English
English French German Portuguese Spanish Russian Japanese Korean Arabic Irish Greek Turkish Italian Danish Romanian Indonesian Czech Afrikaans Swedish Polish Basque Catalan Esperanto Hindi Lao Albanian Amharic Armenian Azerbaijani Belarusian Bengali Bosnian Bulgarian Cebuano Chichewa Corsican Croatian Dutch Estonian Filipino Finnish Frisian Galician Georgian Gujarati Haitian Hausa Hawaiian Hebrew Hmong Hungarian Icelandic Igbo Javanese Kannada Kazakh Khmer Kurdish Kyrgyz Latin Latvian Lithuanian Luxembou.. Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Burmese Nepali Norwegian Pashto Persian Punjabi Serbian Sesotho Sinhala Slovak Slovenian Somali Samoan Scots Gaelic Shona Sindhi Sundanese Swahili Tajik Tamil Telugu Thai Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa Yiddish Yoruba Zulu Kinyarwanda Tatar Oriya Turkmen Uyghur
Leave Your Message
Products Categories
Featured Products
Open Frame Power Supply PCB Assembly--STHL

Open Frame Power Supply PCB Assembly-...
Modular Power Supply PCB Assembly--STHL

Modular Power Supply PCB Assembly--STHL
Redundant Power Supply PCB Assembly--STHL

Redundant Power Supply PCB Assembly--...
Hot-Swappable Power Supply PCB Assembly--STHL

Hot-Swappable Power Supply PCB Assemb...
Load Balancer PCB Assembly

Load Balancer PCB Assembly
Network Interface Card PCB Assembly

Network Interface Card PCB Assembly
Wi-Fi Module PCB Assembly

Wi-Fi Module PCB Assembly
Bluetooth Module PCB Assembly

Bluetooth Module PCB Assembly
Repeater PCB Assembly

Repeater PCB Assembly
Optical Transceiver PCB Assembly

Optical Transceiver PCB Assembly
Product Title Inertial Navigation System (INS) PCBA Assembly--STHL.png

Smart Speaker PCB Assembly--STHL

 Smart speaker PCBs act as the core hub for audio playback, voice assistant processing, and smart home device control. They integrate high-sensitivity far-field microphone arrays, high-power audio amplifiers, stable Wi-Fi and Bluetooth modules, and efficient application processors. Our manufacturing focuses on enhancing RF signal stability and ensuring audio signal purity, effectively reducing electromagnetic interference and noise. Strict circuit optimization guarantees accurate long-distance voice capture and rich, distortion-free sound. With reliable assembly and rigorous testing, these PCBs support smooth smart home interconnection, responsive voice interaction, and high-quality audio output, making them ideal for smart home and modern living environments.

    Contact us

    Smart Speaker PCB Assembly--STHL

    Early challenges in smart speaker adoption—such as weak voice signal pickup, electromagnetic interference (EMI), and unstable intelligent linkage transmission—have been overcome by specialized PCB assembly technologies, particularly rigid-flex PCBs and high-precision surface mount technology (SMT). These innovations effectively enhance the sensitivity of analog front-ends for capturing faint human voice and audio electrical signals, while integrating EMI shielding layers to eliminate interference from household appliances and wireless communication devices. Rigid-flex PCBs, in particular, balance streamlined compact form factors with reliable signal transmission, supporting the lightweight shell design of multi-style smart speakers without deteriorating sound quality and voice recognition accuracy. This technological leap has enabled smart speaker PCB assemblies to outperform traditional audio control circuits in key areas:

    • Superior Signal Integrity

      Advanced impedance-controlled routing and ultra-low-noise PCB substrates minimize signal attenuation during the capture and amplification of voice pickup and audio playback signals. Equipped with high-resolution (≥16-bit) ADC integration, they ensure the clarity of voice recognition waveforms, laying the foundation for high-precision human voice identification and noise cancellation processing.

    • Versatile Form Factor Adaptability

      Compliant with IEC 62368 consumer electronic safety standards, the assemblies adopt reinforced isolation designs (such as opto-isolation and galvanic isolation) to prevent electrical leakage risks. Skin-friendly harmless materials used in PCB substrates and conformal coatings also avoid skin allergies, ensuring comfort for long-term wearable contact.

    • Reliable Long-Term Operation

      ENIG (Electroless Nickel Immersion Gold) surface finishes and dust-proof conformal coatings (IP67 rating) provide excellent oxidation resistance and dust protection. Combined with rigorous temperature and vibration testing, the assemblies maintain stable performance in daily household environments and during long-term uninterrupted voice standby and audio playback.

    Key Applications Across Smart Home Sectors

    Smart speaker PCB technology powers intelligent voice interaction and high-fidelity audio playback in diverse household and commercial intelligent scenarios.

    Household Smart Living Rooms

    In-ear TWS bluetooth headsets and semi-open music earphones, featuring low-latency audio decoding and high-fidelity sound quality functions, integrated with smart terminal systems for seamless audio pairing.

    Commercial Offices & Exhibition Halls

    Public intelligent voice speakers and background audio broadcasting terminals, built with anti-interference circuits and stable decoding chips to ensure clear sound output in noisy commercial environments.

    Bedroom & Personal Leisure Spaces

    Compact bedside smart speakers and low-power voice players, leveraging energy-saving circuit design and silent standby mode for timed audio playback and personal voice assistant service.

    Intelligent Hotel & Serviced Apartments

    Hotel dedicated voice control speakers and embedded audio devices, supporting customized voice control and scene mode switching, providing convenient intelligent service for hotel room management and guest experience optimization.

