DS4093 1200W(600w + 600w ) HiFi Digital Stereo Amplifier Board

Key Features

• DS4093 / Gold-B047 amplifier platform

• HiFi Class-D digital amplifier architecture

• 2.0-channel stereo configuration

• 600W × 2 maximum claimed output

• 1200W combined maximum claimed rating

• Wide 12V–80V DC input range

• Separate left and right audio outputs

• Large aluminium heat sink

• Active cooling fan

• High-current terminal connections

• High-efficiency amplifier design

• Designed for high-power audio applications

• Suitable for custom HiFi amplifier builds

• Suitable for home and professional audio projects

Technical Specifications

Amplifier

Power

Cooling

Connections

Understanding the 600W × 2 Rating

The 600W × 2 specification is a maximum claimed output rating.

It should not be interpreted as 600W continuous output per channel under every supply and speaker configuration.

Actual obtainable audio power depends on:

• DC supply voltage

• Available supply current

• Speaker impedance

• Speaker load characteristics

• Audio input level

• Amplifier efficiency

• Thermal conditions

• Wiring losses

• Protection/operating limits of the board

A high-power amplifier cannot produce its maximum rated output unless the complete power and speaker system is appropriately designed.

Specifications Not Currently Verified

The current RoboGears source does not specify:

• Amplifier IC model

• Speaker impedance range

• THD

• Signal-to-noise ratio

• Frequency response

• Bluetooth connectivity

• Board dimensions

• Recommended maximum continuous output

• Recommended power-supply current

These specifications should not be added until verified for the exact DS4093 / Gold-B047 board.

Compatibility

Power Supply Compatibility

The DS4093 is specified for:

12V–80V DC

Use a high-quality regulated DC power supply capable of supplying the voltage and current required by your intended output level.

Never exceed 80V DC.

Do not select a power supply solely from the advertised 1200W rating. The supply must be correctly matched to the amplifier, speakers and intended operating level.

Speaker Compatibility

The current RoboGears specification does not publish a verified speaker-impedance range for this exact DS4093 / Gold-B047 board.

Before connecting a high-power speaker load, verify the appropriate impedance requirement for the exact board version.

The speakers should also have suitable power-handling capability for the intended amplifier output.

Audio System Requirements

For a complete system, you will generally require:

• External regulated DC power supply

• Left speaker

• Right speaker

• Compatible audio input source

• Audio input wiring/cable

• Speaker wiring

• Suitable enclosure

• Adequate ventilation

Before Purchase

1. Confirm Your Power Supply

The board requires an external DC supply within its specified:

12V–80V DC range

2. Confirm Your Speakers

Verify the correct speaker impedance and adequate power handling before connecting high-power speakers.

3. Plan Cooling

The amplifier already includes:

• Large aluminium heat sink

• Active cooling fan

Your enclosure must still allow sufficient airflow.

4. Plan the Enclosure

Do not mount the amplifier where:

• Cooling airflow is blocked

• Conductive objects can contact the PCB

• Speaker wires can short

• High-current terminals are exposed

• Excessive dust or moisture can enter

Applications

• DIY HiFi stereo amplifiers

• High-power stereo amplifier projects

• Home audio systems

• Home theater amplifier projects

• Professional speaker projects

• PA audio projects

• Floor-standing speaker systems

• Bookshelf speaker systems

• Custom audio amplifiers

• Audio laboratory projects

• High-power Class-D amplifier experiments

• Custom speaker cabinets

• Workshop audio systems

Suitable For

• Advanced DIY audio builders

• Electronics hobbyists

• Audio technicians

• Speaker-system builders

• Engineering students

• Audio laboratories

• Custom amplifier manufacturers

• High-power audio projects

📦 What's Included

❌ What's Not Included

Unless specifically supplied as part of a separate bundle, the standard package does not include:

• External DC Power Supply

• SMPS

• Transformer / Rectifier Power Supply

• Speakers

• Subwoofer

• Audio Source

• Audio Input Cable

• Speaker Wires

• Volume / Tone Control Preamplifier

• Bluetooth Receiver

• Audio Decoder

• Enclosure / Cabinet

• AC Mains Wiring

• Power Switch

• Fuse / External Protection Hardware

• Additional Cooling Accessories

Important Purchase Note

This product is a high-power amplifier board/module, not a complete ready-to-use amplifier.

A complete audio system requires a correctly designed external DC power supply, compatible speakers, audio source, appropriate wiring and a safe enclosure.

Product Variation

PCB colour, component brands, capacitor appearance, connector style, fan design and component placement may vary slightly between manufacturing batches while maintaining the intended product functionality.

Getting Started

Because the DS4093 is a high-power amplifier board, carefully plan the complete audio system before applying power.

Step 1 — Inspect the Board

Before installation, identify:

• DC power input

• Left speaker output

• Right speaker output

• Audio input connection

• Large heat sink

• Cooling fan

• High-current terminals

Check for physical damage or loose components.

