TPA3116D2 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 50WX2+100W TREBLE Bass note tuning AMP ZK-TB21 – Musicianbuds
TPA3116D2 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 50WX2+100W TREBLE Bass note tuning AMP ZK-TB21
(87 customer reviews)


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TPA3116D2 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 50WX2+100W TREBLE Bass note tuning AMP ZK-TB21 7
TPA3116D2 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 50WX2+100W TREBLE Bass note tuning AMP ZK-TB21 8
SKU L1W9G872IYAN Category


We will ship the order to you within 24 hours after we received your payment and will also send you an email confirmation with the tracking number.

Yes. We a global company and send it to all over the world with free shipping, however if the location is Africa countries it may taken over 30-45days

Yes. You can track your order with the tracking number on our website and we will also notify you by email of the whole process of shipping tracking.

We ensure you that we will send the order to you immediately which will shorten your waiting time.

Yes. We offer refundable or return service within 30-days

The total price of the order includes all taxes. You do not have to pay any taxes.

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Of course. Musician Buds has been making and selling headphones for many years. It is a mature company, with a strong research and development team of hundreds of developing engineers , from production to sales. We have a large professional factory to produce all kinds of earphones, therefore we can achieve high quality at low prices!

Unit Price:

PA50 50W*2+100W AUX Bluetooth 5.0 = $28
TPA3116 50W*2+100W AUX Bluetooth 5.0 = $32

Product Presentation:

There are two versions of this product. The main difference lies in the difference of the amplifier chip used, the difference of the output filter or not, the difference of the size.
TB21 adopts imported TPA3116D2 and MT21 adopts domestic PA50

1.ZK-MT21 PA50 2.1

Bluetooth 5.0 PA50 2.1 50W*2+100W

Basic parameters:

1.Bluetooth version: 5.0 (without sunscreen, 10 meters)
2.Output channel: 2.1 channel
3.Chip model: PA50

1.Working mode: class D
2.Static current: 60mA
3.Work efficiency: 90%
4.Audio input: support bluetooth, AUX analog signal
5.MAX output power : 50W*2+100W
6.Frequency response: 20Hz to 20KHz
7.Working voltage: DC12V – 24V
8.Recommended power voltage: DC19V
9.Fit speaker parameters: 4-8 ohms
10.Size: 93 mm * 90mm * 22mm
11.Net weight: about 130g

2.ZK-TB21 TPA3116 2.1

Bluetooth 5.0 TPA3116 2.1 50W*2+100W

Product Feature:

This is a 2.1-channel power amplifier with 5.0 Bluetooth function (no blocking signal within 10 meters), subwoofer + stereo function, which can adjust the subwoofer frequency and volume separately.Separate adjustment of stereo channel treble frequency, bass frequency adjustment, volume control!

Basic parameters:

1.Bluetooth version: 5.0 (without sunscreen, 10 meters)
2.Output channel: 2.1 channel
3.Chip model: TP116D2*2

1.Working mode: class D
2.Static current: 60mA
3.Work efficiency: 90%
4.Audio input: support bluetooth, AUX analog signal
5.MAX output power : 50W*2+100W
6.Frequency response: 20Hz to 20KHz
7.Working voltage: DC12V – 24V
8.Recommended power voltage: DC19V
9.Fit speaker parameters: 4-8 ohms
10.Size: 120 mm * 100 mm * 20mm
11.Net weight: about 195g

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3 (2.1)

87 reviews for TPA3116D2 Bluetooth 5.0 2.1 Channel Power Audio Stereo Subwoofer Amplifier Board 50WX2+100W TREBLE Bass note tuning AMP ZK-TB21

  1. S***a

    The amplifier is excellent, the sound of clean bass is enough, connected to the power supply from the laptop.

  2. a***e

    Second purchase of this brand, very satisfied, installed and functional, it’s perfect. Thanks for the express shipping.

  3. A***a

    Very good I recommend

  4. S***g


  5. M***i

    Fast shipping. Product spisuje well.

  6. f***j

    Acheté seulement 15€, livraison en France en deux semaines. Les processeurs Texas Instruments sont plus modernes qu’annoncé. Il y a des TPA3126D2 beaucoup plus récents et de meilleure qualité. Le kit est assemblé facilement avec le tournevis fourni avec.

