Fosi Audio N2 Manuale utente

N2 Headphone

Amplifier User’s Guide

Product Overview

Product Specifications

The N2 features a switch for adjusting gain as well as another switch to

fine-tune bass levels. The switch for high and low gain ensures that you can

use the N2 with a wide variety of headphones, and that your listening volume

needs are covered. The Bass switch gives them some extra punch to make your

songs and movies come to life. The all-aluminum silver body has been carefully

CNC processed and is the best choice for your pocket headphone amplifier.

Audio input:

3.5mm headphone port

Charging port:

Type-C

Power supply:

DC 5V 1A

Op amp:

OPA1642

Headphone output:

3.5mm headphone port

Volume adjustment mode:

High precision volume knob

Internal voltage：

±9.5V

Current amp:

1W triode to tube

3.5mm headphone

output

3.5mm headphone input (sound source)

Power indicator light

Charging indicator light

Type-C charging port

Gain switch

Bass switch

Power Switch /

Volume Control

Quick Setup

How to use?

Package Contents

Fosi Audio N2 ×1 Type-C power cable ×1

User manual ×1 3.5mm to 3.5mm cable ×1

Battery capacity:

2200mAH

Magnification (Av):

GAIN=L:3 GAIN=H:6.8

Frequency response:

10Hz-25KHz

THD+N:

0.005%

Headphone output power:

16ohm/330mW 32ohm/320mW

64ohm/298mW 300ohm/100mW

Product weight:

126g

Battery Life:

about 12h

Low-frequency gain（BASS=ON):

+6dB

SNR:

＞100dB

Headphone output impedance:

16ohm-600ohm

Dimensions:

4.17 x 2.64 x 0.55 inches

(106 x 67 x 14mm)

Step 1: Connect your mobile phone, PC, or other audio source device to N2

(3.5mm audio input).

Step 2: Turn the Power Switch knob slightly to the right to turn on the power.

Note: The blue power indicator indicates sufficient power.

Low battery warning: The blue indicator light will turn red.

Step 3: Connect your headset or headphone to N2 by 3.5mm headphone jack,

adjust the volume control, then enjoy it!

1.Can it be used while charging?

- It is not recommended to use while charging, because current disturbance

occurred when charging may lead to noise.

2.How long can the N2 play?

- N2 equips with 2200 mAH battery supports 12-hour playtime.

Q&A/ Troubleshooting

Warranty Information

About Fosi Audio

3.Can I connect the N2 with an iOS or Android device?

- Yes, 3.5mm stereo interface meets the needs of most devices.

4.It is turned to the maximum, but the volume is still not loud enough.

What should I do?

- Our product is designed with a gain switch, if the sound is not loud

enough, you can flip the gain switch up.

5.All cables are connected, but there is no audio output?

- Please check the power indicator is on.

- If the power indicator lights, check that the VOL knob is in the

smallest state, if it is, and it is normal to rotate clockwise in the

minimum state.

6.Get noise when playing music?

- Try different 3.5mm audio cable, headphone, music source,

and check again.

- Please keep this device away from other electronic devices.

- Try different playback software and song detection.

All Fosi Audio products have an 18-month limited warranty on parts and

labor from the date of purchase. Please contact us if you have any

Fosi Audio designs and builds innovative audio products with all your music in

mind. Great sound, simple but elegant designs, high-quality materials, and

truly useful features are what Fosi Audio is about. We sincerely hope you get

as much enjoyment from our products as we’ve had to create them!

Our website: www.fosiaudio.com

Amazon store: www.amazon.com/fosiaudio

Our Youtube channel: Fosi Audio

Facebook page: Fosi Audio

WhatsApp: +86 17722625601

After-sale Service and Technical Support Email:

customer@fosiaudioshop.com

fosiaudio@hotmail.com

problems.

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