2020 Newest Fosi Audio BT30D Bluetooth Sound Power Amplifier 2.1 Channel Bass & Treble Control Amp Audio Subwoofer 100W + 50W x2 – Musicianbuds
2020 Newest Fosi Audio BT30D Bluetooth Sound Power Amplifier 2.1 Channel Bass & Treble Control Amp Audio Subwoofer 100W + 50W x2
(34 customer reviews)


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2020 Newest Fosi Audio BT30D Bluetooth Sound Power Amplifier 2.1 Channel Bass & Treble Control Amp Audio Subwoofer 100W + 50W x2 7
SKU 8E5UTHAYX32M Category


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Fosi Audio BT30D Bluetooth 5.0 Stereo Amplifier 2.1 Channel Bass & Treble Control Integrated Amp Audio Subwoofer 50W x2 + 100W


  • The Bluetooth Stereo Amplifier adopt performance 2pcs texas instrumentTPA3116D2amp chip, 2pcsNE5532op amp chippest, Qualcomm QCC3003 Bluetooth 5.0 Module, dual channel max output power 50W x2 +100W to get clear audio sound, no pop, no audible noise, dead silent when nothing is playing through it.
  • Speakers full frequency output, By using custom treble bass knob and adjustable 40-300Hz cutoff frequency for subwoofer, you’ll be able to get the best sound!
  • Supports wireless playback from Bluetooth devices, Bluetooth 5.0 wireless music streaming technology with external antenna make a transmission distance of more than 15m/49ft
  • Full metallic shell to ensure high quality and durable, advanced circuitry design, built-in speakers protection circuit to ensure Hi-Fi clear and clean sound; With unrivaled sound for the customers who pursue HiFi sound!
  • Upgraded DC power outlet for safe use without sparks, included high quality 24V/4.5A power supply enough to drive most passive speakers and powered/passive subwoofer.


  • Model: BT30D
  • Chippest:TPA3116D2
  • Maxpower Output: 50W*2+100W
  • THD: 0.05%@output 1W; SNR ≥98dB
  • Working Voltage: 12-24V
  • Speakers Frequency Response: 20Hz-20kHz(±3dB)
  • Bass Cutoff Frequency Range Adjustment: 40-300Hz
  • Device Dimension: L118 x W132 x H35 mm/4.72 x 5.2 x 1.38inch
  • Input mode: Bluetooth/RCA
  • Output mode: Passive Speakers + Passive/Active Subwoofer
  • Bluetooth: Bluetooth 5.0, up to 15m/49ft wireless range without hindrance
  • Easy Connection
  • Bluetooth Network Name: FOSI AUDIO
  • Wireless Range: Up to 15m/49ft.
  • Works with All of Today’s Latest Bluetooth Devices(IOS, Android, Smartphone, Pad, Tablet etc.)

Package Include:

*1x BT30D Amplifier

*1x 24V 4.5A Power Supply

*1x User Manual



Brand Name

Fosi Audio





Maximum Power Per Channel


Model Number





3 (2.1)




Passive Speakers + Subwoofer


100W Passive Subwoofer + Active Subwoofer

Power Adapter


Max Output Power for Speakers

50W x2 + 100W


Bluetooth 2.1 CH Amplifier



Digital AMP Chip


34 reviews for 2020 Newest Fosi Audio BT30D Bluetooth Sound Power Amplifier 2.1 Channel Bass & Treble Control Amp Audio Subwoofer 100W + 50W x2

  1. A***s

    Muy bien empacada y llegó bastante rápido… Se ve de muy buen calidad. Recomiendo el vendedor.

  2. K***K

    아! 매우 만족합니다. 오디오 매니아로서 가격대비 성능비 지구 최강입니다. 3개째 주문해서 주변사람들에게 권하고 있습니다. 강력 추천합니다!!!

  3. T***g

    I received the product in 11 days and is working well. Quite satisfy with the sound quality.

  4. C***i

    1) Naked speaker wires are difficult to insert. Recommend banana plugs.
    2) Subwoofer input is not headphone mini jack 3.5mm type but LFE type !!!
    Now I am sorry for it for not looking at the product pictures carefully.

  5. A***a

    Very good quality in relation to its price. Of the few 2.1 amplifiers with unamplified signal output. The bluetooth receiver goes perfectly and without sound quality merma. Perfect for mid-range speakers.

  6. L***z

    I was surprised at the quality of the audio produced by this small amplifier. The bluetooth works perfectly. Happy with the purchase.

  7. M***n

    This little amp is great! Beats my Pioneer amp in music sound representation. Bluetooth supports AAC. Led is blue when bluetooth is active, red when rca is active and turns off then switching off the device which seems to have been a problem with other models but works fine with this one. Feels like a quality device, the buttons have a nice smooth weight feeling to them. Even the box breaths high quality.

  8. AliExpress Shopper

    First tests and impressions very well

  9. J***D

    Commandé le 28 décembre 2021 et reçu le 7 janvier 2021.
    Le matériel est petit et aisé à placer.
    Connecté à un woofer passif, les basses sont profondes, la fréquence du woofer est réglable.
    Excellent rendu sonore, pas de bruit de fond, pas de clac à la connection Bluetooth ni à la déconnection.
    Le Bluetooth est prioritaire sur l’entrée ligne RCA.
    Diode rouge en RCA, bleu en Bluetooth.
    Entièrement satisfait par le produit que je recommande, très bon vendeur.

