Page 1
POW ER
ON
VO LU ME
BIA S
NFB .
TR UL
/
HIG H
HIG H
LOW
OFF
STAN DARD
MI N
MA X
LINE 2
LINE 1
XLR PRE- IN
TR
UL
VAC UUM TU BE INT EGR ATED AM PLI FIER C S-15 0A
SEL ECTO R
CS- A 150
Vacuum Tube Integrated Amplifier
User's Manual
Page 2
Thanks for choosing CAYIN CS-150A Vacuum Tube Amplifier and please read the user's manual
carefully before installation and operation.
In order to prevent damage during transportation, the amplifier is packed with protective foams surrounding
the tubes. Before installation and operation, please remove these foams to avoid any risks.
Integrated
Table of Contents
Table of Contents………………………………………………………………………………… 1
Package Contents
Product Features
Safety Precautions
Specifications
Maintenance…………………………………………………………………………………………………………………5
Warranty Service
Precautions
Front Panel
Rear Panel
Top Panel
Remote Control
…………………………………………………………………………………………………………………7
…………………………………………………………………………………………………………………8
……………………………………………………………………………………………………………………9
…………………………………………………………………………………………………………2
……………………………………………………………………………………………………………3
…………………………………………………………………………………………………………3
………………………………………………………………………………………………………………4
……………………………………………………………………………………………………………5
…………………………………………………………………………………………………………………6
……………………………………………………………………………………………………………10
………………………
Installation
Tube Replacement
Audio Connection
Speaker Connection
Turning on
Small Tips …………………………………………………………………………………………………………………14
Troubleshooting
1
…………………………………………………………………………………………………………………11
………………………………………………………………………………………………………11
…………………………………………………………………………………………………………12
………………………………………………………………………………………………………13
…………………………………………………………………………………………………………………14
…………………………………………………………………………………………………………15
Page 3
NOTE:
CAYIN CS-150A Vacuum Tube Amplifier 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 the amplifier.
Integrated
Package Contents
Please carefully check the package first and then open it.
Package contents include:
1.CAYIN CS-150A 1 piece；
2.Fuses:
Main Fuse T3.15AL250V 2 pieces
High Voltage Fuse T315mAL250V 4 pieces.
3.Power cord 1 piece；
4.Remote Control 1 piece；
5.(AAA) Battery of 1.5V 2 pieces；
6.User's Manual 1 piece；
Recommendation:
Keep all packing materials for future use .
NOTE:
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.
All other parts except above are not included.
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Page 4
Product Features
◆
One hundred watts per channel in Class AB Ultra-linear mode, Fifty-five watts per channel in Triode
mode, push pull amplifier design.
◆
All tube Integrated with RCA 22DE4 tube rectifier for Power supply, Tung-Sol 6SN7 voltage
amplification stage and driver stage and KT150 Output tubes.
Two pairs of line inputs, one pair of Pre-In and one pair of XLR input are located on the rear panel
◆
of the amplifier.
Different from other inputs Pre-In offers you a possibility to connect to some other Preamplifier so
◆
that you can the CS-150A as a power amplifier.
Speaker terminals for 4 and 8 ohm speakers are located on the rear panel of the Amplifier.
◆
User bias controls for KT150 have been used for bias adjustment and one meter has been added to
◆
the top plate to allow you to monitor bias with ease.
Bias level selectable for KT150 Power tube. Offer different choice to match with different kinds of
◆
speakers to get the best sound performance.
Negative Feedback switch is on the front plate that you can choose between two levels of NFB to
◆
enjoy the different sound outputs of the CS-150A tube amplifier.
Anodized aluminum front, fully vented chassis with excellent gorgeous finish, hand-made construction
◆
with the finest point-to-point wiring,
Soft-start circuit to protect the amplifier for extended life of sensitive components.
◆
Premium Parts: Alps volume control, Audio grade capacitors and carbon film resistor, Toroid
◆
transformer for power supply, Wide bandwidth EI output transformer, Ceramic tube sockets, etc.
Standard with remote volume control, CS-150A can memorize last operation of the unit once
◆
switched off.
Available front finish: Silver and Black.
◆
Safety precautions
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
Page 5
◆ To reduce the risk of electric shock, do not remove the cover.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
◆ No user serviceable parts inside. Refer servicing to qualified
service personnel.
◆ To reduce the risk of fire or electronic shock, do not expose
the unit to rain or moisture.