  7. F***e

    Very good sound, it connects via Bluetooth smoothly.

  8. r***r

    maravilhoso tudo certo envio , embalagem e conteúdo comprem sem sombra de dúvidas.

  9. A***n

    Great amplifier. Delivery zipper. The sound is gorgeous. Connected from the laptop power supply.

  10. D***v

    Excellent sound, but of course the power of the device is overstated. Fast delivery three weeks. Thanks to the seller, I recommend!

  11. K***s

    pagaidām viss ir ok

  12. D***k

    It came for 2 weeks, it works very well. I’m pleased.

  13. S***e

    Arrived very fast, well packed, product great… met expectations…

  14. V***h

    The sound is clear. Fed from 12 v 1.5am plays clearly on 20 watts of columns. But the power needs more than that, I’m waiting for the block to arrive. I’m happy with everything. Take it will not regret it. For the house is enough, everyone will dance. Frequency adjustment works well, but high on all seems to start pounding, not playing, but rather these are such columns.

  15. J***s

    140w speakers and 300w sub, sound very good. Small power adapters wont work, using laptops adapter.

  16. V***o

    12d delivery. Packing is good.

  17. V***v

    Installed TPA 3126, can work on a load of 2 ohms. Heat sink, by date from 70 cm2 per chip, if you DJ and voice rural discos. The seller and I recommend it. I recommend the seller and the product.

  18. S***v

    Packed perfectly, a box in a box, padded with foam. At first glance, excellent, we will test.

  19. A***v

    Excellent performance, everything works.

  20. P***a

    Good sound, treble, bass and freq knobs are working nicely. No pop sound when powering up, but quite big pop sound when loosing power. Nice short melody after power up (no chinese sound or chinese woman). Only problem was unbelievable huge tighten force on heatsink bolt. That worker which did that was really stupid. Circuit board was totally bended and almost cracked. Because of that whole force was made on chips edges and heat conductive paste had no contact. I dont understand how could chips survive this. Furtunately after paste replacement and gently secured heatsink, everything is working properly.

  21. J***j

  22. K***v

    Complete set, thank you to the seller!
    I’ll add how I check…

  23. N***v

    Packed perfectly, reached without damage, 3 packages in one

  24. S***h

    First “rustle” and “crackle” regulators HF and LF.
    Then they stopped.

  25. I***Y

    доставка до Алматы достаточно быстрая, товар соответствует описанию. намерен заказать ещё один. рекомендую.

  26. Y***n

    I am very pleased. delivery on time, packing is double box. works fine. surprised and pleased by the Chinese! I do not like digital equipment, but then she won! small sizes, characteristics and Price won! By the way, the background and Gula are not absolutely without the connected input. So apply good cables and good and loudspeaker. Many thanks to the manufacturer and seller!

  27. c***i

    Mi ha impressionato… Non credevo alle mie orecchie. Atomico. Alimentato a 24v.lo consiglio

  28. G***E

    Envoi rapide , bien emballé, le montage a l’air vraiment simple.
    je vais poster une autre évaluation après montage et test

  29. G***E

    Envoi rapide , bien emballé, le montage a l’air vraiment simple. je vais poster une autre évaluation après montage et test

  30. A***n

    Посылка пришла за 19 дней, в Вологодскую обл. усилок рабочий брать можно.

  31. AliExpress Shopper

    Получил, ещё не собирал. Но все минусы тпа3116 уже пощупал в другом готовом усилке. Доставка шустрая в почтомат. Магазин годный.

  32. A***a

    Fast delivery. Surprisingly good assembly quality! Includes screwdriver for DIY mounting. The sound quality and tone control options are also surprisingly good for this price. I’m happy listening to music from mobile gadgets via Bluetooth
    I recommend!

  33. I***v

    Blutus for some reason was not at first. And fire. For those who want sound more than from the usual car radio. Plays from 24 watts. Because From 12 W begins to play porridge above half the volume

  34. AliExpress Shopper

    looks great additional feedback after testing

  35. N***f

    A good amplifier, performs its functions. At 24 V is just a gun. Packed well. Delivery is fast enough recommend.

