Thank you for choosing Cayin HA-2A Headphone Amplifier
We have inserted protective foam inside the Vacuum Tube Cage in order to protect the
vacuum tubes during transportation. Please remove these foams before you connect the
amplifier into your sound system. Fail to do so might cause serious damage to the amplifier
or disaster such as fire accident.
We have prepared this user manual to help you understand the features and get familiar
with the operation of the amplifier. We suggest all customers read through this manual
before they start to use the device.
Table of Contents
Table of Contents ……………………………………………………………
Package Contents ……………………………………………………………………………
Product Features …………………………………………………………………………...
Specifications ……………………………………………………………………………….
Safety Precautions ……………………………………………………………………………
Front Panel Functional Description ……………………………………………………….
Connect to Audio Equipment ………………………………………………………………...
Connect to Headphones ……………………………………………………………………...
Basic Operation ……………………………………………………………………………….
Warranty Service
Maintenance ………………………………………………………………………………...
Troubleshooting …… ……………………………………………………………………….
How to Install Vacuum Tubes…………………………………………………………………
………………
……………………………………………………………………………
12
13
14
15
16
17
18
19
20
20
21
22
23
24
24
25
26
12
Page 17
Notice:
This amplifier is designed, optimized and manufactured by factory designated components.
Cayin reserves the right to void the warranty of the product in case of unauthorized repair,
modification or change to the product, and we shall not responsible to any failure or damage
caused by replacement of non-designated components.
Please place the box in upright position according to the marking of the package. Please
examine the product package before you open it, the package should be free from any
physical damage or water stain. You should find the following items when you open the
package:
1. Un plug the pow er cord if you are not go ing to use th e amplifier for an exten ded
perio d of time , and keep the m achine in pr oper co ndition.
2. Tube amp lifier w ill buil t-up its operati on tempe ratur e after long hou rs of op eration.
Pleas e keep the am plifier at a well-ven tilat ed env ironment and do not co ver th e
ampli fier o r bloc ked the vents. P oor ve ntilatio n will l ead to e xcessive ly high
opera tion te mperatur e and can caus e malfu nction or fi re.
3. To av oid da magin g the amplif ier, you must co nnect a source de vice to the input
termi nals be fore you sel ect that as th e activ e input of you r HA-2A.
4. To avoid d amaging the amplifi er, shor t ci rcuit a mong th e ou tput te rmina ls are strictl y
forbi dden.
5. Do not attempt to servi ce thi s prod uct yo ursel f. Ope ning t he cover may ex pose y ou
to elec tric sh ock or other h azards.
6. Do not attemp t to disassemb le the machine . Ca yin res erves the right to void the
warra nty of the pr oduct in case of u nauth orized repair, modifica tion or c hange t o the
produ ct. All ser vice an d maint enanc e must be con ducte d by author ized se rvice
techn ician .
7. Th e am plifier must be keep awa y fr om w ater drippin g or wat er s plitting , do not pla ce
any obj ects fi lled
with li quids s uch as vases o r some other s on the to p or around th e amplifie r.
8. Pl ease disco nnect p ower ca ble before y ou atte mpt to cl ean the m achin e. Please use
soft clean cloth t o wipe clean the cha ssis, d o not use volati le solu tion or corros ive to
clean p roduc t.
9. Pl ease handl e with care, a void te mpering to t he mach ine.
◆ To reduce the risk of electric shock, do not remove
the cover.
CAUTION
RISK OF E LECTRIC SHO CK
DO NOT OPE N
◆ 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.
This symbol warns the users that uninsulated voltage within the unit may be sufficient
to cause electrical shock. It is dangerous to make any kind of contact with any part
inside the unit.
This symbol alerts the users that important information concerning the operation and
maintenance of this unit has been provided. The information should be read carefully
to avoid problems.
16
Page 21
● Front Panel Functional Description ---------------------------------------------
Polarity Diagram for 6.35mm
POWER
Headphone Jack.
4.4 BAL.
ON
OFF
1
STD
2
LM H
4PIN BAL .STD
IMPEDAN CEPHONES
4.4 BAL.
4PIN BAL.
43
5
6
7
XLR RCA
8
SOURCES
VOLUME
MINMAX
HEADPHO NEAMPL IFIERH A-2A
119 10
Polarity Diagram for 4.4mm
Balanced Headphone Jack
Polarity Diagram for 4 PIN XLR
Balanced Headphone Jack
L+
L-
R+
R-
Diagr am 1:HA-2 A Front Panel
①.Power On/Off: Turn on and off the
amplifier.
