DacimoraHigh-Fidelity 16-300 Ohm Headphone Amplifier preamplifier Stereo Headphone Amplifier with 8-Level gain Switch Adjustment Supports USB-C/3.5MM Input 3.5/4.4mm Headphone Output

Dacimora is a factory with a 20-year production history. It is widely recognized by colleagues or customers in China and continues to expand into foreign markets such as . Please believe in the quality and service. I wish you a pleasant shopping experience.


Product Introduction：
How to properly connect?
Steps for proper use of headphone amplifier
Step1: Make sure to turn the VOL knob to the minimum.
Step2: Connect the input with audio source.
Step3: Connect the output with headset.
Step4: Turn on the power switch.
Step5: Wear headphone and adjust the volume.

Packing：
1,1*Headphone Amplifier
2,1 *Use Manual
3,1*USB Power Cable
4,1*Audio Cable
5,1*USB-C Cable

Feature
Input : USB Type C and 3.5mm AUX Input
Output: 4.4mm jack and 3.5mm jack AUX Output
Charged by Micro USB Cable
Under charging state：Blinking blue
When the battery is full：Blue light keep on
General charging time is: 1 hour 40 minutes
Battery capacity: 3000 mAh.

Q: All cables are connected, but there is no audio output?
A:1. Please check the power indicator is on, if not, turn the potentiometer on.
2. If the power indicator light up, check that the VOL knob is in the smallest state, if it is, and it is normal to rotate clockwise in the minimum state.
3. If both of the above are normal, check whether the audio source playback device is paused, muted, or the volume is minimal.

Q: Why the headphone has a big buzzing sound when the input line is connected but not play?
A: When an unshielded signal line is empty, an interference signal will enter the amplifier and be amplified. If you dislike the sound, we suggest you replace the shielded signal line or unplug the signal line.

Note:
If the headphone impedance is more than 100 ohms, GAIN is set to the H position.

• 【Amp Using Time】About10-15 Hours；Load Impedance: 16-300Ω；SNR>120Db，THD+N 0.0003%..
• 【Improve Volume and Quality】The two-stage gain switch of the Dacimora headphone amplifier enhances the signal input of the amplifier circuit to improve the performance of the headphone. SNR>120dB, distortion<0.0003%, not only can output louder sound, but also output clearer sound quality..
• 【Compatibility】Dacimora headphone amplifier is compatible with MP3, MP4, mobile phones, laptops and various digital devices with 3.5mm or USB-C..
• 【Portability】Due to the small size and light weight of the headphone amplifier, you can easily take it with you wherever you go; so you can take it with you when traveling, working, camping and traveling..
• 【Enhanced Sound Quality】Dacimora high-fidelity headphone amplifier can significantly improve the volume and sound quality of the headphones, and can enhance the treble/bass of the headphones by adjusting the L/H button to improve the overall audio performance..