Cayin M-11LS User manual

User's Manual
VACUUM TUBE PRE AMPLIFIER-VACUUM TUBE PRE AMPLIFIER-
-11LS-11LS
M
NFB SEL..NFB SEL..
INPUT SEL.INPUT SEL.
BALANCE
LINE 1 LINE 1
LINE2LINE2LINE3LINE3
NFB - dB . 3 NFB - dB . 3 NFB dB.0NFB dB.0

1
Thanks for choosing se read the user's manual carefully
before installation and operation.
CAYIN M-11LS and pleaVacuum Tube Pre-Amplifier
Table of Contents
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1
2
3
3
4
Maintenance 5
5
6
7
8
10
10
11
12
12
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9
Small Tips
Package Contents
Product Features
Safety Precautions
Specifications
Warranty Service
Precautions
Front Panel
Rear Panel
Remote Control
Installation
Tube Replacement
Audio Connection
Turning on

Please carefully check the package first and then open it.
Package contents include:
1 CAYIN M-11LS 1 piece
2 Main Fuse 2 pieces
3 Power cord 1 piece
4 Remote Control 1 piece
5 (AAA) Battery of 1.5V 2 pieces
6 User Manual 1 piece
7 Hex wrench
.；
.；
.；
.；
.；
.；
.
's
1 piece
Please make sure local voltage level is matched with the input level of the amplifier,which indicates on the
rear panel. Too low or too high voltage may cause problem. Please contact our company or our local agent if
you've found improper voltage.
Recommendation:
Keep all packing materials for future use .
CAYIN M-11LS is designed and manufactured with our original parts and reaching
the best results. We are not responsible for problems and damages caused by non-original parts replacement in
Vacuum Tube Pre-Amplifier
NOTE:
2
Package Contents
All other parts except above are not included.
NOTE:

1. Unplug the power cord if you are not going to use the product for an extended period of time.
2. The machine will become hot after working for a long time. Please keep the unit's ventilation open and install
the amplifier at a well-ventilated place to avoid troubles and fire hazard.
3. Forbidden to operate when the output is open or shorted.
4. Do not attempt to service this product yourself. Opening the cover may expose you to dangerous voltage or
other hazards.
5. We are not responsible for any problems caused by checking and opening without permission of our
company. For service, Please contact a qualified service technician.
6. Do not place any objects filled with liquids such as vases or some others on the top or around.
7. Clean only with dry cloth.
8. Please move the amplifier carefully not to drop the unit or be subject to other strong shocks.
3
Product Features
Safety precautions
◆
◆
◆
◆
◆
◆
◆
◆
The elegant design is like the opera theatre style.
EI output transformer with wide bandwidth is applied.
Two pieces 6SN7 has been used for voltage amplification.
Russian Sovtek 5AR4 tube rectifier, EH6V6GT tube for high voltage regulation, and Choke input
circuitry are used to clear up all external disturbance and provide clean power supply.
Japanese Takman Carbon Film Audio grade resistors are applied to support exquisite sound.
Multicap and SCR Capacitors have been used in the amplifier.
The professional XLR socket can transfer the music signal as balance signal to avoid the external
disturbance.
Aluminous remote control is applied.

4
Specifications
◆To reduce the risk of electric shock, do not remove the cover.
◆
◆
No user serviceable parts inside. Refer servicing to qualified
service personnel.
To reduce the risk of fire or electronic shock, do not expose
The lightning flash with arrowhead symbol is intended to alert user to the presence of uninsulated
“dangerous voltage” within the product's enclosure that may be of a risk shock to persons.
The exclamation point is intended to alert user to the presence of important operation and maintenance
(servicing) instructions accompanying the appliance.
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Output Voltage
Plusgaining
Frequency Response
THD
S/N Ratio
Input Sensitivity
Input Impedance
Output Impedance
Max Power Consumption
Tube
WDH
Net Weight
Working Condition
Input Terminals
Ouput Terminals
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2V
14dB(1KHz)
6Hz 110KHz(-3dB)
.2 1KHz
96dB
RCA:430mV,BALANCE:860mV
100K
400
EH6V6GTX1 6SN7X4 SOVTEK 5AR4X1
BALANCE LINE1 LINE2 LINE3
BALANCE RCA OUT1 RCA OUT2
～
%（ ）
Ω
Ω
、、
、、、
、、
0
70W
460×437×147mm³
18kg

Warranty Service
1.This product is warranted for a period of twelve months beginning from the date of purchase.
2.The defective product must be returned to your dealer or our company for repairing when your dealer or our
company accepts your requirement.
3.The warranty doesn't extend to any product that has been opened by you without permission of our
NOTE:
◆
◆
Use the soft dry cloth to clean up the chassis regularly.
Do not use any chemicals for cleaning.
Maintenance
5
The information in this manual is subject to change
without further notice.
NOTE:
NFB SEL..NFB SEL..
INPUT SEL.INPUT SEL.
BALANCE LINE
1 LINE 1
LINE2LINE2LINE3LINE3
NFB - dB . 3 NFB - dB . 3 NFB dB.0NFB dB.0

