | Output Interfaces: 5.5×2.1, 5.5×2.5, Type-C, etc. | Cable Lengths: 1.0m / 1.5m / 3m / 5m, etc. All customizable.

VIII. Power Supply Selection Recommendations for Different Scenarios

Scenario 1: Home Theater System

Equipment: 1 TV/monitor, 2 powered speakers, 1 projector

Recommended Power Supply: 12V3A ×1 + 12V2A ×2 + 12V3A ×1

Power Requirements: Output ripple ≤200mV, low noise, stable long-term operation

???? Scenario 2: Conference Room System

Equipment: 1 commercial display, 1 video conference terminal, 1 omnidirectional microphone, 1 HDMI matrix

Recommended Power Supply: 12V3A ×1 + 12V2A ×1 + 5V2A ×1 + 12V1A ×1

Power Requirements: Anti-interference, electromagnetic compatibility, stable and reliable

Scenario 3: Live Streaming/Recording Studio

Equipment: 2 professional monitors, 2 studio monitor speakers, 1 audio decoder, 1 video capture card, 2 microphone receivers

Recommended Power Supply: 12V2A ×2 + 12V2A ×2 + 12V1A ×1 + 5V1A ×1 + 12V1A ×2

Power Requirements: Low ripple, low noise, high fidelity, no electromagnetic interference

Scenario 4: Commercial Display/Digital Signage

Equipment: 2 advertising displays, 1 digital signage player

Recommended Power Supply: 12V3A / 24V2A ×2 + 12V1A ×1

Power Requirements: 24/7 operation, wide temperature operation, high reliability

IX. Product Form Factor Description

Wall-mount — Home monitors, speakers, projectors Desktop — Commercial displays, amplifiers, conference terminals Built-in — All-in-ones, powered speakers

X. Certification Information

Audio/video equipment is exported to different countries, and power adapters must meet the corresponding market access requirements. Below are some of the certifications we offer. Contact us for more details.

CCC CE UL FCC UKCA PSE KC RoHS ERP

Different countries and regions have different certification requirements for power supplies. Please select the corresponding certified version according to your target market.

Get Your Audio/Video Power Solution

Key Account Hotline: 13590301618

Sales Inquiries: 18129821159

Website: www.szkeyulong.com

Search "Keyulong Power" on 1688 | Headquarters Address: Factory Building 401, No. 2 QinHui Road, Guxing Community, Xixiang Street, Bao'an District, Shenzhen