Step 2 — Determine Your Required Output Level

Do not begin by trying to operate the amplifier at its maximum advertised rating.

First determine:

• Speaker requirements

• Desired listening/output level

• Available DC supply

• Enclosure cooling

• Intended application

Step 3 — Select the Power Supply

The board is specified for:

12V–80V DC

Use a regulated DC supply appropriate for the intended amplifier configuration.

Never exceed the maximum specified input voltage.

The power supply should have sufficient current capacity for the intended output level.

Step 4 — Verify Speaker Compatibility

Before connecting speakers, verify:

• Correct speaker impedance for the exact board

• Adequate speaker power rating

• Correct left/right wiring

• No short circuits

Step 5 — Mount the Board

Install the amplifier securely inside a suitable enclosure.

Keep sufficient clearance around:

• Heat sink

• Cooling fan

• Power terminals

• Speaker terminals

Step 6 — Check the Cooling Fan

Ensure the fan:

• Rotates freely

• Is unobstructed

• Has sufficient airflow

• Is not blocked by wiring

Step 7 — Connect the Speakers

Connect the appropriate speaker to each stereo output.

Do not allow exposed speaker wires to touch each other.

Step 8 — Connect the Audio Source

Connect the compatible audio source to the board's audio input according to the actual PCB markings.

Keep the initial source level low.

Step 9 — Check Power Polarity

Before applying power, verify:

• Positive terminal

• Negative terminal

• Supply voltage

• Wiring security

• No accidental short circuit

Step 10 — Initial Low-Power Test

Power the amplifier and begin with a low audio level.

Confirm:

• Left channel operation

• Right channel operation

• Clean audio

• Cooling-fan operation

• No abnormal heating

• No abnormal smell or noise

Step 11 — Increase Output Gradually

Increase the audio level gradually while monitoring:

• Sound quality

• Amplifier temperature

• Fan operation

• Power-supply stability

• Speaker behaviour

Step 12 — Final Installation

After successful testing, secure all wiring and ensure the enclosure provides adequate airflow.

Basic System Layout

Audio Source → DS4093 → Left & Right Speakers

External 12V–80V DC Supply → DS4093

Important

The current product documentation does not specify one universal recommended supply voltage/current or speaker impedance.

Verify these requirements for your intended high-power configuration before attempting maximum-output operation.  

🔧 Prototyping and Engineering Tips from RoboGears

1. Treat 1200W as a Maximum Claimed Rating

The advertised rating is:

600W + 600W = 1200W Maximum

It does not mean the amplifier continuously delivers 1200W from every supply voltage.

Actual output depends on the complete electrical and thermal system.

2. Power Supply Design Is Critical

At high output levels, the amplifier requires substantial electrical power.

An inadequate supply may cause:

• Voltage drop

• Distortion

• Clipping

• Premature shutdown

• Reduced output

• Unstable operation

Use a properly engineered regulated DC supply.

3. Never Exceed 80V DC

The published operating range ends at:

80V DC

Exceeding the specified maximum voltage can damage the board.

Allow appropriate engineering margin rather than operating a power supply beyond the board's specification.

4. Verify Speaker Impedance Before High-Power Testing

The current product documentation does not provide a verified speaker-impedance range.

Do not assume that every low-impedance speaker configuration is safe simply because the amplifier has a high advertised wattage.

5. Keep the Cooling Fan Unobstructed

The active cooling system is an important part of the amplifier's thermal design.

Do not block the fan with:

• Enclosure walls

• Wiring

• Foam

• Acoustic damping material

• Decorative panels

6. Provide Enclosure Ventilation

A fan cannot cool effectively if hot air remains trapped inside a sealed enclosure.

Provide suitable intake and exhaust ventilation.

7. Use Appropriate High-Current Wiring

High-power audio systems can draw substantial current.

Use wiring, connectors and terminals appropriate for the expected electrical load.

Loose or undersized connections can create:

• Voltage drop

• Heating

• Instability

• Connector damage

8. Keep Signal and High-Current Wiring Separate

Route low-level audio input wiring away from:

• High-current DC wiring

• Speaker cables

• Switching power wiring

This can help reduce unwanted noise.

9. Use Proper Grounding

Poor grounding can contribute to:

• Hum

• Buzz

• Noise

• Ground-loop problems

Keep audio and power wiring organized.

10. Test at Low Power First

For a new build:

Visual Inspection → Power Check → Speaker Check → Cooling Check → Low-Volume Test → Gradual Increase

Do not begin testing at maximum output.

11. Never Short the Speaker Outputs

Prevent exposed speaker conductors from contacting:

• Each other

• Ground

• Chassis

• Other output terminals

12. Monitor Temperature

Even with active cooling, sustained high-power operation generates heat.

