Power Supply Applications for Audio/Video Equipment
Applicable to TVs, monitors, speakers, projectors, AV equipment and more
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
