PCBA Consumer Electronics Live Music Player SMT Printed Circuit Board Assembly

PCBA  Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA  Applications

• Live Performance and Stage Monitoring: The PCBA processes and routes audio signals from instruments and microphones to stage monitors and front-of-house systems. It provides low-latency monitoring mixes for musicians, ensuring they can hear themselves and bandmates clearly during performances.

• Portable Busking and Street Performance: Powers battery-operated, all-in-one music players designed for street performers. The PCBA manages audio playback of backing tracks, powers built-in speakers, and provides microphone input mixing, enabling solo artists to deliver full-sounding performances anywhere.

• Rehearsal Space and Practice Amplification: Serves as the central audio hub for band rehearsals, mixing multiple instrument inputs, providing headphone outputs for silent practice, and powering PA speakers. Its robust design withstands the demands of frequent transport and setup in rehearsal environments.

• Outdoor Events and Mobile Entertainment: Enables reliable, weather-resistant audio playback for outdoor gatherings, parties, and mobile DJ setups. The PCBA manages power distribution from portable batteries and provides clean, distortion-free amplification for extended periods.

• Music Education and Classroom Instruction: Deployed in schools and music studios as a portable audio solution for teachers. It allows instructors to play backing tracks, connect demonstration instruments, and route audio to multiple student headphones for focused listening exercises.

• Small Venue and Café Entertainment: Powers compact PA systems used in intimate settings like coffee shops, wine bars, and small clubs. The PCBA provides sufficient clean amplification for acoustic acts and solo performers while maintaining a small footprint.

• Mobile DJ and Event Hosting: Drives all-in-one DJ systems that combine media playback, mixing controls, and amplification. The PCBA manages seamless track transitions, cueing, and audio output to both main speakers and headphones for beatmatching.

PCBA Features 

1. Multi-Channel Class-D Amplifier Array: The PCBA integrates a high-efficiency, multi-channel Class-D amplifier section capable of delivering substantial clean power (e.g., 50W-200W per channel) to main speakers and subwoofers while minimizing heat generation and extending battery life in portable applications.

2. Digital Signal Processor (DSP) with EQ and Effects: Features a powerful DSP that provides comprehensive audio processing including multi-band parametric EQ for room tuning, compression, limiting, and built-in effects (reverb, delay, chorus) essential for polishing live vocal and instrument sounds.

3. Multi-Input Mixer and Preamplifier Section: Incorporates multiple high-headroom preamplifier channels with phantom power for condenser microphones, instrument-level inputs for guitars, and line-level inputs for keyboards and media players, all with independent gain control and channel faders.

4. Bluetooth Audio Streaming and Control Module: Integrates Bluetooth for wireless music streaming from smartphones and tablets, and often supports control protocols that allow performers to adjust volume, select tracks, or change DSP presets remotely during performance.

5. Battery Management System (BMS) and Power Supply: Employs a sophisticated BMS for portable models, managing deep-cycle battery charging, monitoring state of charge, and providing protection against deep discharge. It seamlessly switches between battery and AC power without audio interruptions.

6. Low-Latency Monitoring and Auxiliary Outputs: Features dedicated auxiliary outputs with independent mixing capabilities, allowing performers to create custom monitor mixes. The PCBA ensures latency remains imperceptible (sub-3ms) for live vocalists and instrumentalists.

7. Ruggedized Connectors and Protection Circuitry: The PCBA is designed with robust, panel-mount connectors (XLR, 1/4-inch combo jacks, SpeakON) that withstand repeated plugging and unplugging. It includes comprehensive protection against over-current, over-voltage, and short circuits for reliability in live environments.

8. User Interface and Display Controller: Integrates drivers for bright, sunlight-readable LCD or LED displays showing critical information like level metering, battery status, and current DSP settings, along with interfaces for tactile knobs and switches that provide positive feel for stage use.

FAQ

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