  36. J***a

    Prezado amigo, imaginei que o amplificador viesse com a fonte. Por favor verifique para mim se a fonte da foto abaixo, serve para o amplificador que comprei. Desde já agradeço.

  37. a***s

    Boa noite, chegou em perfeito estado gostei muito do produto!bem embalando.recomendo o vendedor.

  38. A***.

    Хороший усилитель, но то что два выхода на 50 ват, а один на 100 ват – в этом я пока не проверял, но преобразовывает звучание довольно та ки солидно – почти на простых динамиках. Товар был хорошо упакован – на фотографиях видно. Спасибо за запасной болтик – очень пригодится, если какой то потеряется. Все части легко собираются в общую конструкцию. Нравится и компактная-маленькая конструкция самого изделия

  39. R***s

    получил спасибо.

  40. A***y

    It’s fine. The goods are of excellent quality.
    Thank you to the seller for the fast delivery.

  41. J***z

    Fast shipping well packed good finishes works as indicated perfect!

  42. K***s

    Great stuff. Pleasant sound, soft bass, not phonite. Bluetooth works fine, there is no additional background. Relatively fast delivery. The parcel is not crumpled, not deformed.

  43. M***G

    So little, but powerfull. Feed 100rms sub and 2x 50w components, pull as a train without problems, sound quality good. Arrive to UK in about 10 days

  44. V***u

    Товар пришел, упакован хорошо, выглядит достойно. Ещё не проверял.

  45. G***r

    Hello, three weeks in Covida, very good.

  46. M***i

    Работает, качество на свой Class D. Bluetooth Codec SBC. При включении китайского голоса нету. Пришлось отмыть плату от флюса.

  47. g***a

    Все супер,очень быстро пришло около недели,играет отлично!

  48. A***n

    Corresponds to the description, in the work I will check and complement the review

  49. M***k

    Favorable price, I recommend supply voltage 24V-5A current for more power and dynamics

  50. S***r

    Plug & Play Loud Crispy worth it buying for little Giant
    Satisfied Bass & Surround response
    Did not expect that power adaptor is provided/ Good job! Waiting for the 5.1 version w/ same casing

  51. M***v

    Sent fast. It came quickly, too. I didn’t. Externally normal quality.

  52. AliExpress Shopper

    really good product. no pop if you switch on. enough power for living room. love it – thumbs up!

  53. 3***r

    Усилитель пришёл проверил работает но работает слабо даже очень за такие деньги должен мощнейший как описывали 12 вольт не работает подключил к18 в поёт но я заказывал в машину. Теперь куда его девать

  54. K***o

    Fast shipping and packed ok (but I have had no time to try and test this).

  55. v***v

    A little flux I’m trying to wash alcohol, the settings handles are spinning well, it’s very screaming it’s aesthetic, it’s necessary to update the paste under the radiator and, this second is The entire frame of the amplifier this iron heat outage will be 200%, grettering will be only 24V, xyp40w with 2 x 40w paged 250 + 250 + 180 + 180 + 200W home theater speakers in parallel connection I doubt that I have enough power.

  56. a***s

    Before Latvia arrived in a month, sound quality and zborki on vysata

  57. M***k

    amazing amplifier for the price, BT is working without problem, good sound, easy to install.

  58. M***v

    Excellent amplifier, very stylish design, the sound is perfectly cut over the frequencies, the power is grasped to tear the speakers. Produces a quiet sound when working, almost not noticeable.

  59. AliExpress Shopper

    Produto fidedigno com o anúncio. Bem embalado e chegou no prazo, fácil montagem e conexão com bluetooth . Já fiz testes, e o som é de boa qualidade, impressionante! Usei fonte de notebook que não usava mais e funcionou bem (veja a imagem)

  60. E***z

    Professional SELLER.
    I ordered two type of amplfiers. One had quality issue, the second item, two pireces of amplifiers sent back without delivery (by post) to .
    The seller realised it, communicated to me by messages the delivery problem, accepted my quality claime and sent again the 3 amplifiers properly.


  61. AliExpress Shopper

    The build quality is excellent. The bottom of the board was a little bit of flux residue.
    The food was supplied from the laptop BP 19 v 3.42 A. Speakers from the Music Center of Sony. SAB from slabenkogo 5.1 Samsung.
    Sound at altitude. Very deep frequency adjustment. Excellent adjustment of the volume of the sub. Unless-when you raise the HF at maximum-you can hear the sound of synchronization Bluetooth, but not critical.
    Plays quite qualitatively. In the connection above-he played 3-4 songs-the radiator is slightly warm.
    Recommended for purchase!

