GHXAMP TPA3116 2.1 Subwoofer Bluetooth Amplifier Digital Audio Board 50W*2+100W Bass AUX For 2.1 Bluetooth Speaker DIY NEW

Will be shipped in 3-5 days
Guaranteed safe checkout
View cart
Tips: if you need Power Supply,Please Choose this : 24V 6A Amplifier Power Supply
and if you need subwoofer speaker ,Please choose: 4OHM Subwoofer
This is a support Bluetooth audio receiver Updated, with a pre-amplifier, Bass crossover Processing. With bass, left and right channel volume adjustment, treble adjustment, the total volume potentiometer control 2.1 amplifier board.
Use DC power supply: 12-24V Power Supply, Maximum support 50W (left channel) +50 W (right channel) +100 W (bass channel) three-channel output.
Is the use of the United States TI company TPA3116D2 high-performance digital amplifier chip as the core, a parallel bridge subwoofer output, do a left and right channel output.
Wide operating voltage, power-saving design, efficiency up to 90%. You can use good performance switching power supply, laptop switching power supply, you can also use the charging bottle, or car power supply and so on.
Board is a good test of the finished product board is welded, according to figure connected to a good speaker, audio input or connect the Bluetooth audio device and connected to the power can be used.
Volume potentiometer:
Volume potentiometer left turn is to adjust lower volume, turn right is to adjust HIGH volume. Press Down is the function switch
Function switch Instructions for use:
1. Plug in the power on default Bluetooth mode
2. Bluetooth Disconnected, long press switch can Change to audio Input Mode.
3. Bluetooth play status, short press the switch to pause / play
The main technical parameters:
101 (W) x 100 (D) x 25 (H) mm, excluding potentiometer and socket projection
Voltage range: DC 11-25V (Current 3-4A, or 19-24V / 4-5A, such as high power requirements 20-24V / 8-9A above)
Subwoofer frequency range :20Hz~200Hz
Bluetooth receiving distance:> 8 m (meters)
Audio input sensitivity: 600-800mV, frequency response range: 20Hz-20KHz,
Speaker impedance: left and right channel speakers: 4-8 ohm, Bass speaker impedance: 2-8 OHM,
Product questions:
1. Power amplifier board using a current sound, noise?
Our power amplifier, most of them are the use of DC power supply. The board itself does not produce current noise and noise,
The main reasons are:
A: with the power supply filter is not good, the current sound is the power or audio input is not normal
B: The quality of the input signal is poor, the output of the device connected to the input link is not normal, and the noise is caused by improper audio input
C: The quality of the input cable is poor, the cable is not properly connected, the cable is damaged, and the wiring is vacant
D: input connected to other playback devices, some devices share the power supply to cause noise
2.No sound, no sound in one channel?
A speaker is bad, speaker cable barrier
B, poor input cable connection, wiring damage, input connected to play the device output is not normal
3 .Volume open big breaking sound, broken sound?
A. Insufficient power supply, wiring to confirm the correct wiring, supply current is sufficient
B. Speaker itself poor performance or damage, speaker power is too small or too large
C. Left and right channel speaker (+) (-) output is independent. Can not connect to each other
4. Subwoofer amplifier volume open large speaker broken sound?
1. The lack of power, the line to confirm the correct wiring, power supply current is sufficient
2. The speaker's own power is too large or the audience, the speaker's bass performance is poor. The structure of the speaker box, this
These are not normal will cause broken sound
5. The volume of power is not enough?
Power and power supply voltage, the amplitude of the audio signal, the size of the speaker impedance has a relationship, any one will be less than shadow
Sound power
6. Amplifier will burn it?
A: The positive and negative polarity of the power supply are reversed, the power supply voltage is too high, exceeding the working voltage of white paper
B: If the board requires the use of DC power supply is not directly connected to the AC adapter power supply (this need to add rectifier filter to
DC, it can be accessed)
C to confirm the wiring is correct, connected to the power supply, wiring errors, short circuits, will cause damage to the key parts!
Tips:Each batch of Material and Color will be different, But the Material parameters are the same. Random delivery,
1pcs TPA3116 2.1 Bluetooth Subwoofer Amplifier Board
This is a real test data on the instrument, the output power and supply voltage and current, speaker impedance, the amplitude of the input source. Usually the power supply voltage is higher, the output power that can be supported is bigger. Different impedance speakers, support for the output power is also different, usually smaller speaker impedance power is also easier to do larger. Power requirements are particularly high pro, before taking the picture to understand the above parameters
Sorry,dear buyer.the amplifier need wait 10days in stock.if you want buy,
please leave a message.Thanks
Brand Name:
Maximum Power Per Channel:
 3 (2.1)
Model Number:
 TPA3116D2 Bluetooth With AUX Audio Input


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of PDK Electronics (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

A few reasons why buy from us:

We try our best to make your shopping experience not only pleasant, seamless and hassle-free, but also secure.

Enjoy flexible international shipping services that currently operate in over 200 countries across the world.

It's okay to change your mind! You can send your order back for a full refund, we've got you covered with our full Buyer protection.

Brand new products are available on a regular basis.

We don't want you to choose between the best value and the best service. That's why we offer competitive pricing.

Knowledgeable and professional support team is always happy to help you.

Check your order status online. As easy as that!

There are no reviews yet

Shopping cart