Audio Hungary Qualiton A20i User manual


Introduction
Thank you for purchasing a qualiton A20i power amplifier!
It is designed to deliver a high standard of musical performance. The
innovation in engineering and manufacturing this product guarantees
amusement for a long time, thanks to the output transformer made by
us.
We wish you many pleasant hours of musical experience with your
qualiton A20i!

CONTENTS
PREFACE .............................................................................................................................................. 2
CONTENTS OF PACKAGE................................................................................................................. 3
TECHNICAL SPECIFICATION ........................................................................................................... 4
FRONT PANEL CONTROLS............................................................................................................... 5
REAR PANEL TERMINALS ................................................................................................................ 6
INSTALLATION.................................................................................................................................... 7
SAFETY RECOMMENDATIONS - PLACEMENT ............................................................................ 8
SAFETY RECOMMENDATIONS - OPERATION.............................................................................. 9
FIRST INSTALLATION........................................................................................................................ 11
CONNECTING...................................................................................................................................... 12
STATUS INDICATION ......................................................................................................................... 13
REMOTE CONTROL STATUS INDICATION .................................................................................... 13
REMOTE CONTROL............................................................................................................................ 14
REPLACEMENT OF BATTERY.......................................................................................................... 14
VACUUM TUBES ................................................................................................................................. 15
TROUBLESHOOTING ......................................................................................................................... 18
MARKINGS........................................................................................................................................... 20
WASTE MANAGEMENT .................................................................................................................... 21
WARRANTY ......................................................................................................................................... 22
DECLARATION OF CONFORMITY................................................................................................... 23

- 2 -
Before installing the integrated stereo amplier
qualiton A20i, please study this user manual care-
fully!
Operating your power amplier in a manner it is de-
signed for ensures you an utmost musical experien-
ce and a reliable operation.
If you have any questions on our products or servi-
ces, please do not hesitate to contact us on our
website www.audiohungary.com
PREFACE

- 3 -
LINE 1
L8 0 0 8
RIGHT LEFT
LINE 2 LINE 3
!
T 2.0 L
qualiton A20i - 2x20W INTEGRATED STEREO AMPLIFIER
INPUT
230V/50Hz
MAX 150W
-1pc qualiton a20i stereo amplier
-1pc user manual
-1pc standard mains cable
-1pc remote control
-1pc torx wrench (TX08)
-1pc A23 battery
CONTENTS OF PACKAGE

- 4 -
NOMINAL OUTPUT POWER
2 x 20 W, stereo
TOTAL HARMONIC DISTORTION
< 0.3 % (measured by 1kHz sine wave - nominal output power)
FREQUENCY RESPONSE
25 Hz - 100 kHz (-3 dB, nominal output power
INPUT SENSITIVITY
230 mV, asymmetrically
GAIN
+34.8 dB
INPUT IMPEDANCE
10 kΩ
NOMINAL LOAD IMPEDANCE
8 Ω
OUTPUT POLARITY
non inverting
SIGNAL-TO-NOISE RATIO
> 90 dB
POWER CONSUMPTION
150 W
VACUUM TUBE SET
4 x 5881; 2 x E88CC; 2 x ECC83
WEIGHT
16 kg
TECHNICAL SPECIFICATION

- 5 -
3
1 2 4 5
FRONT PANEL CONTROLS
1
2
3
4
Main switch on the side of appliance
Input selector rotary switch
Volume control
Status indicator led
5Leds indicating active input

qualiton A20i
- 6 -
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
LINE 1
L
R
8 0 0 8
RIGHT LEFT
LINE 2 LINE 3
!T 2.0 L
qualiton A20i - 2x20W INTEGRATED STEREO AMPLIFIER
INPUT
OUTPUT
230V/50Hz
MAX 150W
1 62 7 8
543
REAR PANEL TERMINALS
1Inputs (3 RCAs placed
horizontally) Left side (L)
2
3
Output - Right side (0 Ω)
4
Output - Right side (8 Ω)
5Output - Left side (0 Ω)
6Output - Left side (8 Ω)
7Built-in fuse box in the AC socket
8AC socket
Input (3 RCAs placed
horizontally) Right side (R)