  62. D***v

    82 дня до Казахстана. Качество норм. маловато басов в колонках и перебор средних, без саба звук не радует. С сабом более-менее. Получше музыкального центра средней цены. при воспроизведении от бт на малой громкости, если прислушатся, чуть слышно шипение, т.н. звук сала на сковороде, на ауксе такого эффекта нету. С подключением бт проблем нет. Сращу поменял термопасту. Запитал от бп от ноута 19в 4.74 а. При средней нагрузке около 50-55 процентов регулятора и подключенном 2.1 4 ома- потребляет примерно 1-1.2 а, не греется. При малой нагрузке – процентов 10-15 от положения регулятора громкости – около 0.1 а

  63. A***k

    Доставка быстрая, упаковка хорошая. Комплект полный. Всё работает, все как в описании. Качество хорошее, звук чистый. Входы/выходы рабочие, блютуз в наличии. Все отлично, рекомендую!

  64. T***a

    simplesmente fantástico
    o som é muito limpo e sem ruído

  65. T***a

    Simply fantastic
    The sound is very clean and without noise

  66. B***s

    Pequeno poderoso! Usando com 12v 10a é suficiente pra empurrar qualquer caixa de 100w + sub 200w

  67. E***e

    Well packed, fast shipping and the product fits the description. Good purchase.
    I recommend this seller.
    There’s no proof if it works.

  68. J***s

    I’m impressed I printed a 3D enclosure for it. Paired it up with 2 140w speakers and a sub and wow!

  69. D***n

    Fast delivery, beautiful sound, clean, no foreign noise, for this price-it’s a find, it works from the laptop BP 19 V 4A

  70. Ö***n

    I had previously owned tda7293 with the red pcb it has broke down. I have tested this amp and it’s awesome. I have ordered speakers for it. I turned down the plates im a minimalist

  71. AliExpress Shopper

    item arrived in working order and as listed. great store.

  72. S***y

    like disripted,not checked yet

  73. AliExpress Shopper

    There’s no riding,

  74. A***n

    Decent amp at this pricepoint, works quite well on 12v will try 24v soon

  75. v***c

    Super effort. I liked it. From 12 volt, 4 amp power supply, it works loud enough,. Does not heat at all. I think that with a higher voltage will work well.

  76. g***a

    producto testado mas de mes com fonte 12v no esquenta boa potença no fui taxado

  77. S***b

    Огонь,запилил к усилку две колонки на 20-х и 13-х динамиках,на канал сабвуфера кинул буфак на 100w из тачки-долбит так что посуда дрожит, доволен как удав ✌️.

  78. A***v

    Everything works. Packed well. The sound quality is quite decent. I liked that when you connect the Bluetooth, it simply produces an unobtrusive sound signal to uselk, and not an irritably hanging aunt or man.

  79. M***o

    Object beautiful all ok thank you

  80. M***i

    Plugged in. Toli to pick, then-whether I argue. Bluetooth connects, the diode lights up-there is no sound. Riddle.

  81. A***n

    The amplifier for its money is excellent and quite cute ….

  82. J***o

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  83. O***v

    I’m happy with the purchase, I took the version more expensive, everything works. In Bluetooth mode, delay sound from video half a second, but it’s not critical for me

  84. E***a

    Ordered in the evening, on the next day sent, the packing is good.
    Connected the amplifier to small columns and Sabu from the house. Cinema, quite a good sound, when connecting Bluetooth Baba does not scream, in general, satisfied.

  85. E***v

    A very good amplifier, its money is worth, there is only one nuance, when you play games on the phone and in the game there is almost total silence, why then the sound the sound

  86. F***a

    Met expectations. For use on television is need buy a adapter, coz the televisions newest has auxiliary output.

  87. V***v

    It is very good! Excellent! The seller quickly sends the order, packs it well. It’s nice to deal with him. I recommend this seller! The item matches the description and appearance. I am fully satisfied with the item and the seller’s work. Excellent!

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