Precautions
YALIDA YN-401
◆
◆
◆
◆
Connect the power only after finishing other connections.
It is normal that power transformer becomes hot for extended period of operation.
Unplug the power cord if you're not going to use the product for an extended period of time.
Please make sure corresponding voltage is the same as required. We are not responsible for damage caused
6
Connected to AC Input
NOTE:
Connected to the power socket
Connection of power cord:
Connect the speaker cables and signal cable first
and then insert the power cord into the power socket.
Connection of power cord:
LINE1LINE1 BALANCE LINE2LINE2
MODEL M- LS:11MODEL M- LS:11
LINE3LINE3 BALANCE OUT1OUT1OUT2OUT2
OUTPUT
220 50 70
FUSE T AL V1 250FUSE T AL V1 250
VACUUM TUBE PRE AMPLIFIER-VACUUM TUBE PRE AMPLIFIER-

7
Front Panel
⑤. ：
⑥.
：
NFB. Indicator：
The NFB.-3dB indicator will be on when it is -3dB.
The NFB.0dB indicator will be on when it is 0dB.
Cayin M-11LS has memories and it will default last
operation state when turning on.
⑦.
⑧. ：
Used to indicate the working state. The
indicator will be on when it is working normally.
The indicator will flicker for 30 seconds when it
delays to work. The indicator will keep flickering
when it is at mute state.
IR Remote Sensor
Working Sate Indicator/Mute Indicator
Volume Knob
Used to receive the code of remote control.
①. （ ）：
②. （ ）
（）：
④.
Power Switch
NFB. Selector
POWER
.
INPUT SEL.
Used to switch on/off the amplifier.
Used to choose NFB.-3dB or NFB.0dB working state.
NFB SE
.L：
③.
：
Input Selector
Input Selection Indicator
Used to choose 4 types of audio sources.
Please select corresponding input and corresponding
input indicator will be on.
You can hear sound from BALANCE when BALANCE
indicator is on. BALANCE indicator is preset to be on when
the machine is turned on.
You can hear sound from LINE1 when LINE1 indicator is on.
You can hear sound from LINE2 when LINE2 indicator is on.
You can hear sound from LINE3 when LINE3 indicator is on.
Cayin M-11LS has memories and it will default last operation
12345678
NFB SEL..NFB SEL..
INPUT SEL.INPUT SEL.
BALANCE
LINE 1 LINE 1
LINE2LINE2LINE3LINE3
NFB - dB . 3 NFB - dB . 3 NFB dB.0NFB dB.0

8
Rear Panel
①
②
③
④
⑤
Balance Signal Input Terminal
Input Terminal
Output Terminal
Balance Output Terminal
Power Socket with Main Fuse
Used to connect to the balance output terminal of CD player.
Used to connect to the unbalance output terminal of CD player.
Used to connect to the unbalance input terminal of power amplifier.
Used to connect to the balance output terminal of power amplifier.
Main fuse is located just below the power socket.
.
.
.
.
.
2 4 5 1 3
LINE1LINE1 BALANCE LINE2LINE2
MODEL M- LS:11MODEL M- LS:11
LINE3LINE3 BALANCE OUT1OUT1OUT2OUT2
OUTPUT
220 50 70
FUSE T AL V1 250FUSE T AL V1 250
VACUUM TUBE PRE AMPLIFIER-VACUUM TUBE PRE AMPLIFIER-

9
Remote Control
NFB SEL..NFB SEL..
INPUT SEL.INPUT SEL.
BALANCE
LINE 1 LINE 1
LINE2LINE2LINE3LINE3
NFB - dB . 3 NFB - dB . 3 NFB dB.0NFB dB.0
Installation
1. Place the remote control upside down. Screw the rear
cover open with the attached hexagon screwdriver.
2. Pull out the battery case carefully (do not break the
wires connected).
3. Put in the batteries with correct polarity.
4. Push in the battery case and screw the rear cover
1. NFB.
2. Audio Source Input Selector
3. Mute Button
4. Volume Control Selector
Selector
Effective Distance about 6m：◆
◆
◆
◆
Don't drop the remote control. Keep the remote control
dry.
Replace the batteries timely.
Don't mix new and old batteries together and use the
batteries with the same specification.
Take out the batteries if you don't use the remote control
for an extended period of time.
NOTE:
1
2
3
4

Carefully read and follow the manual for installation:
Do not place the machine near heat sources such as radiators, heat registers or other products that produce
heat.
In order to avoid being overheated please keep the unit's ventilation open.
Do not expose this appliance to rain or moisture.
Keep the amplifier in a certain distance so that it can be easily connected.
Amplifier should install steadily and make sure all four feet are on the same level.
Keep the amplifier over 15cm's distance to the surrounding walls.
◆
◆
◆
◆
◆
◆
Installation
Please make sure local voltage level is matched with the
input level of the amplifier, which indicates on the rear
panel. Too low or too high voltage may cause problems
Tube Replacement
10
NOTE:
Tubes for the Machine Tubes Replacement
6V6GT
5AR4
6SN7 ECC32 CV181、、 、、6SN7GT 6H8C 6N8P
GZ34
6V6

