Audio TPA3116 Subwoofer Amplifier 2.1 HIFI Stereo Digital Power Bluetooth-compatible 2*50W+100W B AMP for Speaker

Feature

Name:TPA3116D2 2.1 digital power amplifier board

Ch type:TPA3116 D2

Ch protection: overvoltage, undervoltage, overheating, DC detection and short circuit Operating voltage range: DC 11-25V (current 3-4A or more, the proposed 19-24V / 4-5A above),

Audio input sensitivity: 600-800mV,

Frequency response range: 20Hz-20KHz,

Woofer cutoff frequency:26Hz-160Hz

Speaker Impedance:

Left and right channel speakers: 4-8 Ohm,

Ba speaker Impedance: 2-8 Ohm,

The maximum output power: 50W (left channel) +50 W (right channel) +100 W (subwoofer),

Maximum output power: 100w (2 ohm speakers connected)

Number of channels: 3-channels

Size: 100* 100 * 22mm

Features:

4 Ohm 10W Mini Audio Speaker 53mm Full Range Aluminum Basin Stereo Neodymium Loudspeaker.Small Size high power

Function switch Instructions for use: 1. Plug in the power on default Bluetooth mode 2. BT disconnected, long pre the switch can switch to the audio input mode 3. BT play status, short pre the switch to pause / play

Paage included:

1*Amplifier Board

Switch use:

Can choose different sounds according to inp>

If the ba volume is very loud, it may not be obvious effect.Because the ba channel output has included these ba,and the ba volume is much louder than the volume of the left and right channels.

Product Questions

1. Amplifier board has current sound and noise during use

Most of our amplifier board use DC power supply. The board itself does not produce current sound and noise. The main causes of current acoustic noise are: A, The power supply filter used is not good; the current sound is caused by wrong input by the power or audio input. B, The input signal quality is poor; the output of the device connected to the input is improper, and the noise is caused by the abnormal input of the audio source. C, The input cable is of poor quality; the line is in poor connect; the wiring is damaged; the wiring is suspended D, The input connection has other playba devices, and some devices share the power supply to cause noise. 2. No sound output, no sound in 1 channel?

A, The speaker is broken, or the speaker cable is not connect well. B, The input cable is not in good connect; the wiring is damaged; the output of the device connected to the input is improper. 3. Volume broken and breaking sound when turn loud?

A, The power input is insufficient, confirm the wiring is correct first, and the supply current is sufficient, B, The speaker itself has poor performance or damage, and the speaker power is too small or too large. C, left and right channel speakers (+) (-) output are independent, can not be connected to each other 4. Speaker broken sound when subwoofer amplifier volume turn loud ?

A, The power input is insufficient, first confirm the wiring is correct, the supply current is enough B, Whether the power of the speaker itself is too large or too small, or the ba performance of the speaker itself is poor; the structure of the speaker box; these abnormalities will cause breaks. 5.The volume power is not enough?

Power and power supply voltage, the amplitude of the sound source signal, the size of the speaker impedance are all related, any kind of deficiency will affect the power 6. Will the amplifier be burnt?

A, The positive and negative poles of the power supply are connected rely; the power supply voltage is too high, exceeding the limit operating voltage of the board B. If the board requires a DC power supply, it is not allowed to connect directly the AC transformer power supply (this can be rectified and converted to DC power before it can be used) C. To confirm that the wiring is correct, then connect with the power supply. The wrong line connected or the short circuit both will cause damage to key parts.

About shping
Shping and Pa All it will be double cheed and well paed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the paage to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedba, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at cheout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbaYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedba for the transaction.