qualiton A20i
- 7 -
- Due to the vacuum tube construction of the amplier,
the it may heat up during use. Thus, choose a loca-
tion for installation where the appliance can be well
ventilated!
- Make sure that cables connecting the amplier to the
speakers as well as cables connected to the ports of
the amplier can be effortlessly connected!
- Appliance can only operate with 50 Hz frequency and
230V AC voltage! The standard AC socket and the
fuse box are placed at the rear panel.
- Never operate the amplier through an ungrounded
outlet!
- The amplier can be connected to an audio system
through RCA ports placed at the rear panel.
- According to the nominal impedance of the speakers
used, the amplier outputs are speaker ports marked
0 Ω and 8 Ω.
- With the input selector rotary switch, the chosen input
source can be activated. The activated source is indi-
cated by one illuminated led, from the left to the right
in order: LINE 1; LINE 2; LINE 3.
- Never operate the amplier without a sufcient load!-
Do not power up the amplier until correct loads (8 Ω,
marked on the amplier) are connected to the output
ports!
INSTALLATION

!
!
- 8 -
200 mm
200mm 200mm
- Avoid relocating the appliance from cold to warm
surroundings! Sudden temperature changes can
lead to moisture condensation. Please wait until
moisture is evaporated before putting your amp-
lier into operation!
- The aforesaid applies to the very rst installation
of the amplier as well. Prior to the rst installa-
tion, leave the amplier at its place of operation at
least for 2 hours. Once this time is over, the amp-
lier can be powered up!
- The appliance is designed for indoor use. Do not
operate it in wet, humid surroundings!
- Do not store any electrical device or object in a pe-
rimeter of 200 millimetres around your amplier!
- The ventilation holes of the amplier must not be
covered (by tablecloth, curtain, newspaper, book,
etc.)! Impairing ventilation can lead to overheating
and irregular operation conditions!
- Do not use the appliace next to heating sources
and radiators! Keep it away from hot or dusty en-
vironment and ame!
SAFETY RECOMMENDATIONS - PLACEMENT

!
qualiton A20i
!
- 9 -
- Improper installation may cause breakdown!
- Before powering up your amplier, make sure
cover, ports, plugs and cables are checked for in-
tactnesss!
- You must not start up damaged or faulty applian-
ce. In case of any malfunction, unplug your amp-
lier immediately!
- Components must not be changed or repaired by
the user. In case of a malfunction, the cover must
not be opened or removed!
- In case of an emergency, unplug your amplier
immediately!
- In case of a faulty operation, contact our service!
- Improper repair may lead to a loss of warranty!
- The appliance may only be used by qualied
adults or children above 14 years of age if super-
vised by a qualied adult!
- Keep the appliance out of the reach of children!
- Make sure your domestic animal does not lie or
sit on the top of the appliance!
- Irrespective of protection circuits built in in your
amplier, always make sure it is connected and
operated in a proper manner!
SAFETY RECOMMENDATIONS - OPERATION

!
!
- 10 -
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
LINE 1
L
R
8 0 0 8
RIGHT LEFT
LINE 2 LINE 3
!
T 2.0 L
qualiton A20i - 2x20W INTEGRATED STEREO AMPLIFIER
INPUT
OUTPUT
230V/50Hz
MAX 150W
- At the mains cable and output ports, there is a
risk of electric shock! They must be handled with
care!
- If you do not use your amplier for a long time,
unplug the appliance carefully!
- Do not block the openings of your amplier since
this may lead to re or electric shock!
- The protection rating of this appliance is IP20.
This means the appliance is protected from solid
objects larger than 12 millimetres. However, it is
not protected from moisture!
- Operation voltage is 230V AC, operation frequ-
ency is 50 Hz!
- Never operate the amplier through an ung-
rounded outlet!
- The AC socket features a built-in fuse box. En-
sure replacement fuses with rating T 2.0 L (type
time-delay)!
SAFETY RECOMMENDATIONS - OPERATION