②.Headphone Output Selector: With the
switch you can select the suitable type of
headphone output. HA-2A offers three
types output.
③.STANDARD: Output for headphones
terminated in 6.35mm TRS connector
④.4.4 BalanceOutput:4.4balance
output for headphone terminated in
4.4mm connector.
⑤.4PIN BALANCE: Output for headphones
terminated in 4pins XLR connector
IMPEDANCE: Select the most desirable
⑥.
impedance-matched output from the
amplifier and three options offered:
(L:8~64Ω; M:65~250Ω; H: 251~600Ω)
⑦.VU Meter: Monitor output level of the
amplifier
⑧.VU Meter Backlight Turn on the Amplifier
and the Blacklight will light up.
:
⑨.SOURCES: Select Balanced or Single-
ended Input
⑩.Volume LevelIndicator (Operation
Indicator):Used to indicate the volume
position. Once powered on the indicator will
light up after soft-start of 60 seconds.
⑪ Volume Knob
.
Used to control volume
Attention:
If your want to connect a 3.5mm terminated headphone to the amplifier, you need a 3.5mm to 6.3mm
◆adapter (not included in the package).
◆Listening through headphones at a high volume for extended periods of time can result in hearing impairments.
● Connect to Audio Equipment ----------------------------------------------------
This section will illustrate how to connect audio equipment to the HA-2A amplifier.
Conne ct to the
Conne ct to HA-2A
Headp hone Amplif ier.
Analo g Output.
L
R
R
L
L
R
Conne ct to
R
L
SOURCE S
XLR
RL
RCA
RL
1:G 2:+ 3:-1:G 2:+ 3: -
ANALOG OU T
RL
RCA(A)
G
1:
+
2:
-
3:
RL
XLR(B)
ZHUHAI SPARK E LECTR ONIC EQ UIPME NT CO., LT D.
SS
AUDIO D/ACO NVERTE R
USB-PC
G
1:
+
2:
-
3:
MODEL: iDAC- 8
AES/EBUCO AXIAL 1COAXIAL 2OPTICAL
HEADPHON E AMPLIF IER
MODEL: H A 2 A-
SER.NO .:
ZHUHAI SPARK E LECTR ONIC EQ UIPME NT CO., LTD .
AES/EBU
OPTICAL
SER.NO.:
DIGITAL OUT PUT
2
IS /DSD
CAUTION
RISKOFELECTRICSHOCK
DONOTOPEN
DIGITAL IN
2
IS /DSD
AC INPUT
~230V 50 Hz 60W
T500 AL25 0Vm
~230V 50/ 60Hz 35 W
T0.5AL2 50V
USB
COAXIAL 1COAX IAL 2
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
~230V 50/ 60Hz 20 W
T0.5AL2 50V
HA- 2A
iDA C-8
Power S ocket.
LAN
ZHUHAI SPARK E LECTR ONIC EQ UIPME NT CO., LT D.
DIGITAL AUDIO P LAYER
MODEL: iDAP- 8
SER.NO.:
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.
USA System
a. :
①PIN1:GND;
②PIN2:HOT;
③PIN3:COLD
HOT
3. This amplifier uses the USA System.
②
③
COL D
GND
①
European System
b. :
①PIN1:GND;
②PIN2:COLD;
③PIN3:HOT
COL D
GND
①
②
③
HOT
If the XLR balance connector is used by
European system, the restored signal of
pre-amplifier or main amplifier will be
inverse. Therefore, please setup the correct
phase in advance.
21
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
iDA P-8
Atten tio n to Audio C onn ect ion:
1. Ple ase refer to the ma nua l of associated
equip men t whenever nece ssa ry.
2. Do no t connect the pow er co rd until all
equip men t are properly co nne cted
3. “R” in dic ates the right ch ann el;
“L” ind ica tes left channe l.
4. Ple ase make sure all c onn ectors are
secur ely i nstalled. Bad c onn ection
might c aus e noise and degra de in a udio
perfo rma nce, or even dama gin g your
equip men t.
5. Ple ase do not tie the po wer c ord, audio
inter con nects, and spea ker
Wrong connection
cable t oge ther or run them in
paral lel b ecause this wil l
produ ce ad verse effect on
audio p erf ormance.
