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Description
ZK-502C HIFI Wireless Bluetooth 5.0 TPA3116 Digital Power Audio Amplifier Board 50W X 2 Stereo AMP Amplificador, ZK-502C With Shell, ZK-502C Without Shell1. Chip solution: TPA3116D2 (with AM interference suppression function) 2. With or without filter: Yes (the sound is more mellow and clear after filtering) 3. Adapted supply voltage: 5~27V 4. Adapted speakers: 30W~200W, 4ohms, 8ohms 5. Number of channels: left and right dual channels (stereo) 6. Bluetooth version: 5. 0 7. Bluetooth transmission distance: 15 meters (unobstructed) 8. Protection mechanism: overvoltage, undervoltage, overheating, DC
1. Chip solution: TPA3116D2 (with AM interference suppression function)
2. With or without filter: Yes (the sound is more mellow and clear after filtering)
3. Adapted supply voltage: 5~27V
4. Adapted speakers: 30W~200W, 4ohms, 8ohms
5. Number of channels: left and right dual channels (stereo)
6. Bluetooth version: 5.0
7. Bluetooth transmission distance: 15 meters (unobstructed)
8. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection
9. Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the greater the ohms of the speaker, the lower the relative sound power, please pay attention!
10. Power supply voltage:
-12V ------ 8 ohm speaker/12W (left channel) + 12W (right channel), 4 ohm speaker/20W+ 20W
-15V ------ 8 ohms/18+ 18W, 4 ohms/more than 30 + 30W
-19V ------ 8 ohms/32 + 32W, 4 ohms/more than 45 + 45W
-24V ------ 8 ohms/38 + 38W, 4 ohms/more than 55 + 55W
Specification:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.3 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Great addition to my home.
Color: Brown, Number Of Shelves: 8, Size: 16in
This 8-piece set of floating shelves from RICHER HOUSE is a fantastic way to add both style and extra storage. The design is sleek and minimalist, giving the illusion that the shelves are floating. The set comes in a variety of sizes, which is great for creating a custom arrangement. The quality is good; the boards are sturdy and the included hardware feels solid. The biggest challenge is the installation. It can be a little tricky to get them perfectly level and flush with the wall, but once they're up, they feel secure. For the value for money, you get a lot of shelves for the price, making them a great option for a budget-friendly home decor refresh.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2025
★★★★★ 5
Perfect for collectors
Color: White, Number Of Shelves: 5, Size: 16in, Color: White, Number Of Shelves: 5, Size: 16in
Perfect for displaying Pokemon and other sports card products.
Holds ETBs and booster packs.
Includes stronger knockoff anchors, though I I didn't even use them since the stuff I placed on top is light weight.
Shelfs are made of MDF with a nice durable melamine finish. Keep in mind due to its width it does not have 16" OC holes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Will buy again
Color: Walnut, Size: 2 Pack
Great color, hardwear was easy to install, quality great, very stable, all in great fit great size and love the look
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
Good product at a reasonable price.
Color: Grey, Size: 2 Pack
The shelves were easy to install, are sturdy and look good.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Highly recommend these shelves
Color: Black, Size: 2 Pack
Love these shelves! Easy to put up, stylish, well made and mounting hardware feels secure. Love the fine details of the included screws and anchors and small tabs to cover screws underneath.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
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