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Description
CMU TPA3116D2 100W AMPLIFIERTPA3116D2 Low Frequency Subhoofer Amplifier 100W, 8 25VDC. Impedance 8 OHM Low Frequency Subhoofer Amplifier Overview The TPA3116D2 100W Digital amplifier board can be used as a subwoofer power amplifier board, with the NE5532 buffer matching of the front stage op amp. Specifications Amplifier chip: TPA3116D2 PCB size: 75X60MM Output power: 100W Impedance: 8ohm The power connector is a standard 5. 5MM power jack, which is the same as most laptop power
TPA3116D2 Low Frequency Subhoofer Amplifier 100W, 8-25VDC. Impedance 8 OHM
Low Frequency Subhoofer Amplifier
Overview
The TPA3116D2 100W Digital amplifier board can be used as a subwoofer power amplifier board, with the NE5532 buffer matching of the front-stage op amp.
Specifications
- Amplifier chip: TPA3116D2
- PCB size: 75X60MM
- Output power: 100W
- Impedance: 8ohm
-
The power connector is a standard 5.5MM power jack, which is the same as most laptop power supplies.
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Power supply range: DC8-25V
Note:
- The power supply of the board is very important. The higher the voltage, the higher the current, and the greater the output power. If you only have 12V 1A, you can use a 3-4 inch speaker. If you are above 19V 5A, you can use a 8-10 inch speaker
- Normal operation is to connect the external power supply and the power connector of the digital power amplifier first, and then connect the 220V power cord of the external power supply to the mains socket.
Additional Information
| Device | Amplifier |
| Type | Low Frequency | Subhoofer |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious.
To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware.
I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026