20W Dual-Channel D-Class Amplifier – Factory Direct Supply with Bluetooth & USB, OEM/ODM Supported
Our 20W dual-channel D-class amplifier is a high-performance, cost-effective audio solution designed for home, small business, and commercial use. Adopting advanced D-class technology, it delivers clear, powerful sound with low power consumption and minimal heat generation, ensuring stable operation even for long-term use.
Equipped with built-in Bluetooth and USB ports, this amplifier supports wireless and wired audio playback effortlessly. You can connect your smartphone, tablet, or USB drive directly to enjoy your favorite music, podcasts, or background music without complicated wiring. The dual-channel design allows independent control of two audio outputs, making it ideal for pairing with speakers in different areas.
As a professional manufacturer, we offer factory direct sales, cutting out middlemen to provide you with the most competitive prices. We fully support OEM and ODM customization to meet your specific needs, including logo printing, appearance design, function adjustment, and packaging customization. Our strict quality control system ensures each product meets international standards, with CE, ROHS, and FCC certifications.
Compact and lightweight, this amplifier is easy to install and carry, suitable for various scenarios such as home theaters, small shops, offices, and conference rooms. With reliable performance, convenient operation, and flexible customization options, it is your ideal partner for audio amplification needs. Contact us now to get the best wholesale price and start your cooperation!
Application Scenarios
1. Home Theater & Multi-Room Audio – The dual-channel output enables independent zone control, allowing users to power speakers in the living room and bedroom simultaneously. Bluetooth connectivity eliminates cable clutter, while USB playback supports background music for daily activities and entertainment.
2. Retail Stores & Boutiques – Compact size and simple operation make it ideal for small retail spaces. Connect via Bluetooth to stream curated playlists that enhance the shopping atmosphere, or use USB for looping promotional audio content. The low power consumption keeps operating costs minimal for all-day use.
3. Office & Conference Rooms – Power ceiling or wall-mounted speakers for clear audio during presentations, video conferences, and company announcements. The dual-channel design supports separate zones for the main meeting area and waiting lounge.
4. Hospitality & Restaurants – Provide background music in dining areas and lobbies. The amplifier's metal enclosure and efficient heat dissipation ensure reliable operation throughout extended business hours. OEM customization allows matching the unit aesthetics to your brand identity.
5. Educational & Training Facilities – Compact classrooms and training rooms benefit from the amplifier's straightforward setup. Instructors can wirelessly stream audio from tablets for multimedia lessons, while USB playback handles pre-recorded training materials.
Customer Case Studies
Case 1: Southeast Asian Retail Chain – 120-Store Audio Upgrade
A fast-growing convenience store chain in Thailand deployed our 20W dual-channel amplifiers across 120 locations. Each store uses one amplifier to power two ceiling speakers covering the sales floor and cashier area. The client chose our OEM service with branded front panels and pre-configured Bluetooth pairing for instant setup. After six months of operation, zero units required servicing, and the client placed a repeat order of 200 units. Key result: 35% cost savings compared to their previous imported amplifier supplier.
Case 2: European Boutique Hotel – 45-Room Background Music System
A boutique hotel chain in Portugal integrated 45 of our amplifiers into guest rooms for personalized in-room audio. Each amplifier connects to a ceiling speaker and a wall-mounted volume controller. Guests stream music via Bluetooth from their own devices. The hotel's technical team praised the amplifier's stable Bluetooth connection range and the USB backup playback feature for housekeeping announcements. Custom packaging with multilingual manuals was provided under our ODM program. Project completed within 4 weeks from order to delivery.
Case 3: Middle Eastern Educational Institution – 60-Classroom Installation
A private school in Dubai equipped 60 classrooms with our amplifiers to support smart-board audio systems. Each amplifier powers two wall speakers, with Bluetooth used for teacher tablet connectivity and USB for playing language learning audio files. The school required CE and FCC certified products with child-safe metal enclosures. Our factory delivered the full order in 20 working days. The institution reported a 98% satisfaction rate among teaching staff after one academic term, highlighting ease of use and clear sound quality.
Case 4: South American Restaurant Group – 30-Location Deployment
A Peruvian restaurant group operating 30 locations adopted our amplifier for background music and promotional audio. Each restaurant uses the dual-channel output to independently control indoor dining and outdoor terrace speaker zones. Bluetooth streaming from a centrally managed tablet ensures consistent music programming across all locations. The client appreciated our flexible MOQ of 100 units and fast 30-day delivery, enabling a phased rollout without inventory pressure. After one year, they expanded their order to include a custom black matte finish under OEM terms.