Right connection
Note: P lea se make sure + and -, l eft a nd
right a re co nne cted prope rly.
Page 26
● Connect to Headphones ----------------------------------------------------------
Selec ting He adphone Co nnection
HA-2A pr ovide d three type s of headpho ne outp ut: 4-pins X LR for balan ced, 4. 4mm
Balan ced ,6. 35mm for sin gled-end , we have o ptimized t he headpho ne ampl ifier to
perfo rm sati sfactory f or all outpu ts, use r are free to us e any headph one out put
accor ding to t heir need wi thout worr ying on e is better th an the other.
Singl e-end ed He adpho ne Connect ion
HA-2A pr ovide s one set of 6.3 5mm headph one out put,
the pin d efini tion of the he adphone co nnect or is as illus trated.
Headp hones t erminate d with 3.5mm c onnec tor will req uire a 3.5mm
to 6.35 mm adap ter in order t o use it with th is head phone ampl ifier.
4.4mm B alanc ed Headpho ne Connect ion
HA-2A pr ovide s one set of 4.4 mm headpho ne outp ut, the pin
defin ition o f the headph one connec tor is as i llustrat ed.
Headp hones t erminate d with 2.5mm c onnec tor will req uire a 2.5mm
Polarity Diagram for 6.35mm
Headphone Jack.
Polarity Diagram for 4.4mm
Balanced Headphone Jack
L+
L-
R+
R-
to 4.4m m adapt er in order to u se it with thi s headp hone ampli fier.
XLR Bal ance He adphone Co nnection s
HA-2A pr ovide o ne set of 4-pi n XLR headph one out put, the pin
Polarity Diagram for 4 PIN XLR
Balanced Headphone Jack
defin ition o f the XLR conn ector is as il lustr ated.
Headp hones t erminate d with dual XL R (3-pi ns), 4.4mm o r 2.5mm
balan ced hea dphone con nectors wi ll requ ire corres ponding XL R4
adapt er in ord er to use it wit h this headp hone am plifier.
IMPED ANCE ma tched outp ut
Headp hones a re current ly availab le from 8 Ω to 600Ω, in vi ew of this wid e range o f
imped ance ra ting, HA-2 A provides th ree set s of impedan ce matched o utput s
(L:8~ 64Ω; M: 65~ 250Ω; H : 251~600Ω ) to ensu re the headp hone ampli fier ca n handle
vast va riety o f headphon es satisfa ctory.
We recomme nd user s to start wit h the output s ettin g that match t he impedan ce rati ng
of your h eadph one.
It is tec hnica lly safe to se lect any imp edanc e setting fo r your headp hone. You c an try
other i mpeda nce settin g without wo rryin g causing an y damage to yo ur head phone.
Attention:
Balan ced hea dphones ca n convert in to sing le-ended h eadphone w ith app ropriate
◆
conve rter an d use the 6.35 mm headpho ne outp ut.
◆Singl e-end ed headpho ne cannot us e an adap ter to plug in to the XLR4 ba lance d
headp hone ou tput of the HA -2A, it can ca use dam age to your he adphone an d/or
headp hone am plifier.
◆Tur ning the vol ume to th e minimum wh en you ex change the H eadphone .
Please make sure all connections are correct and power supply voltage is stable before turn
on the amplifier.
1. Turn on the Amplifier and the VU Meter will light up.
2. In about 60 seconds after the soft-start the Volume Level Indicator will light up steadily and
then the Amplifier is ready for operation. If the Volume Level Indicator does not light up the
Amplifier is malfunction. Please turn off the amplifier and contact your local dealer for
service support.
3. The tubes regulated power supply might require around 30-60 seconds to ramp up the
voltage gradually, it is normal if you heard ting-ting noise from your headphone or speaker
during this time.
4. The vacuum tube might require 10 minutes of warm up before they reach optimum
performance.
5. Select your input source: XLR for balanced input, RCA for single-ended input.
6. If you are using single-ended headphone, insert the 6.35mm connector of your headphone
into the STANDARD headphone output on the front panel. Switch the headphone output
selector (PHONES) to STD.
7. If you are using a 4.4mm balanced headphone, insert the 4.4 connector of your headphone
into the 4.4 BALANCE headphone output on the front panel. Switch the headphone output
selector (PHONES) to 4.4 BAL.
8. If you are using a 4pin XLR balanced headphone, insert the XLR4 connector of your
headphone into the 4 PIN BALANCE headphone output on the front panel. Switch the
headphone output selector (PHONES) to 4 PIN BAL.
9. Select the appropriate output (L, M, or H) on the IMPEDANCE switch according to the
specification of your headphone for optimized performance.
10. Adjust Volume to appropriate level and enjoy your music.
Attention:
Pleas e do not di sconnect y our interc onnec t when the amp lifier is op erati ng, this
◆
might c ause da mage to the am plifier or a ssoci ated equip ment
◆You ca n swap he adp hones d uring play back, b ut to avoid da maging you r sensi tive
headp hone an d protect yo ur hearing , pleas e turn the vol ume down to 0 wh en you
unplu g or plug i n another pa ir of headph one.
◆If you ha ve turn o ff th e amplifie r, please wai t 2 minut es before yo u turn it on aga in,
1.The Product is warranted for a period of twelve (12) months from the date of original
purchase (the “Warranty Period”). Replacement Products are warranted for the
remainder of the original twelve (12) month warranty period. Six-month warranty on
stock vacuum tubes.
2.The defective product must be returned to our authorized agent or Zhuhai Spark
Electronic Equipment Co., Ltd (the “Company”) for service. You must receive approval
from our authorized dealer or the “Company” before you send out the defective product.
3.Do not attempt to disassemble the machine without prior approval of the “Company”
otherwise we reserves the right to void the warranty of the product
Read the Manual: to operate the amplifier correctly, please read this user's manual carefully
to understand product features and safety precaution .
Keep the Manual: Please keep this manual properly for future reference.
Signage: Do not tear off or rub away the serial number.
Operation: Please follow the operations in this manual strictly.
Accessories: If you are going to use non-factory supplied accessories such as power cord
or fuse, please make sure they are fully compatible with the safety requirements otherwise
might cause damage due to improper usage.
Placement: The amplifier is heavy and the vacuum tubes are fragile, please place the
amplifier on a stable, flat surface, preferably a strong cabinet or rack. If the amplifier falls
down because of insecure placement, the amplifier will suffer damage and possibly causing
serious household accident.
Power Supply: Please make sure your household AC power supply matches the power
requirement of your amplifier. If you are uncertain about the power supply situation, please
contact your authorized dealer or local power supply institutions.
Overloading: If you have to connect the amplifier to a power stripe or multi-socket, please
make sure the loading is within safety consideration. Overloaded power connection might
lead to electric shock or fire accident.
Warranty Service: Do not attempt to disassemble the machine or modify the component,
this will void the warranty service and might exposure yourself to electric shock.
Troubleshooting: If you encounter any abnormal behavior during setup or playback, please
refer to the advices in next pages of this manual to recover your amplifier back to normal
operation. If you fail to rectify the problems after that, please contact your authorized dealer
for technical support.
24
Page 29
Problem
Cause
Solutio n
No
Sound
after
power
on
VU Meter
does not
light up.
Power i s not c onnected
Conne ct th e power cord secu rel y.
Check t he ma in power supply.
Main fu se is o ut.
Repla ce fu se with same spec ifi cation
VU Mete r
light s up.
NO inpu t sig nal .
Check s our ce equipment is w ork ing
Selec t inp ut source corre ctl y
Volume a t min imum position
Tur n up vo lume
Inter con nect not proper ly
conne cte d
Conne ct al l cables secure ly
Headp hon e cable not
prope rly c onnected
Conne ct he adphone cable p rop erly
Headp hon e output not
speci fie d correctly
Selec t hea dphone output c orr ectly
Sourc e Sel ector wrong
Selec ted
Selec t the c orrect Source I npu t.
Exces siv e noise
Input s our ce wrongly
conne cte d
Insta ll in terconnect pr ope rly
Inter con nect groundin g
disco nne cted
Repla ce in terconnect
Equip men t malfunction
Conta ct au thorized deal er fo r
techn ica l support
Sound sta ge and
imagi ng no t focused
Left an d rig ht channel of
sourc e equ ipment revers ed
Please follow the instruction in the manual in order to keep the amplifier under proper
working condition. If the amplifier is not functioning as intended, please check according
to following tip to look for the possible reason.
25
Page 30
● -----------------------------------------------------How to Install Vacuum Tubes
How to Ins tal l 9-P in Vacuum Tub es
Pin N o. 9
Applicable vacuum tube:
12AU7(ECC82)、12AX7(ECC83)、ECF82、6U8、12BH7、
12AT7(ECC81)、6922(ECC88) etc. 9-Pin vacuum tubes.
Ins truct ions to Chang e and In stall the vac uum tu bes:
To ins tall a nin e-pin vacuum tub e, al ign t he pi ns of the
Pin N o.1
vac uum tub e with th e hole s of the tu be sock et and
ins ert th e tub e vert ical ly up and do wn (as show n in t he
fig ure abo ve).
Please not e th at when ins tal ling the nine-p in
vacuum tu be, pa y atte nti on to the align ment of the
vacuum tub e pins wit h the hole s of the tub e s ock et.
Oth erw ise wrong ins erti on will cau se dam age to the
vacuum tub e a nd prev ent the ampl ifi er from wor king
proper ly, whi ch ma y lead t o fai lure o f the a mpli fie r.
How to Ins tal l 12- Pin Vacuum Tu bes
Pin N o. 12Pin N o.1
Applicable vacuum tube: 17BF11、17BF11A etc. 12-Pin
vacuum tubes.
Ins truct ions to Chang e and In stall the vac uum tu bes:
To install a twel ve-pi n vac uum tu be, a lign t he pi ns of the
vac uum tu be wit h the holes of the tube socke t and i nsert
the tube verti cally up and down (as shown in the figu re
abo ve).
Ple ase no te that wh en in sta llin g th e twe lve- pin
vac uum t ube, pay att enti on to t he a lign ment o f th e
vac uum tub e pins with t he hol es of th e tube s ocke t.
Oth erwis e wron g ins erti on wi ll cau se dam age t o the
vac uum tub e and p reve nt the a mpl ifie r from w ork ing
pro perly, w hich m ay lead t o failu re of the a mplifier.
How to Ins tal l 8-P in Vacuum Tub es
Pos ition ing Pin
App licab le vacu um tube :
KT1 50、KT17 0、KT88、65 50、EL34、6 V6、6SN7、
6SL 7、5AR4、17 AX4GT , etc. 8- pin vac uum tub es.
Ins truct ions to Chang e and In stall the vac uum tu bes:
To inst all an eigh t-pin vacuu m tub e, ali gn the posi tioni ng
pin of th e tu be wi th t he g roove s in the p ositi oning holes
of t he tu be so cket, and in stall the t ube b y pul ling up and
dow n verti cally ( as show n in the fi gure a bove) .
Ple ase no te t hat w hen i nst alli ng th e ei ght- pin v acu um
tub e, pay att enti on to the alig nmen t of th e va cuum tube
pos ition ing pi n wit h the p osit ion ing h ole o f the t ube
soc ket. O ther wise wron g ins erti on wi ll cau se da mage to
the vacu um tu be an d prev ent t he am plif ier f rom wo rking
pro perly, w hich m ay lead t o failu re of the a mplif ier.
How to Ins tal l Big 4 -Pin Vacuu m Tube s
Pos ition ing Pin
Pos ition ing Pin S lot
App licab le vacu um tube : 845、805、2 11 etc . 4-p in
vac uum tub es.
Ins truct ions to C hange a nd Inst all th e vacuu m tubes :
To i nsta ll th e b ig fo ur-p in vac uum tube, al ign t he
vac uum tube posi tion ing pin with posi tion ing pin slot of
the tube s ocke t and t hen ro tate 4 5° cl ockw ise to t ight en.
(As s hown i n the pic ture a bove ). To take o ut the b ig fou rpin v acuu m tube , turn th e tube 4 5° cou nter cloc kwis e
and t ake it o ut upw ard aft er loo seni ng.
Please note that when inst alling t he big f our-pin v acuum
tube, pay attentio n t o the alignmen t o f the vacuum tube
positi oning pin wit h posit ioning pin slo t of the tu be sock et
and th en rota te 45° clockw ise to tighte n. It i s stric tly
forbid den to install the v acuum t ube wh en the positionin g
pin is off or miss ing. Oth erwise wrong insertion will c ause
damage to the vacuu m tube and pre vent the amp lifier fro m
workin g properly, whic h may lead to fai lure of the amp lifier.
26
Page 31
Page 32
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