Easy X7S 2021 User manual

X7S 2021
Class-A Headphone Amplifier With Balanced Output
User Manual

high quality headphone amplifier.
Thanks for purchasing the X7s 2021 and congratulations on choosing this
We sincerely hope the brand new X7s 2021 will bring you excellent Hi-Fi experience.
Please read this manual carefully before using the device.
Dear Customers,
1
Preface

1.1 Balanced headphone output socket
1.2 Headphone port
1.3 Power indicator
1.4 Volume knob
2
Front Panel at a Glance

2.3 AUDIO OUT
2.1 AC power in
2.2 AUDIO IN
3
Rear Panel at a Glance

3.1
4
3.1 Gain controls of the headphone output
Bottom Panel at a Glance

The X7s 2021 is the latest class-A
balanced output headphone amplifier of
aune with 8 pieces of BJT and the design
of clas-A biasing. It has 4 headphone
amplifiers within to build the balanced
headphone socket and the single-ended
headphone port. It can also be used as a
pre-amplifier. The X7s 2021 is a mini
desktop class-A headphone amplifier with
great power and rich sound.
5
Frequency response：20Hz-200kHz ± 0.3dB
Output: RCA (when used as a pre-amplifier)
TYP THD+n <0.0002% @1kHz 300Ω
TYP THD+n <0.00018% @1kHz 300Ω XLR
IMD：
Distortion：
MAX OUTPUT POWER=250mW @300Ω
TYP CCIF IMD <0.00045%
MAX OUTPUT POWER=1000mW @300Ω XLR
Dimensions：145 x 45 x 171 (mm)
Input：RCA
Balanced output：4-pin balanced headphone output socket
Singled-ended port：6.35mm headphone port
TYP CCIF IMD <0.00052% XLR
Output power：
Introduction Specifications

AS A HEADPHONE AMPLIFIER
41
2
3
R-
R+
L+
L-
1 L+ Left channel+
2 L- Left channel-
3 R+ Right channel+
4 R- Right channel-
Balanced female socket definition
Caution:
It is prohibited to use the two headphone
ports at the same time.
6
oftheX7s
2.PlugtheheadphonesintotheX7s
3.Setthevolumetominimumbeforeputtingonthe
headphones
Notice:Pleaseadjustthegaincontrolonthebottom
panelaccordingtotheheadphones.
1.Connect"AUDIOOUT"/"LINEOUT"ofthesound
source (e.g.auneX1s/X5s/M2/S6) to"AUDIOIN"
OPERATING
INSTRUCTIONS
Pairing with aune X1s DAC
Rear panel
Balanced headphone output socket
6.35mm headphone port
Front panel

7
AS A PRE-AMPLIFIER
Notice:pleasesetthegainto12dBwhenusing
of theX7s
theX7sasapre-amplifier.
1.Connect"AUDIOOUT"/"LINEOUT"ofthesoundso
urce(e.g.auneX1s/X5s/M2/S6)to"AUDIOIN"
2.Connect"AUDIOOUT"oftheX7sto"AUDIOIN"/"L
INEIN"ofanactivespeakeroranamplifier
3.Set the volume to minimum before putting on
theheadphones
Paring with the aune X1s DAC
Connecting to an amplifier/active speaker
Rear panel
OPERATING
INSTRUCTIONS

1. The gain of headphone output is adjustable for different headphones (as shown in graphic 3).
4. When switch 1 and 2 are both ON, the gain is 20dB
2. When switch 1 and switch 2 are both OFF, the gain is 0dB
3. When switch 1 is ON and switch 2 is OFF, the gain is 12dB
HEADPHONE OUTPUT GAIN ADJUSTMENT
8
OPERATING
INSTRUCTIONS

Measurements
9

Measurements
10

WUHAN AO LAI ER TECHNOLOGY CO.LTD.
地址：湖北省武汉市硚口区古田5路1 7号新材料孵化基地新1号楼2 01
电话：[phone] 网址：www.auneaudio .com 邮箱：kf@aune a udio.com
武汉奥莱尔科技发展有限公司
[phone]

www.auneaudio.com
aune
Email: [email protected]