Single power supply: DC power supply
Wide voltage: 6-25V
Original chip: Dual op amp 5532
Lossless audio adjustment: no loss of audio bass and treble adjustment
Notice :This item is Pure tuning board, no amplifier function, can not directly connect the speaker
package include :
NE5532 Volume Control HIIF Lossless Audio Treble Bass Adjustment Tone Board For Digital Power Amplifier Loudsperker With Panel