    Why STHL PCBA should be your top choice for your LED PCBA needs?

    Let's explore the top 10 reasons why!

    Real Factory

    STHL PCBA is a real factory with 10,000+m² highly automated, dust-free factory，7 SMT lines, 2 DIP lines, 2 FCT lines, and 2 box building assembly lines. 

    Quality Guarantee

    We buy components from famous international platform like Mouser, Digikey, Farnell, Future, Avnet, Arrow or the agents. No components substitutes without customers approval!

    Rich Experience

    20+ years of experience in PCB & PCBA field.

    Cost Dowm

    Professional engineering team supports cost down.

    Global Sourcing

    500k parts with 100+ agents and suppliers.

    No MOQ

    No minimum order requests, we accept both prototype and volume quantity orders.

    Fully Certified

    With IATF16949, ISO9001, ISO14001, ISO13485 Certifications.

    NDA

    We ensure all of your projects documents security and sign NDA before RFQ.

    Intelligent Management

    Use Intelligent ERP system, MES (manufacturing execution system) for fast tracking.

    Fast Delivery

    Prototype orders will be fast completed and delivered, mass orders lead time is 4~5 weeks.

    About STHL PCB & PCBA

    LED PCB Assembly Revolutionizing Lighting Technology with Precision and Per (1)

    Shenzhen STHL Technology Co., Ltd. is a high-quality provider of electronics manufacturing services (EMS) in China, we serve customers worldwide along the whole industry chain including product design, material sourcing, PCBA production, cable assembly, box build assembly and comprehensive testing services.

    Established in 2006, we have more than 20 years of experience in electronics contract assembly manufacturing. Currently, we employ more than 220 staff members. Our 10,000 sqm facilities include 7 surface-mount technology (SMT) production lines, 2 through hole technology (THT) lines , 2 function testing lines and 2 box build production lines.

    At STHL, we provide electronics assembly services for energy power, communications, consumer electronics, computers & storage, safety & security, commercial and industrial products. Customers mainly from United States, Brazil, United Kingdom, Germany, Spain, Italy, Poland and . As an IATF16949，ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products exactly comply with ROHS standard and quality guarantee. Based on our excellent engineering and production capacities in technical areas such as materials analysis & storage, advanced equipment, reliability testing (AOI, X-RAY, ICT test and function test), high effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers wordlwide.

    Products Capability

    Items

    PCB capacity

    PCB name

    LED PCB Assembly: Revolutionizing Lighting Technology with Precision and Performance

    Material

    FR-4; High TG FR-4; Aluminum; CEM-1; CEM-3; Rogers, etc

    PCB type

    Rigid, flexible, rigid-flexible

    Layer NO.

    1, 2, 4, 6, up to 24 layer

    Shape

    Rectangular, round, slots, cutouts, complex, irregular

    Max PCB dimensions

    1200mm*600mm

    Board Thickness

    0.2mm-4mm

    Thickness Tolerance

    ±10%

    Min Hole Size

    0.1mm (4 mil)

    Copper Thickness

    0.5 OZ-3OZ (18 um-385 um)

    Copper Plating hole

    18um-30um

    Min Trace Width

    0.075mm (3mil)

    Min Space Width

    0.1mm (4 mil)

    Surface finish

    HASL, LF HASL, Imm Gold, Imm Silver, OSP etc

    Solder mask

    Green, red, white, yellow, blue, black, orange, purple

    Assembly details

    SMT and Thru-hole, ISO SMT and DIP lines

    Testing on products

    Testing jig/mold , X-ray Inspection, AOI Test, Functional test

    Quantity

    Min quantity : 1pcs. Prototype, small order, mass order, all OK

    Products Capability

    Files needed

    PCB : Gerber files(CAM, PCB, PCBDOC)

    Components : Bill of Materials(BOM list)

    Assembly : Pick-N-Place file

    PCB Panel Size

    Min size : 0.25*0.25 inches(6*6mm)

    Max size : 1200*600mm

    Components details

    Passive Down to 0201 size

    BGA and VFBGA

    Leadless Chip Carriers/CSP

    Double-sided SMT Assembly

    Fine BGA Pitch to 0.2mm(8mil)

    BGA Repair and Reball

    Part Removal and Replacement

    Component package

    Cut Tape, Tube, Reels, Loose Parts

    PCB+ assembly process

    Drilling---Exposure---Plating---Etaching & Stripping---Punching---Electrical Testing---SMT---Wave

    Soldering---Assembling---ICT---Function Testing---Temperature & Humidity

    13
    01

    Digital Innovation

    APPhored (7)
    01

    Digital Innovation

    DSC_3571
    01

    Digital Innovation

    Material are (1)
    01

    Digital Innovation

    第24点图替换组合配图1
    01

    Digital Innovation

    DIP 1
    01

    Digital Innovation

    How to Get Started with STHL

    Ready to partner with us for your LED PCB Assembly project? Here’s how you can get started

    • Contact Us

      Contact Us

      Reach out to our sales team via phone, email, or online chat to discuss your project requirements.
    • Professional Expertise (2)

      Provide Design Files

      Send us your PCB design files (Gerber, BOM, etc.) for a detailed quote.
    • Cost-Effective Solutions

      Get a Quote

      We will provide you with a comprehensive quote, outlining all costs and timelines.
    • Delivery

      Production and Delivery

      Once the quote is approved, our team will begin production, ensuring your PCB assembly is completed on time and to the highest quality standards.

    Make an free consultant

    Whether you need PCB Fabrication or PCBA Assembly Service, STHL delivers innovation and reliability.

    Your Name*

    Phone Number

    Country

    Remarks*

    reset