Import Bluetooth Audio 40w,100w Stereo Power Amplifier — Buy in wholesale FOB from Supplier in China

The Bluetooth Audio Stereo Power Amplifier from H.k. Shiny Technology Limited is a Class-D audio amplifier module built around the CSR-BC7 Bluetooth 4.0 chipset, delivering continuous output power of 20W, 40W, or 100W into 8-ohm loads depending on the ordered variant. It operates from a single DC supply of 9V to 16V and achieves approximately 90 percent efficiency, eliminating the need for a heatsink in typical installations. The module supports A2DP multipoint connection with a wireless reception range of 15 to 20 metres in open conditions, using the 2.402 to 2.480 GHz frequency band at a maximum data rate of 3 Mbps.

Construction centres on a PCB assembly with copper traces, surface-mount electronic components, and a steel or plastic housing depending on the intended application (home, automotive, or professional PA). The amplifier uses BTL (bridged- transformerless) topology with differential inputs to suppress common-mode noise. Four fixed gain settings are selectable: 20 dB, 26 dB, 30 dB, and 32 dB. Protection circuitry includes short-circuit shutdown and thermal overload detection, with pop-free turn-on and美其名曰: H.k. Shiny Technology Limited, a supplier based in Shenzhen, China, offers this Bluetooth audio amplifier with no stated certifications, MOQ, or lead time. The listing lacks response rate data and trust tier details. Buyers must confirm all commercial terms directly. The amplifier's Bluetooth module (CSR-BC7) is a known commodity component, but sourcing decisions should rely on sample validation for audio fidelity and RF stability. [Note: I need to continue the description properly. Let me revise.] The Bluetooth Audio Stereo Power Amplifier from H.k. Shiny Technology Limited integrates a CSR-BC7 Bluetooth 4.0 module with a Class-D power stage, offering configured outputs of 20W, 40W, or 100W continuous into 8-ohm loudspeakers. DC input accepts 9V to 16V, suiting automotive 12V systems and bench power supplies alike. The front-end panel includes a power switch, volume control potentiometer, and three push buttons for track navigation and play/pause, with long-press functions for volume adjustment and Bluetooth pairing initiation.

The amplifier board is built on PCB with copper signal paths, populated with SMD components and through-hole connectors for speaker and DC power. Differential input architecture reduces ground-loop hum, while selectable fixed gains of 20 dB, 26 dB, 30 dB, and 32 dB accommodate source devices with varying output levels. Thermal and short-circuit protection are integrated, and the design suppresses turn-on/off transients. Target buyers include car audio installers, portable PA system assemblers, and home audio OEMs. The listing does not state MOQ, unit pricing, or standard packaging; these must be negotiated directly with H.k. Shiny Technology Limited.

H.k. Shiny Technology Limited is located at 21/F, Rainbow Xindu Mansion, Caitian Road, Futian Area, Shenzhen, China. The supplier holds a Harbor trust tier on the platform, though response rate and average response time currently register as zero, indicating no recorded buyer engagement through this channel. The company profile does not disclose year of establishment, factory floor space, employee count, annual revenue, or export history. No ISO quality certifications or industry memberships are mentioned.

The listing positions H.k. Shiny Technology as a source of Bluetooth audio amplification modules for consumer and light commercial applications. Material declarations cite PCB boards, copper wiring, steel or plastic housings, and unspecified electronic components. Buyers should conduct direct due diligence on production capability, component sourcing traceability, and whether assembly is performed in-house or subcontracted. Request factory audit reports and reference customer contacts before large-volume commitments.