ZK-AS21 TPA3255 Bluetooth 5.1 Power Amplifier Board HiFi 2.1 Channel 220Wx2+350W Digital Audio Receiver AMP Board with Treble and Bass Control for DIY Speakers
US$66.58
Estimated delivery: 2–7 business days ✓ Free shipping — over $200Description
Product Details Mounting Type:Through-Hole Mount Included Components:Amplifier Board Number of Items:1 Warranty Description:No warranty Maximum Supply Voltage:38 volts_of_direct_current Mini...
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Free shipping $200+
Orders of $200 or more ship free. No code needed.
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Product Details
- Mounting Type:Through-Hole Mount
- Included Components:Amplifier Board
- Number of Items:1
- Warranty Description:No warranty
- Maximum Supply Voltage:38 volts_of_direct_current
- Minimum Supply Voltage:16 volts_of_direct_current
- Number of Channels:3
- Output Power:350 watts
- Package Type Name:Protective Shell
- Supply Current:10 A
- Maximum Output Power:350 watts
- Specification Met:Basic Safety Standards
- Model:ZK-AS21
- Number of Packs:1
About this item
- HI-FI & StereoHigh-quality 2.1-channel 220W+220W+350W Bluetooth 5.1 amplifier board, with multiple audio input methods such as AUX, Bluetooth, U disk, and USB sound card, allowing you to enjoy the fun of music anytime, anywhere.
- Function upgradeSupports APP control, and can modify Bluetooth name and password settings. The 5.1 Bluetooth version has settings such as adjustable volume, sound on/off, and timed shutdown. Comes with 10 natural sleep songs and up to 1023 sound combinations. Not only can you display the playlist of the U disk, you can also shake the phone to change songs or use the dial/mode key to switch songs.
- Professional chipUsing 2 Texas Instruments TPA3255 chips, it is a high-performance Class D amplifier with Class D efficiency, which can bring true high-end sound quality. The device adopts advanced integrated feedback design and proprietary high-speed gate driver error correction technology. This technology enables the device to maintain ultra-low distortion across the entire audio band while providing high-definition sound quality.
- Super Compatibility 5.1 Bluetooth version, with higher transmission efficiency, more stability and longer transmission distance. In open space, the wireless range can reach 15 meters (49 feet). It can be widely used in various devices such as tablets, PCs, TVs, smartphones, laptops, etc.
- Safety Protection The amplifier board has short circuit, overcurrent, overheating and anti-static protection to prevent complete failure. When overloaded, the device will report the fault to the processor to protect itself from damage.
Shipping Policy
Kitemere ships from the United States.
Most orders leave the warehouse within 1 business day and arrive in 2–7 business days.
- Free shipping on orders of $200 or more, applied automatically
- Otherwise shipping is a flat $6.90
- Your tracking number is emailed as soon as your order ships
- We currently ship to the lower 48 United States
Return policy
30-day returns.
If it's not quite right, you can request a return within 30 days of delivery, and Kitemere will email you return instructions. Change-of-mind returns must be unused, unassembled, and in their original packaging. There is no restocking fee. Depending on the item's packaged size and weight and how it needs to be collected, a change-of-mind return may have a return shipping or pickup cost. We only deduct the actual cost: we tell you the exact amount and get your OK before arranging a paid return, and if there is no cost, nothing is deducted. Returns for damaged, defective, or incorrect items are free.
How it works
- Email us at support@kitemere.com with your order number.
- We send your return instructions within 1 business day, along with any return shipping cost so you can decide.
- Your refund goes back to your original payment method within 10 business days of the carrier scan.
Damaged or defective on arrival? Send a photo and Kitemere replaces or refunds immediately, return shipping on us, and in most cases you won't need to send anything back.