It uses dual-core NE5532 imported chip;. The audio input is 3P audio cable. 1 tone board. 2 3p audio cable. Material: PCB board, plastic.
Audio Preamp Frequency Adjustment Audio Setup Music Listening PCB Board Material
Audio Preamp Frequency Adjustment Audio Setup PCB Board Material Plastic Casing
3P Audio Input Audio Preamp Tone Board Compact Size High Frequency Adjustment
For Audio Devices Audio Preamp Audio Setup PCB Board Material 3P Audio Input