11
Audio Connection
Connection method of with other audio equipments Take pictures below for your reference.CAYIN M-11LS
To audio output terminal
RED
BLACK
M-11LS
M-845D
M-50CD
LR
RL
LINE1LINE1 BALANCE LINE2LINE2
MODEL M- LS:11MODEL M- LS:11
LINE3LINE3 BALANCE OUT1OUT1OUT2OUT2
OUTPUT
220 50 70
FUSE T AL V1 250FUSE T AL V1 250
VACUUM TUBE PRE AMPLIFIER-VACUUM TUBE PRE AMPLIFIER-
speaker Left（）speaker Left（）speaker Right（）speaker Right（）
RED
BLACK
•
•
•
•
•
Pleace refer to the manuals of other connected
equipments during the installation.
Do not insert the power cord into the main socket
before all other equipments are well connected.
R refers to right channel while L represents left
channel.
Please take the right guidance for connection as
wrong connection may cause noise, low-grade
function or damage.
Do not fasten signal cable together with power
cable and speaker cables. It will worsen the
Wrong connection
Right connection
NOTE:
BALANCE Socket:
1. The BALANCE socket is with XLR input. The
functions are following:
Music signal is transferred as balance signal
without the outside disturbance.
Professional XLR connectors are used to raise
reliability of connection.
2. In the following two systems, professional XLR
connectors are used for inside connection.
European System ( =COLD, =HOT)
USA System ( =HOT, =COLD)
3. This amplifier uses the USA System.
If the XLR balance connector is used by European
•
•
①②③
②②③
BALANCE Socket:
①
②③
GND
HOT
COLD
①
②
③
GNDCOLD
HOT

12
•
•
•
Turn on the amplifier, the power indicator will be on and
the working indicator will keep flickering.
The working indicator will be on after 30 seconds. It
means that the amplifier is working normally. If the
working indicator is off, please turn off the power and
contact with our local agent or our company.
Select the right audio source channel, adjust the volume
to a certain position and then you can enjoy themusic
you prefer.
NOTE：
◆
◆
Turn on: CD player- decoder- pre-amplifier-
power amplifier
Turn off: power amplifier- pre-amplifier-
decoder- CD player
Turning On
Before turning on the amplifier please make sure all connections are right and power supply is stable.
1. When the audio system is under working state, don't
unplug the signal cable or speaker cables, or it will
cause damage to the amplifier and other equipments.
2. It should at least takes 2 minutes before you turn on the
power again, or it will cause damage to the vacuum
tubes.
NOTE:
Read the Manual
Keep the Manual
Warning Signs
Operation
Parts
Placement
Power
Overload
Warranty Service
Troubleshooting
——
——
——
——
——
——
——
——
——
——
Please read the user's manual carefully before installation and operation.
Please keep the manual for future reference.
Don't tear off or rub off the serial number.
Do the operations as you are instructed in the Manual.
If you are going to use parts not supplied by our company like power cord, fuses etc please
make sure that parts you used are compatible with the safety requirements. Or it will cause fire or electric
shock.
Put the amplifier on a level place. Make sure that it doesn't bring damage to the children,
adults and the amplifier itself.
Please make sure the local voltage is the same level as indicated on the rear panel.
If the power socket is overloaded with other equipment, it will cause fire or electric shock.
Do not open the product and change the components inside yourself. Opening
the cover may expose you to dangerous voltage or other hazards. The warranty doesn't extend to any
product that has been opened by you without permission of our company.
If any problems when you are using the product, please check according to
Small Tips

15
Please follow the instruction in the manual in order to keep the amplifier work in its best state. If wrongly
operated and you thought that would be troubles please check according to following tip to look for the exact
reason.
is the registered trademark of Zhuhai Spark Electronic Equipment Co., Ltd.NOTE:
Troubleshooting
Problem Cause Remedy
NO OUTPUT
Power is OFF.Indicator
Power is ON.Indicator
Noise output
Sound field Positioning
is not so good.
Power cord is not well-connected.
Main fuse is out.
Troubles of inner parts or components.
Volume is at ZERO.
NO signal input.
Ground of input signal cable is open
or bad contact of the input signal
cable.
Components or circuits are in trouble.
Signal input cables or speaker
cables are wrongly connected.
Check power cable connection
or power outlet connection
Replace with the same type
and value fuse.
Please contact with local
agents or our company.
Turn up the Volume.
Check the function of the
sound source.
Check the input selection and
switch to the proper input.
Replace the input signal
cable with a new one.
Please contact with local
agents or our company.
Reconnect it as suggested in
the manual.
Malfunction of Remote
Control.
Be disturbed.
Low Battery.
Obstacles between the amplifier and
remote.
Keep away from the source of
disturbance. Turn off and restore.
Replace with new batteries.
Remove the obstacles.