2 Inch Audio Portable 25W Resonance Vibration Speaker

Description

A: Amplifier Board

1. Power amplifier board size: 8.5×5.2CM
2. Fixed hole distance: 7.9×4.6CM

3.Bluetooth 5.0, support button to turn off / boot, support serial port to change the tone volume and off, power on, no call function, the default volume is the largest

4.TX, RX, GND: TTL serial port configuration 9600, N, 8, 1

5.DC24V 4A, the output maximum power 2x30W, power varies with voltage, DC power interface specification 5.5*2.5MM

1. Suitable impedance: 4/6/8 ohm

B: Power Suply

Input voltage: AC100-240V 50/60HZ

Output voltage: DC12V 5A

Max power: 60W

Working efficiency: ≥88%

No-load power consumption:

C: vibration speaker

50MM vibration speaker
Size: Diameter 50MM * 30MM high
Impedance power: 4Ω 25W
Impedance power: 8Ω 20W

Tips:
The horn is all frequency effect, the bass is very strong, the equivalent of traditional loudspeaker 4 inch bass effect, with the other with the size of the traditional speakers, bass is strong, big power.
The end of the line with red mark for the positive, connect the audio line, with amplifier is ok.
Retail or Wholesale is up to you, Welcome again !

D: 30W TPA3110 PBTL digital power amplifier board

TPA3110 PBTL digital power amplifier board 30W stereo class D power amplifier board Bluetooth 4.2 power amplifier board

This board uses the PBTL typical circuit of TPA3110. Single power supply with anti-reverse connection, universal adapter and switching power supply can be used. Most of the resistance container parts adopt standardized patch technology, and the work is stable. The Bluetooth audio receiving module is designed with a special interface. Built-in 5V voltage regulator circuit, you can DIY Bluetooth speakers. The output power is 30W X 2 (@16V), and the board can be connected to 8 ohm and 4 ohm speakers.

Parameter:

Power supply voltage: 8-25VDC

Power supply current: 2A or more recommended

Output power: 30W X 2 (16V)