If the amplifier becomes abnormally hot:

• Reduce the output

• Check airflow

• Check the fan

• Verify speaker load

• Inspect the power configuration

⚠️ Troubleshooting

No Audio Output

Check:

• DC power supply

• Power polarity

• Audio input

• Speaker connections

• Source volume

• Speaker condition

Distortion at Higher Volume

Possible causes include:

• Insufficient power supply

• Supply voltage drop

• Amplifier clipping

• Excessive input level

• Speaker limitation

• Thermal stress

Amplifier Cuts Out at Higher Output

Investigate:

• Power-supply capacity

• Wiring

• Speaker load

• Thermal conditions

• Cooling-fan operation

Cooling Fan Does Not Run

Do not continue sustained high-power operation until the cooling system is checked.

One Channel Does Not Work

Swap/test the audio source and speaker carefully to determine whether the issue is:

• Input source

• Wiring

• Speaker

• Amplifier channel

Excessive Hum or Noise

Check:

• Grounding

• Audio source

• Cable routing

• Power-supply quality

• Input wiring

Engineering Principle

High-power audio requires the complete system to work together:

Power Supply + Amplifier + Speaker Load + Wiring + Cooling + Audio Signal

A high amplifier wattage rating alone does not guarantee high usable output or good sound quality.

FAQ

1. What is the DS4093?

The DS4093 / Gold-B047 is a high-power Class-D 2.0-channel stereo digital amplifier board.

2. What is its advertised output power?

The maximum claimed output is:

600W × 2

or a combined advertised maximum of:

1200W

Actual obtainable output depends on the complete system configuration.

3. Is this a stereo amplifier?

Yes.

It is a 2-channel stereo amplifier with:

• Left output

• Right output

4. Is this a 2.1-channel amplifier?

No.

The published specification identifies it as a 2-channel / 2.0 stereo amplifier.

There is no separately specified dedicated subwoofer channel.

5. What input voltage does it support?

The published operating range is:

12V–80V DC

6. Can I power it directly from 230V AC mains?

No.

The amplifier requires a suitable external DC power supply.

Do not connect AC mains directly to the amplifier board.

7. What power supply should I use?

Use a high-quality regulated DC supply within the specified 12V–80V range and with sufficient current capacity for your intended output.

The current product documentation does not specify one universal recommended voltage/current combination.

8. Does the package include the power supply?

No.

The standard package contains the amplifier board only.

9. Does it include speakers?

No.

Compatible speakers must be selected separately.

10. What speaker impedance does it support?

The current RoboGears specification does not publish a verified speaker-impedance range for this exact board.

Verify the appropriate speaker load before attempting high-power operation.

11. Does it have a cooling fan?

Yes.

The DS4093 uses a large aluminium heat sink with an active cooling fan.

12. Can I use it without the fan?

The fan is part of the board's published cooling system.

It should remain operational and unobstructed, particularly during sustained high-power operation.

13. Does it have Bluetooth?

Bluetooth is not specified on the current DS4093 product page.

Do not assume built-in Bluetooth unless your exact board version has verified Bluetooth hardware.

An appropriate external audio receiver can be used if wireless input is required.

14. Which amplifier IC does it use?

The current product documentation does not identify the amplifier IC.

The IC should be verified from the exact board before adding a chip model to the product specification.

15. Does 600W × 2 mean I will always get 1200W?

No.

It is the published maximum claimed rating.

Actual output depends on:

• Supply voltage

• Available supply current

• Speaker load

• Input signal

• Wiring

• Amplifier efficiency

• Thermal conditions

16. Can I use it for home audio?

Yes.

The product is intended for applications including HiFi stereo systems, home audio and DIY amplifier projects.

17. Can it be used for PA speakers?

The current listing includes professional PA systems among its intended applications.

The complete system still needs correctly matched speakers, power supply, cooling and wiring.

18. Can it be used with a subwoofer?

The current product page includes subwoofer systems among potential applications, but the DS4093 itself is specified as a 2.0 stereo amplifier, not a dedicated 2.1 amplifier.

A suitable crossover/filter and system configuration may therefore be required for a dedicated subwoofer application.

19. Is an enclosure included?

No enclosure is listed as included.

A suitable ventilated enclosure should be provided for a permanent build.

20. Is this suitable for beginners?

It can be used for DIY audio projects, but because of its wide voltage range and potentially high electrical power, users should understand DC power supplies, speaker matching, wiring, cooling and electrical safety before attempting high-power operation.

Important Safety Note

This is a high-power DIY amplifier module.

• Observe correct DC polarity.

• Never exceed the specified 80V DC maximum.

• Never connect AC mains directly to the amplifier board.

• Prevent speaker-output short circuits.

• Keep the cooling fan unobstructed.

• Use adequately rated wiring and connectors.

• Disconnect power before modifying connections.

Disclaimer

The 600W × 2 / 1200W figure is the manufacturer's/listing maximum claimed rating and should not be interpreted as guaranteed continuous RMS output under every operating condition.

Actual output depends on supply voltage, available current, speaker load, signal conditions, wiring and thermal management.

Product appearance, PCB layout and component placement may vary between manufacturing batches while maintaining the intended functionality.