Our products have higher gain power and a mono switch. When listening to a song with headphones, the left and right sound channels differ. Some are strong and others weak. After opening the monophonic channel, it is the same. It can be adjusted as you like to improve the sound quality.
Impedance: 100 kΩ.
Max. input level: + 15 dBu.
Impedance: approx. 80Ω
Maximum input level: approx. 40 mW in 100 Ω.
Power supply: external power supply, 12 V/150 mA.
1 x 4 headphone amplifier.
1 x power supply.
5 x 1/4" to 1/8" Adapter
1 x user manual (English language not guaranteed).