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  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
  • CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module
CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module

CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module

  • 500 - 4999 Sets
    $6.50
  • 5000 - 9999 Sets
    $6
  • >= 10000 Sets
    $5.50

Customization:

Customized packaging（Min.Order: 2000 pieces）
Customized logo（Min.Order: 2000 pieces）
Graphic customization（Min.Order: 2000 pieces）
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CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Power Audio Amplification: Delivers 70W x 2 stereo output via dual channels, designed for clear, distortion-free audio reproduction in demanding applications.
  • Class D Efficiency: Utilizes energy-efficient Class D output circuitry to minimize power loss and heat generation, ideal for prolonged use.

Key features

  • 1. Robust Heat Dissipation with Advanced Material Technology

    • With a large central heatsink and high-quality capacitors/resistors, ensure efficient thermal management and stable operation under high-power loads. This design extends component longevity and maintains performance in demanding scenarios.

  • 2. Customizable Interactive Design for Tailored Performance

    • With three adjustable potentiometers and modular connectors, customize volume, gain, and signal routing to suit specific audio setups. This flexibility supports both DIY projects and professional applications.

  • 3. High-Power Output in a Compact Form Factor

    • With a Class D amplifier delivering 70W x 2 in a mini design, achieve powerful audio performance while saving space (~40% smaller than traditional analog amplifiers*). Ideal for home theaters or portable systems requiring high efficiency.

  • 4. Versatile Scenario Solutions for Diverse Applications

    • Designed for scenarios requiring continuous operation (e.g., commercial sound systems) or home use, balance power output and energy efficiency. The external power supply compatibility enhances adaptability to different power sources.

  • 5. Certified Reliability and Compliance

    • With FCC certification, ensure compliance with safety and electromagnetic interference standards, guaranteeing reliable performance in regulated environments.

Product details

CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB Circuit Board Class D 70W X 2 High Power Amplifier Module

The CS8685H Dual Channel Pure Digital Audio Stereo Amplifier PCB is a high-performance, miniaturized Class D amplifier module designed for demanding audio applications. With a 70W x 2 output and advanced thermal management, it delivers powerful, clear sound while maintaining energy efficiency. Its modular design and FCC certification ensure flexibility and compliance for a wide range of audio systems.

Technical specifications

FeatureSpecificationBenefit
Output Power70W x 2 (Dual Channel)Drives high-demand audio systems like speakers and amplifiers
Output CircuitryClass D (Digital)90% efficiency, reduced heat generation
DesignMiniaturized form factorCompact integration into portable devices
CertificationFCCEnsures regulatory compliance for global use
Thermal ManagementIntegrated heatsinkMaintains performance under heavy loads
Audio TypeStereo amplifierSupports balanced dual-channel audio output
Adjustability3 potentiometers (volume/gain control)Customizable audio parameters for precision

Customization guide

Adjustable potentiometers allow users to fine-tune volume, gain, or frequency response to meet specific audio requirements. Modular connectors enable easy integration with external components, making it adaptable for custom audio setups.

Get inspired

With its 70W x 2 output and Class D efficiency, this amplifier is ideal for high-fidelity audio systems. The mini design and heatsink ensure it can be deployed in compact spaces while handling intense power demands. Whether for home theaters, portable PA systems, or professional audio equipment, this module delivers clarity and reliability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Power Output50W x 260W x 270W x 2
Efficiency85%88%90%
Thermal SolutionPassive coolingMini heatsinkLarge heatsink
SizeStandardCompactMiniature
CertificationFCCFCC + RoHSFCC + RoHS + CE

Supplier's note

  1. Technical Breakthroughs:

    • Class D Output: Achieves 90% efficiency, 20% higher than traditional Class AB amplifiers, reducing energy waste.
    • Integrated Heatsink: Enables 20% higher power output than similar-sized amplifiers without overheating.
    • Mini Design: Compact form factor (half the size of standard amplifiers) simplifies integration into portable devices.

  2. Optimal Version Selection:

    • Base Model: Ideal for basic audio setups (e.g., home stereos) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for mid-tier applications (e.g., small PA systems) requiring enhanced durability and certifications.
    • Pro Model: Best for professional scenarios (e.g., live sound systems) demanding peak power and thermal stability. With its triple-certified compliance, it ensures global deployment readiness.

With the Pro Model’s 70W x 2 output and robust thermal management, users can handle high-power audio demands without compromise. Pair its mini design with modular connectors to create custom solutions tailored to specific project needs.

Frequently asked questions

  • Which high power stereo amplifier PCB is best for home theater systems?

  • How do I maintain the heatsink on the CS8685H amplifier PCB?

  • Can the CS8685H mini amplifier PCB be customized for DIY projects?

  • Is the CS8685H amplifier PCB FCC-certified for commercial use?

  • What makes the CS8685H Class D amplifier more efficient than traditional amps?

  • Does the CS8685H support multiple power sources?

  • Which amplifier module suits portable PA systems with high wattage?

  • How does the CS8685H handle heat in high-power applications?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Power OutputHome Theater, Live Sound SystemsIndustry: 50W x 2 (Standard for mid-range amps)
Our Base: 70W x 2 (▲14W, Class D efficiency)
Our Advanced: 100W x 2 (▲▲30W, supports subwoofers)		▲14W boost drives larger speaker arrays; ▲▲30W leap powers high-output systemsHigher wattage requires robust cooling systems (e.g., heatsinks or fans)
EfficiencyEnergy-Sensitive InstallationsIndustry: 80% (Class AB)
Our Base: 92% (▲12%, Class D reduces heat)
Our Advanced: 95% (▲▲3%, advanced thermal management)		Reduces energy use by 15% vs. Industry; minimizes heat buildupAdvanced efficiency tech increases upfront cost
Size/DesignPortable PA Systems, Compact InstallationsIndustry: 150x100mm (Bulkier form factor)
Our Base: 120x80mm (▲20% smaller, mini design)
Our Advanced: 100x60mm (▲▲33% smaller, ultra-compact)		Fits into tight spaces (e.g., stage monitors); lightweight for transportSmaller sizes may limit expansion ports or cooling capacity
CertificationsGlobal DeploymentsIndustry: FCC
Our Base: FCC + CE (▲EU compliance)
Our Advanced: FCC + CE + RoHS (▲▲environmental standards)		Meets EU and US regulations; expands market reachCertification costs increase pricing tiers
Heat DissipationIndustrial/High-Usage EnvironmentsIndustry: No heatsink (risk of thermal shutdown)
Our Base: Passive heatsink (▲prevents overheating)
Our Advanced: Active cooling (▲▲continuous high-power use)		Reliable operation in prolonged use; prevents performance degradationAdds weight/cost (e.g., fans or liquid cooling in Advanced)
CustomizationDIY Audio Projects, Tailored SystemsIndustry: Fixed settings
Our Base: 3 potentiometers (▲adjustable volume/gain)
Our Advanced: 5 potentiometers + software control (▲▲frequency EQ tuning)		Tailor performance to specific needs (e.g., bass boost)Requires technical skill to optimize settings

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