Feature
●Smart Designs: The power supply, electronic tubes, and operational amplifiers are all independently symmetrical. Also, the dual op amp parallel output power is higher.
●Wide Matching: Comes with 2 kinds of interfaces, 3.5mm and 2.5mm, the stereo amp is compatible with various balance and standard headphone.
●Smart Designs: The power supply, electronic tube and operational amplifier of the aluminum alloy headphone balance amplifier are independent and symmetrical. In addition, dual op amps in parallel have higher output power.
●Pretty Sounds: Independent op amp and power supply will reduce interaction as well as improving to noise ratio and sound quality.Comes with 2 kinds of interfaces, 3.5mm and 2.5mm, the stereo amp is compatible with various balance and standard headphone.
●Easy Carrying: Light in weight and compact in size, the vacuum tube headphone amplifier is very convenient to carry for outdoor use.
[US Plug]
Description
Specification:
Item Type: Headphone Amplifier
Model: B4 X
Material: Aluminium Alloy
Input: 3.5mm Stereo Input
Output: 2.5mm balanced output through BAL interface, and 3.5mm standard stereo interface output.
Charging Voltage: 12.6V
Battery: 1 x 1000mAh 12V lithium battery, shipped with built in battery.
Charging Time: 2-2.5 hours full battery.
Working Time: 4-4.5 Hours
Output Power: 450mW
to Noise Ratio: 99dB
Recommended Load Impedance: 16-400Q
Package List:
1 x Headphone Amplifier
1 Adapter
1 x Audio Cable
2 x Band
1 x User Manual
Note:
When using the headphone amplifier on your phone, if you hear some noise in your headphones, this could be the interference from the cell phone, such as WIFI or 4G , that interferes with the tube and makes the noise. This is normal. Because all tubes have a microphone effect. To avoid this, keep your phone away from the headphone amplifier.