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| SKU | eqf6729 |
| Model Number | ZK-AS21 |
| Brand | MakerHawk |
| Channel Configuration | 2.1 Channel (Left, Right, Subwoofer) |
| Bluetooth Version | 5.1 |
| Adaptive Power Supply | DC 12-38V, ≥10A |
| Output Power (R&L Channel) | ≤220W each |
| Output Power (Subwoofer) | ≤350W |
| Total Output Power | 790W |
| Voltage Gain | 30dB |
| Dimensions | 141 x 131 x 27 mm |
| Audio Input Methods | Bluetooth, AUX, USB Flash Drive, USB Sound Card |
| Chip Solution | TPA3251D2 |
| Adaptive Speaker Impedance (L&R) | 3-8Ω |
| Adaptive Speaker Impedance (Subwoofer) | 2-8Ω |
| Protection Mechanisms | Reverse connection, undervoltage, overheating, overcurrent, short circuit (automatic recovery) |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers |
This item:
MakerHawk ZK-AS21 Bluetooth 5.1 Power Amplifier Board 2.1 Channel 790W | Hi-Fi Stereo Digital Audio Module with AUX/USB
8,129
This item
MakerHawk ZK-AS21 Bluetooth 5.1 Power Amplifier Board 2.1 Channel 790W | Hi-Fi Stereo Digital Audio Module with AUX/USB
8,129
Total price:
19,333
You save 9,591 (33%) Extra3 items selected
3 items
19,333You save 9,591 (33%) Extra
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Unleash 790W Hi-Fi Power for Your Custom Audio
The MakerHawk ZK-AS21 is a powerful 2.1 channel Class D amplifier board designed for Hi-Fi audio enthusiasts. It offers versatile input options including Bluetooth 5.1, AUX, USB flash drive, and USB sound card, allowing seamless integration with various devices like PCs, TVs, and smartphones. This module utilizes two Texas Instruments TPA3251D2 chips, ensuring high efficiency and true high-end sound quality with minimal distortion across the audio spectrum.
With a robust output of 2x220W for the left and right channels and 350W for the subwoofer, the ZK-AS21 can drive speakers ranging from 3-8Ω for stereo channels and 2-8Ω for the subwoofer. Its adaptive power supply requirement of DC 12-38V (minimum 10A) provides flexibility for different setups. The board also features advanced APP control for modifying Bluetooth name/password, adjusting volume, and setting timed shutdowns, along with 10 natural sleep songs.
Safety is paramount with built-in protections against reverse connection, undervoltage, overheating, overcurrent, and short circuits, all with automatic recovery. This ensures reliable performance and longevity for your custom audio projects. Imported from authorized US retailers, all customs duties and GST are included in the listed price. Delivery is handled via ExpressBox tracked shipping, with estimated arrival within 15-17 days.
Uncompromising Audio Purity
Experience true high-end sound quality with the TPA3251D2 Class D amplifier chips. This board minimizes distortion, delivering crystal-clear audio for music and movies. Unlike basic amplifiers, it offers advanced Bluetooth 5.1 with APP control for personalized settings and seamless device integration. Imported from authorized US retailers, this module ensures superior build quality and performance for your custom audio builds.
Ideal for DIY Enthusiasts
This amplifier board is perfect for hobbyists building custom speaker systems or upgrading existing audio setups. It's best suited for users comfortable with DC power connections and speaker wiring. Those seeking plug-and-play home theater receivers or integrated amplifiers with multiple HDMI inputs might find this module too specialized. Ensure you have a suitable 12-38V DC power supply (≥10A) and appropriate speaker impedance matching for optimal performance.
Typical situations where MakerHawk ZK-AS21 Bluetooth 5.1 Power Amplifier Board 2.1 Channel 790W | Hi-Fi Stereo Digital Audio Module with AUX/USB helps — illustrative scenarios, not customer reviews.
Building a custom 2.1 home audio system for a medium-sized living room in Delhi, needing clear stereo sound and a strong subwoofer.
The MakerHawk ZK-AS21 provides 790W total power, ideal for driving 3-8Ω speakers. Its Bluetooth 5.1 and AUX inputs allow easy connection to a TV or phone. The dedicated 350W subwoofer output ensures deep bass, enhancing movie watching and music listening experiences.
Upgrading a desktop PC's audio setup with a powerful, compact amplifier board that supports wireless streaming and has advanced control features.
This amplifier board's compact size (141x131x27mm) fits easily on a desk. Bluetooth 5.1 and USB sound card input offer flexible connectivity. APP control allows customization, while the 2.1 channel output with 790W total power significantly boosts audio quality for gaming and media.
| Power Supply Requirement | DC 12-38V, minimum 10A recommended |
| Speaker Compatibility | Left/Right Channels: 3-8Ω; Subwoofer: 2-8Ω |
| Cost per use | N/A for electronic components |
| Shelf life after opening | N/A for electronic components |
| Reapplication math | N/A for electronic components |
| Contraindications | Requires external DC power supply (12-38V, ≥10A) and speaker wiring. Not a standalone plug-and-play unit. |
| Allergens / common irritants | N/A |
| Feature | MakerHawk ZK-AS21 Bluetooth | Others |
|---|---|---|
| Power Output | 790W Total (2x220W Stereo + 350W Subwoofer) | Local boards typically offer 100-300W total, often with less dedicated subwoofer power, at ₹2,000-₹6,000. |
| Bluetooth Version | Bluetooth 5.1 with APP control | Most local boards use Bluetooth 4.0-5.0, lacking advanced APP control features. |
| Amplifier Chipset | Texas Instruments TPA3251D2 (Class D) | Often use generic or older Class D chips, potentially with lower efficiency and higher distortion. |
| Input Versatility | Bluetooth 5.1, AUX, USB Flash Drive, USB Sound Card | Typically limited to AUX and basic Bluetooth; USB functionality is less common or basic. |
| Safety Protections | Comprehensive (overheat, overcurrent, short circuit, undervoltage, reverse connection) | Basic protections may be present, but advanced features like automatic recovery are less common. |
About MakerHawk
MakerHawk specializes in high-performance electronic modules and components, focusing on audio amplification and digital signal processing for DIY enthusiasts and professionals.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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| Attributes | Current |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price |
5,383 7,617 |
5,821 9,510 |
3,758 3,935 |
1,628 2,293 |
4,603 9,395 |
2,782 2,945 |
| Rating | 4.30(104) | 4.20(1,773) | 4.80(1,970) | 4.70(75) | 4.88(8) | 4.80(6,191) | 4.20(3,181) |
| Brand Name | MakerHawk | Douk Audio | Riverstone Audio | Yoqanr | Sharpie | Post-it | CMTECK |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |