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Dual TPA3116D2

  • 50W*2(L/R) and 100W(SUB) higher power

Bluetooth 5.0

  • Stable & high-speed transmission speed

2.1 Channel

  • Support most home desktop / bookshelf / indoor passive speakers & passive subwoofers

Full Tone Cnotrol

  • Treble & Bass frequency control
  • Bass volume control
  • L/R CH volume control
  • Master volume control

Nobsound 2.1 Bluetooth Amp

Packing List

Notice: the case is packaged separately from amplifier board, you need to assemble the case with other accessories such as screws, shim, knobs etc.

  • 1*Finished Board + Case

Parameters

  • Bluetooth version: 5.0
  • Max output power: 100W(subwoofer)+50W*2(L/R)
  • Input sensitivity: 600-800mV
  • Frequency response: 20Hz-20KHz
  • Speaker impedance: 4-8Ω
  • Subwoofer impedance: 2-8Ω
  • Working voltage: DC 12-24V

  • Audio input: Bluetooth/3.5mm AUX/3 PIN
  • Audio output: raw cable speaker jacks + subwoofer jacks
  • Board Dimensions(L*W*H): 100*100*22mm / 3.94*3.94*0.87in
  • Net weight (Board): 180g / 0.40lb
  • Package weight(without case): 250g / 0.55lb
  • Package weight(with case): 320g / 0.71lb

Introduction

Nobsound TPA3116-2.1 Nobsound TPA3116-2.1 Nobsound TDA7498-2.0 Nobsound TPA3116-2.0 Nobsound TPA3116-SUB Nobsound TPA3116-MONO
Type Bluetooth Amplifier Board + Case Bluetooth Amplifier Board + Case Bluetooth Amplifier Board + Case Bluetooth Amplifier Board Digital Subwoofer Amplifier Digital Mono Amplifier
Max Power 50W x 2 + 100W SUB 50W x 2 + 100W SUB 100W x 2 100W x 2 100W 100W
Channel 2.1 2.1 2.0 2.0 1.0 1.0
Input Bluetooth 5.0 + 3.5mm AUX/3 PIN Bluetooth 5.0 + 3.5mm AUX Bluetooth 5.0 + 3.5mm AUX + TF Card Bluetooth 5.0 + RCA 3.5mm AUX 3.5mm AUX
Output Stereo Passive Speakers + Passive Subwoofer Stereo Passive Speakers + Passive Subwoofer Stereo Passive Speakers Stereo Passive Speakers Passive Subwoofer Mono Passive Speaker
Tone Control
THD ≤0.04% ≤0.04% ≤0.04% ≤0.04% ≤0.04% ≤0.04%
SNR ≥98dB ≥98dB ≥98dB ≥98dB ≥98dB ≥98dB
Speaker Impedance 4~8ohm 4~8ohm 4~8ohm 4~8ohm 2~8ohm 2~8ohm
Power Input DC 12-24V DC 12-24V DC 12-30V DC 12-25V DC 8-25V DC 8-25V
Little Bear T7 Nobsound NS-15G Douk Audio M1 PRO Nobsound NS-01G PRO Douk Audio SE Douk Audio X1
Type MM Phono Tube Preamplifier 2-CH Bluetooth 5.0 Power Amplifier (200W) 2 (2.1) CH Bluetooth 5.0 Power Amplifier (320W) 2-CH Bluetooth 5.0 Power Amplifier (100W) 2-CH Bluetooth 5.0 Power Amplifier (100W) Bluetooth 5.0 Tube MM Phono Amplifier (320W)

Features & details

Features

  • [Multiple audio inputs]: with Bluetooth 3.5mm AUX/3 PIN inputs, almost compatible with all home audio device such as phone, tablet, computer, CD player etc., also comvenient for you to DIY.
  • [Bluetooth 5.0 & Classic TPA3116 chip]: supporting Bluetooth 5.0 to realize stable & high-speed transmission speed. 2PCS TPA3116D2 chip, one for bass channel and one for left and right channel amplification. Max output power can reach 50W*2(L/R) and 100W(subwoofer), easily to drive most home desktop / bookshelf / indoor passive speakers.
  • [Powerful design & wide voltage]: with preamplification and bass frequency division processing, 5PCS potentiometer are used for bass volume/bass frequency/left & right channel volume/main volume & input switch. DC 12-24V voltage, can be powered by switching power supply or storage battery, for enjoying high-quality music on the road or outdoors.
  • [Perfect circuit & HiFi clear sound]: concise layout and reasonable wiring, no pop and audible noise even at high power output. The sound is very clear and smooth, the bass with shocking effects just like in the cinema, providing auditory feast.

Product information

Product Warranty: For warranty information about this product, please click here
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Customer Questions

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Q: What''s the switch for?

A: If you pull the switch toward the front of the board (the knobs), it''s clearly a high pass…

G. Larsen | 5 months ago

Q: Can you bridge this for mono output?

A: Hello. If you want mono bridge amp, please try these
https://www.amazon.com/dp/B07MR6YCQ1…

Seller DoukAudio | 1 month ago

Q: What size is dc filtering electrolytic capacitor? 4700uf or 6800uf? and is there any "pop"…

A: Mine has a 6800uf cap, 35v. I use this as a desktop amp for my PC - wired in and driving …

John Silvia | 6 months ago

Q: can I connect a dual subwoofer (2 ohm + 2 ohm)?

A: It says it can handle 2-8 ohms.

Patrick Clough | 6 months ago

Customer reviews

4.2 out of 54.2 out of 5
66 global ratings

Top reviews from the United States

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John Silvia
5.0 out of 5 starsVerified Purchase
Incredible for it''s size and sounds great too.
Reviewed in the United States on November 14, 2020
I have a pair of old car speakers that still sound great (4ohm 100w) - and a subwoofer (6" 3ohm) that was retired. This tiny amplifier with it''s 2.1 outputs fit the bill perfectly. Wiring it up was easy - direct leads connecting to the board. With a handy 24v power supply,... See more
I have a pair of old car speakers that still sound great (4ohm 100w) - and a subwoofer (6" 3ohm) that was retired. This tiny amplifier with it''s 2.1 outputs fit the bill perfectly. Wiring it up was easy - direct leads connecting to the board. With a handy 24v power supply, I powered this up easily and it really can pump.

When I first got it going - I turned the treble all the way up - and was surprised about how super-bright the sound was! I usually am left wanting, but this delivered so well I had to turn the treble down. I''ll be designing and printing a case for this little beasty.

If you''ve got an project that needs a good amp - stop looking and get this. No regrets.
I have a pair of old car speakers that still sound great (4ohm 100w) - and a subwoofer (6" 3ohm) that was retired. This tiny amplifier with it''s 2.1 outputs fit the bill perfectly. Wiring it up was easy - direct leads connecting to the board. With a handy 24v power supply, I powered this up easily and it really can pump.

When I first got it going - I turned the treble all the way up - and was surprised about how super-bright the sound was! I usually am left wanting, but this delivered so well I had to turn the treble down. I''ll be designing and printing a case for this little beasty.

If you''ve got an project that needs a good amp - stop looking and get this. No regrets.
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Jake Smith
5.0 out of 5 starsVerified Purchase
Fantastic!
Reviewed in the United States on April 30, 2021
Bought this to replace a giant old boombox/deck that was all busted up. The 2 speakers and subwoofer were still working perfectly. I grabbed this, slapped it together pretty easily and once hooked up i am JAMMING. Incredible how this tiny thing pushes my speakers n sub so... See more
Bought this to replace a giant old boombox/deck that was all busted up. The 2 speakers and subwoofer were still working perfectly. I grabbed this, slapped it together pretty easily and once hooked up i am JAMMING. Incredible how this tiny thing pushes my speakers n sub so well.

Buy this! My only complaint is switching between the BT mode and Line In. If u have the bluetooth connected it doesnt seem to let u switch. So just disconnect the BT from your device and you can switch back to Line In.

Will buy again if I need another!
Bought this to replace a giant old boombox/deck that was all busted up. The 2 speakers and subwoofer were still working perfectly. I grabbed this, slapped it together pretty easily and once hooked up i am JAMMING. Incredible how this tiny thing pushes my speakers n sub so well.

Buy this! My only complaint is switching between the BT mode and Line In. If u have the bluetooth connected it doesnt seem to let u switch. So just disconnect the BT from your device and you can switch back to Line In.

Will buy again if I need another!
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Dimitar
5.0 out of 5 starsVerified Purchase
I am happy
Reviewed in the United States on July 2, 2020
I''ve been using the amp to listen to music with Amazon Alexa for a week now. It satisfies me completely. It is very strong for a living room, so I turned it on at 12 volts. For good playback quality, use quality speakers. The equalizer control is perfect, it can meet... See more
I''ve been using the amp to listen to music with Amazon Alexa for a week now. It satisfies me completely. It is very strong for a living room, so I turned it on at 12 volts. For good playback quality, use quality speakers. The equalizer control is perfect, it can meet all requirements. In the morning, while the family is still asleep, I have to turn down the bass, but during the day it sounds perfect. I sincerely recommend it. Optimal option: price - quality.
I''ve been using the amp to listen to music with Amazon Alexa for a week now. It satisfies me completely. It is very strong for a living room, so I turned it on at 12 volts. For good playback quality, use quality speakers. The equalizer control is perfect, it can meet all requirements. In the morning, while the family is still asleep, I have to turn down the bass, but during the day it sounds perfect. I sincerely recommend it. Optimal option: price - quality.
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Johnny
1.0 out of 5 starsVerified Purchase
Had high hopes.
Reviewed in the United States on June 20, 2021
I’ve tried many board amps and I hoped this one would be good after reading the reviews. Unfortunately, this one pops when it’s powered on and has audible hum in the sub channel. It’s basically unusable. I tried a previous board from Ayima and it had a loud pop also.
I’ve tried many board amps and I hoped this one would be good after reading the reviews. Unfortunately, this one pops when it’s powered on and has audible hum in the sub channel. It’s basically unusable. I tried a previous board from Ayima and it had a loud pop also.
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Patrick Clough
5.0 out of 5 starsVerified Purchase
Baang for the buck!
Reviewed in the United States on March 18, 2021
Amazing power for such a small package. Get most out of my speakers...going to larger speakers and sub with crossovers.
Amazing power for such a small package. Get most out of my speakers...going to larger speakers and sub with crossovers.
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Gregory Guerrero
5.0 out of 5 starsVerified Purchase
Calidad precio lo mejor que puedes comprar!!
Reviewed in the United States on June 24, 2020
Es fabuloso este amplificador, tiene control de volumen de los 2 canales y tambien de subwoofer ajustes de trabel...funciona con 12v y 24v, aux in, 3pin in y conexion bluetooth con un super sonido de 50w x 2 y 100w bass, led indicador y apagado muy facil. Las entradas de... See more
Es fabuloso este amplificador, tiene control de volumen de los 2 canales y tambien de subwoofer ajustes de trabel...funciona con 12v y 24v, aux in, 3pin in y conexion bluetooth con un super sonido de 50w x 2 y 100w bass, led indicador y apagado muy facil. Las entradas de los parlantes muy faciles solo tienes que ajustar unos tornillos y listo y con una placa de proteccion, y todo de una gran calidad.
Es fabuloso este amplificador, tiene control de volumen de los 2 canales y tambien de subwoofer ajustes de trabel...funciona con 12v y 24v, aux in, 3pin in y conexion bluetooth con un super sonido de 50w x 2 y 100w bass, led indicador y apagado muy facil. Las entradas de los parlantes muy faciles solo tienes que ajustar unos tornillos y listo y con una placa de proteccion, y todo de una gran calidad.
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Fishstacks
5.0 out of 5 starsVerified Purchase
Simple.
Reviewed in the United States on March 25, 2021
Used in my car powering two 6x9''s and a 6.5 2ohm sub. Played for 3 hours full volume no issues. Plenty of power.
Used in my car powering two 6x9''s and a 6.5 2ohm sub. Played for 3 hours full volume no issues. Plenty of power.
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jenni
3.0 out of 5 starsVerified Purchase
2 defective units
Reviewed in the United States on July 13, 2021
First one came in with no treble, found broken component on circuit board, product was quickly replaced and 2nd one had capacitor not soldered to board, I fixed and installed. Easy to hook up and sounds good. Seems to be lacking in quality control. Issue was quickly resolved
First one came in with no treble, found broken component on circuit board, product was quickly replaced and 2nd one had capacitor not soldered to board, I fixed and installed. Easy to hook up and sounds good. Seems to be lacking in quality control. Issue was quickly resolved
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Top reviews from other countries

Terry
5.0 out of 5 starsVerified Purchase
Amazing 2.1 amp
Reviewed in Canada on October 9, 2020
I connected the "Nobsound HiFi 2.1 Channel Bluetooth 5.0 Power Amplifier Board Case Stereo Subwoofer Amp" to 2x Yorkville E15 tops rated at 700w RMS and a yorkville LS1004 Dual 18-inch - 2800 watts RMS subs, I also used a DC 24V 10A 240W Power Supply, I realize this amp...See more
I connected the "Nobsound HiFi 2.1 Channel Bluetooth 5.0 Power Amplifier Board Case Stereo Subwoofer Amp" to 2x Yorkville E15 tops rated at 700w RMS and a yorkville LS1004 Dual 18-inch - 2800 watts RMS subs, I also used a DC 24V 10A 240W Power Supply, I realize this amp will never drive my PA speakers at max, however I live in an apartment, and at 10% volume its already shaking the building, and the sound is fabulous and I am sure my neighbours all hate me, haha, I had it connected to the aux out on my computer at first, then after installing the bluesoliel blootooth driver I finally got bluetooth working. sometimes after rebooting the pc, I need to disable bluetooth in the device manager for a moment to get it to re connect properly, after doing that it works fine, its not perfect and sound cuts out sometimes, but it is not a constant problem and it is a windows 10 issue, it also pairs with my Galaxy Note 9 flawlessly, so its about 98% good. Customer support from Douk Audio is second to none, they were kind enough to send me another board with APTX they dont sell in canada currently. capable of lossless quality audio over bluetooth. Douk Audio totally rocks!
I connected the "Nobsound HiFi 2.1 Channel Bluetooth 5.0 Power Amplifier Board Case Stereo Subwoofer Amp" to 2x Yorkville E15 tops rated at 700w RMS and a yorkville LS1004 Dual 18-inch - 2800 watts RMS subs, I also used a DC 24V 10A 240W Power Supply, I realize this amp will never drive my PA speakers at max, however I live in an apartment, and at 10% volume its already shaking the building, and the sound is fabulous and I am sure my neighbours all hate me, haha, I had it connected to the aux out on my computer at first, then after installing the bluesoliel blootooth driver I finally got bluetooth working. sometimes after rebooting the pc, I need to disable bluetooth in the device manager for a moment to get it to re connect properly, after doing that it works fine,
its not perfect and sound cuts out sometimes, but it is not a constant problem and it is a windows 10 issue, it also pairs with my Galaxy Note 9 flawlessly, so its about 98% good.
Customer support from Douk Audio is second to none, they were kind enough to send me another board with APTX they dont sell in canada currently. capable of lossless quality audio over bluetooth.
Douk Audio totally rocks!
2 people found this helpful
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marwan ennajih
1.0 out of 5 starsVerified Purchase
Was very looking forward for tihs product
Reviewed in Canada on February 21, 2021
I was excited to finally get some use for my home theatre speaker that we re collecting dust. Mounted the case and everything, I bought their own recommended power supply for the amp and after connecting everything I realize that the left channel is just broken and doesn''t...See more
I was excited to finally get some use for my home theatre speaker that we re collecting dust. Mounted the case and everything, I bought their own recommended power supply for the amp and after connecting everything I realize that the left channel is just broken and doesn''t work. I can plug the right and left speaker on the right output but when I connect left speaker or right speaker on the left output it doesn''t work. It sounds like its fried or something and all I hear is barely any sound and a lot of buzzing coming out from it. Even though the bass out and right out works fine. Now I have no choice but to connect both speakers to the right channel but that''s not good because then I don''t even have mono sound.
I was excited to finally get some use for my home theatre speaker that we re collecting dust. Mounted the case and everything, I bought their own recommended power supply for the amp and after connecting everything I realize that the left channel is just broken and doesn''t work. I can plug the right and left speaker on the right output but when I connect left speaker or right speaker on the left output it doesn''t work. It sounds like its fried or something and all I hear is barely any sound and a lot of buzzing coming out from it. Even though the bass out and right out works fine. Now I have no choice but to connect both speakers to the right channel but that''s not good because then I don''t even have mono sound.
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Cliente de Amazon
5.0 out of 5 starsVerified Purchase
Excelente para reciclaje
Reviewed in Mexico on February 23, 2021
Es un gran producto, en lo personal lo pedí en diciembre y se tardo como 1 mes en llegar directo desde China, la calidad de sonido que maneja es muy buena, las perillas de adelante son muy útiles si tienes o te gusta jugar con el bajo, en mi caso tenia una barra de sonido...See more
Es un gran producto, en lo personal lo pedí en diciembre y se tardo como 1 mes en llegar directo desde China, la calidad de sonido que maneja es muy buena, las perillas de adelante son muy útiles si tienes o te gusta jugar con el bajo, en mi caso tenia una barra de sonido vieja LG que corte a la mitad y aproveche la misma para las bocinas, en el subwoofer yo mismo hice el cajón con madera, estilo los que vende Bose y suena muy bien, lo tengo en mi casa con 12 volts 4 amperes y el bajo de 600 Watss y lo mueve sin ninguno problema, este amplificador lo recomiendo si tienes algunas bocinas viejas o que el aparato ya no sirva, pues puedes reciclar y darles vida nuevamente , en cuanto al volumen es muy alto demasiado diría yo, no recomiendo meter bocinas chicas, si le quieren meter bocinas de unos 5 o 10 watss la verdad es que van a sonar horrible, lo probé con una bocinas de 1.5 pulgadas de 15 watss Haman Kardon y a muy poco que le subas se pierde la calidad.
Es un gran producto, en lo personal lo pedí en diciembre y se tardo como 1 mes en llegar directo desde China, la calidad de sonido que maneja es muy buena, las perillas de adelante son muy útiles si tienes o te gusta jugar con el bajo, en mi caso tenia una barra de sonido vieja LG que corte a la mitad y aproveche la misma para las bocinas, en el subwoofer yo mismo hice el cajón con madera, estilo los que vende Bose y suena muy bien, lo tengo en mi casa con 12 volts 4 amperes y el bajo de 600 Watss y lo mueve sin ninguno problema, este amplificador lo recomiendo si tienes algunas bocinas viejas o que el aparato ya no sirva, pues puedes reciclar y darles vida nuevamente , en cuanto al volumen es muy alto demasiado diría yo, no recomiendo meter bocinas chicas, si le quieren meter bocinas de unos 5 o 10 watss la verdad es que van a sonar horrible, lo probé con una bocinas de 1.5 pulgadas de 15 watss Haman Kardon y a muy poco que le subas se pierde la calidad.
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gunner
5.0 out of 5 starsVerified Purchase
Bang for the buck!
Reviewed in Canada on January 26, 2021
I bought this for my off grid camp because of its input voltage range I have to say I''m very impressed with this little unit. I have some old RCA boom box speakers which have built in ported subs on a separate input.So this amp allows me to run these speakers as invented....See more
I bought this for my off grid camp because of its input voltage range I have to say I''m very impressed with this little unit. I have some old RCA boom box speakers which have built in ported subs on a separate input.So this amp allows me to run these speakers as invented. I''m running the unit off a dewalt 20V max 1.3Ah battery. It ran at conversation volume for 4 hours. If may go longer but I had to go to sleep. Lol. For this price, you can''t beat it.
I bought this for my off grid camp because of its input voltage range I have to say I''m very impressed with this little unit. I have some old RCA boom box speakers which have built in ported subs on a separate input.So this amp allows me to run these speakers as invented. I''m running the unit off a dewalt 20V max 1.3Ah battery. It ran at conversation volume for 4 hours. If may go longer but I had to go to sleep. Lol. For this price, you can''t beat it.
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Soundrools
5.0 out of 5 starsVerified Purchase
Flexible little amp
Reviewed in Canada on August 10, 2021
I used this Amp to drive a homemade portable ultra light and small sound system. The only challenge now is to find a battery supply with enough juice to source the wattage that this amp can put out when t is plugged into an AC-DC power supply. One note: there is a little...See more
I used this Amp to drive a homemade portable ultra light and small sound system. The only challenge now is to find a battery supply with enough juice to source the wattage that this amp can put out when t is plugged into an AC-DC power supply. One note: there is a little switch to control the frequencies sent to the left and right speakers. When set to ''all frequencies,'' the left and right speakers will get bass as well as the sub. When set to ''normal'', the left and right speakers will not reproduce the lower bass frequencies. If you have an issue with a bit of sparking from the power connector when plugging the amp in, you could just add a power switch between the amp and your power source. BTW: all the level controls make it much easier to tailor the final sound output.
I used this Amp to drive a homemade portable ultra light and small sound system.
The only challenge now is to find a battery supply with enough juice to source the wattage that this amp can put out when t is plugged into an AC-DC power supply.
One note: there is a little switch to control the frequencies sent to the left and right speakers.
When set to ''all frequencies,'' the left and right speakers will get bass as well as the sub.
When set to ''normal'', the left and right speakers will not reproduce the lower bass frequencies.
If you have an issue with a bit of sparking from the power connector when plugging the amp in, you could just add a power switch between the amp and your power source.
BTW: all the level controls make it much easier to tailor the final sound output.
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