Description:
Power amplifier board using TDA8954TH chip, with N-vidia industrial fan, the voltage part of the original Ruby capacitors.
After the pure design to driver more than 10-inch 300W stage speakers! As this is a class A AD class design has both the warmth of class A, there are class D high efficiency, so work with almost no heat!
Product parameter:
Product Name: Digital Audio Amplifier Board
Amplifier chip:TDA8954TH
Input voltage: Dual AC24V4V
Input current:> 5A & 300VA
Input impedance: 1K
Input signal: 1.8V
Number of channels: mono
Magnification: 33
Output power: 420W
Output impedance: 4-8
Working Type: AD class
Size: 110 * 102 * 30MM
Weight: about 245g
Note:
1. The product must be used to supply dual-output toroidal transformer, the output is 3 wires. DC power supply can not be used.Transformer output to 24V200W above, the maximum voltage can not exceed 28V, otherwise it may damage the board.
2 Audio input can be 3 lines or 2 lines, but in the middle of the ground must be connected.
3. The output of the speaker as large as possible, the recommended 8 ohms, also can use 4 ohms.
4. This section is a purely post-class, plus the tone board is better, but after adding tone board, the tone board power and power amplifier board power must to separate. can not be shared, otherwise there will be noise!
Package included:
1pcs TDA8954TH Mono Digital Audio Amplifier Board 420W