  10. R***l

    working great with my other equipment. No delay in sounds and a great sound signature.

  11. E***C

    excellent produit, bien emballé

  12. S***y

    this was delivered quickly. the product constantly drops out on Bluetooth. I have no problems with any of my other devices !! the sound quality is excellent when directly sourced. Bluetooth is very poor ! DISAPPOINTING. powering 2 large floorstanders and pioneer passive sub. sound is excellent!

  13. P***v

    Отличный усилитель. Буквально оживил кучу стареньких колонок.

  14. D***A

    Very good sound. Good amplification for a room
    Up to 25m2. If subwoofer is added I guess q much better. I ‘ve tried it with woofer 3.5 speakers and the sound seems very correct to me. If in the future I amount a subwoofer I update my opinion.

  15. J***z

    Cumple de sobra con lo que se anuncia, aporta buen sonido y el bluetooth funciona muy bien. Una buena opción para rescatar unos buenos altavoces.

  16. A***z

    Increíble lo bien que suena por el precio que tiene , de momento lo estoy probando con unos dynavoice magic s4 y suena realmente bien , en unos días probare a añadir un subwoofer pasivo,

  17. I***v

    Доставили очень быстро через DPD, до квартиры.
    Работает отлично! В простое есть незначительный шум, если не подносить ухо к колонкам совсем неслышно, запитал две колонки Denon которые простаивали много лет, звук на высоте, линейный вход подключил с телевизора, звук нормальный насколько это возможно от цифровых каналов, жду смарт бокс, также откопал старый пассивный microlab сабвуфер, отрезал от него тюльпан и подключил к усилителю, басит очень приятно. Все стоит в спальне, оценка 5+. Рекомендую!

  18. M***s

    Good stuff, Fosi Audio is a well known brand for cheap but good quality audio devices.
    This amplifier uses the Qualcomm QCC3003 chip, which is way better than the ATS2819 that has dropout problems. No chinese voice when connecting / power on power off, which is nice. Adapter is C E (European Certified) as well, not the rip off “Chinese Export”-CE.
    Staff is friendly and helpfull!

  19. S***n

    все супер, дней 10 с Москвы до подъезда звучит не плохо, от динамиков зависит

  20. D***i

    Device works very well, no problem Radzi wearing with a 2x Jamo 55W 8ohm + subwoofer DIY Sony 100W 3ohm. Produces light noise at rest not audible distance of 2 meters, Bluetooth connection is working properly.
    The downside is no input optical and remote control.

  21. M***s

    excelente qualidade de som, sem ruidos, bluetoooth funciona perfeitamente assim como via cabos.

  22. R***r

    Очень быстрая доставка до двери. Усилитель – шикарен. Маленький, удобный, клевая кнопка включения) Взяли для колонок к телевизору, но если нужно, легко подключается к телефону.

  23. o***o

    Perfect Sound. Fast and powerful bluetooth connection.

  24. A***v

    Доставка быстрая, к внешнему виду претензий нет. В работе будет испробован позже.

  25. d***r

    The article is a wonder. It works properly and has power. I have it connected to the PC and I have been able to take advantage of speakers from an old Home Cinema that I had in disuse.

  26. S***r

    llego antes de tiempo, en buen estado y esta muy práctico, me gusto, gracias

  27. S***i

    Urządzenie BT30D dotarło do Anglii po dwóch tygodnia od złożenia zamówienia.
    Wygląda solidnie.
    A teraz trochę o urządzeniu BT30D:

    + gra znakomicie dźwięk jest lepszy od amp ONKYO A-9155 (o 70% bardziej przejrzysty)
    + napędza głośniki 2x 150W firmy KEF
    + aktywny sub PROSUB 600 firmy DEFINITIVE
    + bluetooth działa poprawnie
    + pokrętła działają poprawnie

    – urządzenie generuje białe szumy, które słychać jak urządzenie nie gra.

  28. A***Z

    All right. Received in 10 days

  29. V***s

    all good!

  30. AliExpress Shopper

    MAGNÍFICO. Amplificador 2.1 con doble salida de altavoz de sub graves, amplificada y no amplificada. Perfecto para aprovechar 2 cajas de 2 vías y una tercera de sub graves. He sacado de su interior 5V para alimentar un extractor HDMI ARC. De esta manera se conectan ambos aparatos a la vez, desconectando (el extractor) automáticamente los altavoces de la TV.

  31. A***a

    Покупала в подарок. Муж подарком остался доволен, все работает отлично. На Амазоне такой дороже на 30 фунтов. Доставка супер быстрая, около 10 дней.

  32. L***n

    Wow ,gut arbeiten, tolle Ton, schnelle Lieferung !

  33. P***t

    I’ll give my opinion☺About its quality, when you try it.

  34. S***v

    The sound is pleasant, the delivery is fast. If you turn out loud, the speakers start rushing. Background sound if nothing to play is not loud. Bluetooth works.

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