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Item #:
202455930
ZK-AS21P Bluetooth Amplifier Board - 300W+300W+600W Output, 18-50V DC Wide Voltage Input, Vehicle Amplifier ZK-AS21P
85% of respondents would recommend this to a friend
Item #:
202455930
BND 154
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from JP
In stock
Imported from Japan store
QTY:
Only 20 items left in stock.
Order now and get it around Monday, November 09
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The ZK-AS21P amplifier board features a 2.1-channel design, allowing you to connect two passive speakers and a subwoofer, delivering optimized audio performance for audiophiles.
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Note: Step Down Voltage Transformer required for using electronics products of JAPAN store (100 V). Recommended power converters Buy Now.
What Stands Out
Powerful Output
Delivers an impressive 300W per channel output, ensuring high-quality audio performance for any car sound system, providing an immersive listening experience.
Wide Voltage Range
Supports an input voltage of 18-50V DC, making it versatile for various applications, ensuring compatibility with different vehicle electrical systems.
User-Friendly Design
Equipped with an external potentiator for easy volume control, allowing users to adjust settings effortlessly while driving, enhancing user convenience and safety.
Product Details
| Voltage | 24 Volts (DC) |
| Maximum Supply Voltage | 50 Volts (DC) |
| Minimum Supply Voltage | 18 Volts |
| Mounting Type | Surface Mount |
| Number of Channels | 3 |
| Output Power | 1200 Watts |
| Supply Current | 10 Amps |
| Maximum Output Power | 1200 watts |
| Item Dimensions | 15 x 14 x 4 cm |
| Material Type | PCB |
| Manufacturer | Wuzhi Audio |
| Model | ZK-AS21P |
| Brand Name | Wuzhi Audio |
| Number of Items | 1 |
| Unit Count | 1.0 Count |
| UPC | 194852391567 |
| Included Components | Amplifier |
| Part Number | ZK-AS21P |
| Item dimensions L x W x H | 15 x 14 x 4 cm |
Who Should Buy?
-
Car Audio Enthusiasts
Ideal for users seeking to significantly enhance sound quality and power in their vehicle audio systems.
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DIY Audio Projects
Great for hobbyists who want to build custom audio solutions with adjustable features and Bluetooth connectivity.
-
Home Theater Systems
Perfect for integrating powerful bass and treble outputs into home audio setups for an immersive experience.
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Casual Listeners
May be too sophisticated and powerful for users who only want basic audio enhancement without complex features.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What power supply is required for the ZK-AS21P amplifier?
Answer: It requires an 18-50V DC power supply rated at 10A or higher for optimal performance. -
Question:
Can I connect Bluetooth devices directly to this amplifier?
Answer: Yes, it supports Bluetooth 5.1 for seamless wireless audio connection. -
Question:
What type of speakers can be used with this amplifier?
Answer: You can connect two passive speakers and a subwoofer, ensuring left/right channels have ≥4 ohms and subwoofer ≥2 ohms.
Wuzhi Audio Editorial Review
ZK-AS21P Bluetooth Amplifier Board - 300W+300W+600W Output, 18-50V DC Wide Voltage Input, Car Amplifier External Potentiator offers impressive power capabilities with a maximum output of 600 watts per channel, making it suitable for various audio needs. The board operates efficiently within an 18-50V DC input range, ensuring versatility for different setups. Users have praised its build quality and the clarity of sound output, delivering a powerful audio experience. Furthermore, it features a surface mount design which aids in easy installation. With such specifications, it's a solid choice for both car audio systems and home entertainment setups.
Customer Reviews & Ratings
6 customers ratings
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5 Star
78%
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4 Star
0%
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3 Star
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2 Star
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1 Star
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Pros
- Impressive 1200-watt output capacity
- Wide voltage input ranges from 18-50V
- Compact surface mount design for easy installation
- Clarity of sound output praised by users
- RoHS certification ensures environmental safety
Cons
- May require additional components for some setups
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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BND 154
Order now and get it around Monday, November 09
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 20 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Powerful output with 300W per channel and 600W subwoofer capacity.
- Supports Bluetooth 5.1, USB flash drives, and AUX input for versatile audio connections.
- Designed for DIY enthusiasts to easily build customized audio systems.
- Equipped with treble/bass adjustment knobs for personalized sound tuning.
- Includes advanced protection features and a cooling fan for reliability and performance.
- Ideal for achieving high-quality audio in both portable and home setups.
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