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.
Specifications
Powe r Output
Frequency Response
THD
S/N Ratio
Input Sensitivity
Input Impedance
Output Impedance
Max Power Consumption
Tube
× ×
W D H
Net Weight
Working Condition
Storage Condition
55W+55W (
100W 100W (RMS Ultralinear mode)
RMS Triode mode)
+
9Hz~50KHz (-3dB)
2% (1kHz)
90dB
380mV (Integrated)
1200mV (Pre-IN)
100kΩ
4Ω，8Ω
520W
TUNG-SOL 6SN7x4、TUNG-SOL KT150x4、RCA 22DE4x1
420×389×218mm³
34kg
~ ~
Temperature °C °C Moisture
Temperature °C °C Moisture
0 40 20% 80%
~ ~
-20 70 20% 90%
4
Page 6
Maintenance
NOTE:
◆ ◆ Use the soft dry cloth to clean up the chassis regularly.
Do not use any chemicals for cleaning.
POW ER
ON
OFF
Warranty Service
TR UL
/
BIA S
HIG H
STAN DARD
VO LU ME
NFB .
HIG H
LOW
MI N
MA X
LINE 2
LINE 1
XLR PRE- IN
TR
UL
VAC UUM TU BE INT EGR ATED AM PLI FIER C S-15 0A
SEL ECTO R
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 company.
NOTE:
The information in this manual is subject to change
without further notice.
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Page 7
Precautions
Connected to the power socket
INP UT
XLR
LINE2
LINE1
PRE-IN
RIGHT S PEAKER OU TPUT LEFT SPE AKER OUTP UT
CS A-15 0
220V 50Hz 520W
T3.15AL250V
YALIDA
YN-401
Connected to AC Input
Connection of power cord:
Connect the speaker cables and signal cable first and then insert the power cord into the power socket.
NOTE:
◆ 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
◆
by misuse of unsuitable voltage.
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Page 8
Front Panel
TR UL
/
3 4
BIA S
HIG H
STAN DARD
NFB .
HIG H
LOW
MI N
5
6 9
Power Switch
1.
POW ER
ON
OFF
Used to switch on/off the amplifier.
Note: Unplug the power cord if you're not going to
use the product for an extended period of time.
2. Power indicator
Turn on the amplifier the power indicator will be on.
Triode/ Ultralinear Indicator
3.
When the TR Indicator is on: Triode working state
When the UL Indicator is on: Ultralinear working state
Cayin CS-150A has memories and it will default last
operation state when turning on.
4. BIAS
Selector
Select different levels of bias for KT150 Power
tubes. You can choose between High Bias and
Stardard Bias with this switch.
5. Switch
NFB. Selector
Select between High Negative Feedback and Low
Negative Feedback.
Power Indicator/Mute Indicator
6.
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.
Volume Knob
7.
Used to control volume
Switch
VO LU ME
LINE 2
LINE 1
XLR PRE- IN
MA X
81 72
Input Selector Knob
8.
TR
UL
VAC UUM TU BE INT EGR ATED AM PLI FIER C S-15 0A
1 0
SEL ECTO R
1 1
You can hear sound from XLR when XLR indicator
is 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 PRE-IN when PRE-IN
indicator is on.
Cayin CS-150A can memorize last operation of
the unit once turned off.
. Triode/ Ultralinear Indicator
9
When the TR Indicator is on: Triode working state
When the UL Indicator is on: Ultralinear working state
Cayin CS-150A has memories and it will default
last operation state when turning on.
IR Remote Sensor
10.
Used to receive the code of remote control.
working state.
Input Selector Button
11.
Used to select four kinds of audio sources.The
input selection indicator will be on according to
the input audio sources.This function can be
operated on the remote control.
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Page 9
Rear Panel
INP UT
XLR
LINE1
LINE2
PRE-IN
RIGHT S PEAKER OU TPUT LEFT SP EAKER OUT PUT
CS A-15 0
1 2
. Balanced input (XLR)
1
Connect a balanced audio input to the amplifier. Please
make sure the left and right channel is connected correctly.
. Single-ended input (RCA)
2
Connect a single-ended audio input to the amplifier. Please
make sure the left and right channel is connected correctly.
3. Right Channel Output
Used to connect with the right channel of speaker.
4. Left Channel Output
Used to connect with the left channel of speaker.
5. Power Socket with Main Fuse
Main fuse is located just below the power socket.
Replace the fuse with the same type as indicated.
3
4 5
220V 50Hz 520W
T3.15AL250V
8
Page 10
Top Panel
BIA S SEL.
1
/
6SN 7
BIA S ADJ. BIA S ADJ.
/
6SN 7
2
6
7 7
/
22DE4
v5
4
3
/
6SN 7
/
6SN 7
5
2
1. Bias Selector Switch(A1、A2、A3、A4)
Used to select corresponding tube for bias
adjustment.
2. Bias Adjustment (A1、A2、A3、A4)
Used to adjust bias of corresponding power
tube(A1、A2、A3、A4)
3. V1、V2、V3、V4:
TUNG-SOL 6SN7GTB
4. Bias Meter
Used to monitor the working current of the
power tube.
V5 :R CA 22DE4
5.
6. A1、A2、A3、A4:
TUNG-SOL KT150
7.KT150 High Voltage Fuse Holder: Left and
Right.
Diagram 4
BIA S SEL.
6
1
Bias meter when n ot working
A
Diagram 5
Bias meter duri ng working
Note: When work ing normally,
the pointer sho uld stay within
the A zone, still , it wo uld move
for the voltage f luctuation.
Bias adjustment for the power tube:
Turn the Bias Selector Switch to its opposite direction
without releasing it, adjust the corresponding Bias
Adjustment Swith with flat screwdriver, and inspect the
Bias Meter on the top panel to make sure the pointer
keeps in the certer. Bias adjustment for A1.A2,A3 and A4
are the same.After all have been djusted, do it one more
time to make sure all the bias level of A1,A2,A3 and A4
are the same.
Sample of bias adjustment for power tube A1:
1. Turn the Bias Selector Switch A1 to its opposite
direction without releasing it.
2. Adjust the corresponding Bias Adjustment Switch A1
with flat screwdriver until the pointer of the bias meter
keeps in the center. The same for A2, A3 and A4.
NOTE
◆ Be careful of the high temperature of the tubes during operation.
◆ Please replace the power tubes after switch off in 20 minutes, and follow the suggetion to unplug the
inset the tubes.
◆ Power tubes must be matched for well function.
◆ Forbidden to make the pointer of the bias meter out of the A zone when adjusting the power tube.
◆ Make sure the supply voltage is 220V before bias adjustment.
◆ Even under normal working state, the point of the bias meter could move for the voltage fluctuation.
9
Page 11
Remote Control
1. Triode/Ultralinear Selector
2. Audio Source Input Selector
Installation
1. Place the remote control right-side up. Screw the rear
cover open with the attached hexagon screwdriver.
2. Pull out the (AAA)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 close.
VOL UME
POWER
ON
BIAS
NFB.
TR UL
/
HIGH
HIGH
LOW
STANDA RD
OFF
MIN
LINE2
LINE1
XLR PRE- IN
MAX
Effective Distance：about 6m
SELEC TOR
TR
UL
VACUU M TUBE INT EGRATED A MPLIFI ER CS-15 0A
NOTE:
◆ 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.
Batteries with high quality are recommended.
◆
3. Mute Button
4. Volume Control Selector
10
Page 12
Installation
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.
NOTE:
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 or shorten the amplifier's life.
Tube Replacement
Tubes for the Machine
TUNG-SOL 6SN7GTB
TUNG-SOL KT150
RCA 22DE4
Tubes Replacement
6S N7 GT、6H8C、ECC 32、E CC33、6N8P、569 2
KT 15 0、KT120
22 DE 4
11
Page 13
Audio Connection
Connection method of CAYIN CS-150A with other audio equipments Take pictures below for your reference.
CS-150A
L
INP UT
R
XLR
LINE1
LINE2
R
L
CS-100CD
L
R
R
ANALOG OU TPU T DIGITA L OUT PUT
BAL ANC EUNB ALA NCE
RIG HT
LEF T
RIG HT
LEF T
L
Bala nced Connec tor:
1. This amplifier use XLR connectors that ar e
comm only used in pr ofessional application
for ba lanced conn ection.
2. There are two XLR wiring standards:
PRE-IN
RIGHT S PEAKER OU TPUT LEFT SP EAKER OUT PUT
CS A-15 0
AES E BU/
CS-100 CD
USBCOA XIA LOPT ICA LOPT ICA LCOA XIA L
220V 50Hz 520W
T3.15AL250V
Atte ntion to Audio Connection:
1. Please refer to the manual of associate d
equipment whene ver necessa ry.
2. Do not connect the power cord until all
equipment are pro perly conne cted
European st andard: pin 1 =Ground,
Pin 2 = CO LD, Pin 3 = HOT
GNDCOL D
①
②
③
HOT
Amer ican standa rd: pin 1=Ground,
Pin 2 = HO T, Pin 3 = COLD
GND
①
②
HOT
③
COL D
3. This amplifier use American standard. W hen
conn ect to audio eq uipment with balanced output
wire d in European , the playbac k signal might be in
reve rsed phase. W e advise user to maintain the
phas e of the system correctly.
3. “R”ind icates the ri ght channel; “L” indicates
left c hannel.
4. Please make sure all connectors are securely
inst alled. Bad co nnection mi ght cause noise
and degrade in audi o performan ce, or even
dama ging your equ ipment.
5. Ple ase do not tie th e power cord, audio
inte rconnects , and speaker cable together or
run th em in paralle l because
Wrong connection
this w ill produce a dverse
effe ct on audio per formance.
Right connection
Note : Please make s ure + and -, left and right are
conn ected properly.
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Page 14
Speaker Connection
+
-
RED
BLACK
INP UT
XLR
LINE2
LINE1
PRE-IN
speake r（Left） speake r（Right）
Check the impedance of your speakers:
Attach the positive from your speaker to the 4 or 8
ohm terminal and the negative to the 0 ohm
terminals separately. If your speakers are 6 ohm, 4
ohm or 8 ohm (recomme nded) te rminal is
preferential and it would not cause damage to the
amplifier.Connecting the left and right speakers
according to the guidance can make sure of the
acoustic fidelity.
RIGHT SP EAKER OUTPU T LEFT SPE AKER OUTPUT
CS A-150
220V 50 Hz 520W
T3.15A L250V
+
RED
BLACK
Banana pl ug
Normal pl ug
Connection of speaker cables:
1. Unscrew the terminal knob
2. Insert the speaker cable
3. Screw the terminal knob
NOTE:
Connect the speaker cables with the amplifier after it is
•
well connected with the speakers.
Connect both of the speakers to make sure of the
•
acoustic fidelity.
Please notice the signal direction indication of the
•
cables.
Do not mix up the positive and negative ends of speaker
•
cables or it will cause short circuit.
-
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Page 15
Turning On
Before turning on the amplifier please make sure all connections are right and power supply is stable.
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:
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.
Smal l T ips
Read the Manual—— Please read the user's manual carefully before installation and operation.
Keep the Manual——Please keep the manual for future reference.
Warning Signs——Don't tear off or rub off the serial number.
Operation——Do the operations as you are instructed in the Manual.
Parts—— 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.
Placement——Put the amplifier on a level place. Make sure that it doesn't bring damage to the children,
adults and the amplifier itself.
Power——Please make sure the local voltage is the same level as indicated on the rear panel.
Overload——If the power socket is overloaded with other equipment, it will cause fire or electric shock.
Warranty Service——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.
Troubleshooting——If any problems when you are using the product, please check according to
following tips to look for the exact reason. Please contact with our company if you can't solve the
problem.
14
Page 16
Troubleshooting
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.
Problem
Power is OFF.Indicator
NO OUTPUT
Power is ON.Indicator
No Output
for the Left Channel
No Output
for the Right Channel
Sound Distortion
Cause
Power cord is not well-connected.
Main fuse is out.
Troubles of inner parts or components.
Volume is at ZERO.
NO signal input.
High voltage fuse breaks for the
Left Channel
High voltage fuse breaks for the
Right Channel
High input signal level.
Remedy
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 with the same type
and value fuse.
Replace with the same type
and value fuse.
Turn down the volume to
suitable position.
Noise output
Sound field Positioning
is not so good.
Malfunction of Remote
Control.
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.
Be disturbed.
Low Battery.
Obstacles between the amplifier and
remote.
Replace the input signal
cable with a new one.
Please contact with local
agents or our company.
Reconnect it as suggested in
the manual.
Keep away from the source of
disturbance. Turn off and restore.
Replace with new batteries.
Remove the obstacles.
NOTE: is the registered trademark of Zhuhai Spark Electronic Equipment Co., Ltd.
15
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