Audio In
MIC 1: -28 dBV, 2.57 KΩ, unbalanced, 6.35 mm jack, supports dynamic microphone connection
USB 2.0 × 1
RCA in 1: 0 dBV, 5 KΩ, unbalance, RCA pin jack
Bluetooth
Audio Out
Constant Voltage Output × 2，100 V COM
Constant Resistance Output × 2，30 W 4 Ω to 8 Ω
RCA Out 1: 0 dBV, 100 Ω, unbalance, RCA pin jack
RCA Cascading: support a cascade of up to 3 amplifiers
Bluetooth
LED Indicator
Power indicator (solid white): the device is normally working
USB flash drive indicator (solid white): the device is in USB mode
Bluetooth indicator (solid blue): the device is in Bluetooth mode
USB flash drive indicator (off) and Bluetooth indicator (off): the MIC input and RCA input are mixed
Volume Knob
MIC Volume Knob × 1，Partition 1 Volume Knob × 1，Partition 2 Volume Knob × 1
USB
USB 2.0
File format: FAT32
USB flash drive file playing logic: traverse play level 3 directory files in the USB flash drive.
Power Interface
Aperture size: Ø2.0 mm