!
qualiton A20i
!
- 11 -
- Be careful with appliance cables! Do not lead them
across sharp surfaces, do not clam them together
and do not leave them in a hanging position!
- You must not operate the appliance with damaged
cables!
- In case of re, you must not use water to extinguish
the re, even if the amplier is powered down!
- Never touch the appliance or its mains cable with
wet hands!
- Clean the appliance with a dry cloth while it is un-
plugged!
- Never operate the amplier without a sufcient
load! Do not power up the amplier until correct lo-
ads (8 Ω, marked on the amplier) are connected to
the output ports!
- Connect your amplier to the other elements of
your sound system according to the connection
diagram!
- Plug in your appliance!
- Switch the main switch on the left to the position ”l”
and wait for for the LED under the volume control
to turn from red to white!
SAFETY RECOMMENDATIONS - OPERATION FIRST INSTALLATION

qualiton A20i
- 12 -
8Ω / 50W
+-
Made in Hungary
Model: SV40
8Ω / 50W +
-
Made in Hungary
Model: SV40
CD PLAYER
(OPTIONAL)
MAGNETOFON
(OPTIONAL)
TURNTABLE
(OPTIONAL)
MM PICKUP
TURNTABLE
(OPTIONAL)
MC PICKUP
SV 40 SPEAKER (OPTIONAL)!
qualiton A20i
POWER SUPPLY (OPTIONAL) qualiton PHONO RIAA (OPTIONAL)
SV 40 SPEAKER (OPTIONAL)!
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
LINE 1
L
R
8 0 0 8
RIGHT LEFT
LINE 2 LINE 3
!T 2.0 L
qualiton A20i - 2x20W INTEGRATED STEREO AMPLIFIER
INPUT
OUTPUT
230V/50Hz
MAX 150W
CONNECTING

- 13 -
- The status indication led is placed at the front
panel, under the volume control. The led can
indicate the followings:
- No illumination
Appliance powered down.
- Turning from red into white coloured light Current
ows through the vacuum tubes, according to the
anode current value set by the manufacturer.
- Continuous red light:
Appliance is muted.
- Vibrating white light
Radio communication (receiving signals coming
from remote control).
REMOTE CONTROL STATUS INDICATION
- During adjusting volume, the LED indicating
communication is illuminated white.
- After pushing the button ”mute”, the LED indi-
cating communication is illuminated red.
- Vibrating red light
Radio communication (while the amplier is
muted).
STATUS INDICATION STATUS INDICATION

- 14 -
REPLACEMENT OF BATTERY
1. Unscrew the screws on the back (a.b.c.)
with the torx wrench, included in the packa-
ge, then remove the cover! (d.)
2. Insert one A23 battery, as shown in the
diagram!
3. Put back the cover and fasten it tighte-
ning the screws!
volume
mute
234
1
Should your remote cont-
rol not operate, remove its
back with the torx wrench,
included in the package,
and replace the one A23
battery!
1
2
LED indicating communi-
cation
Volume up
4Mute
3Volume down
REMOTE CONTROL

- 15 -
T X 08
1.
a.
b.
c.
d.
a.
b.
c.
d.
2. 3.
REPLACEMENT OF BATTERY VACUUM TUBES
5881 5881 5881 5881
E88CC E88CCECC83ECC83

1 2
T X 08
- 16 -
REPLACEMENT OF VACUUM TUBES
Unplug your amplier and do
not operate it at least 2 hours
before replacing tubes!
1. Unscrew the marked sc-
rews with a torx 08 wrench!
2. Remove the protective co-
ver in the indicated direction!

3 4
T X 08
qualiton A20i
- 17 -
3. Remove the vacuum tubes
carefully, then insert the repla-
cement tubes on their spots!
4. After putting back the pro-
tective cover, fasten it with
the screws!
(In the case of tube replace-
ment, before you insert non-
OEM tubes, please contact
our company and enquire
about their compatibility!)
REPLACEMENT OF VACUUM TUBES

qualiton A20i
- 18 -
Malfunction 1: Amplier does not power up.
1.a Make sure the amplier is plugged in!
1.b Be sure the main switch at the left panel is in
’I’ position!
1.c Should the fault persist after going through
points 1.a and 1.b, carefully check the mains
cable for intactness!
1.d Should the fault persist after going through
points 1.a, 1.b and 1.c, check whether the front
panel gauge illuminates red! If it does not,
check the power supply of your at!
1.e Should the fault persist after going through
points 1.a, 1.b, 1.c and 1.d, check the fuse of
the amplier for intactness, according to the
instructions stated in ’Safety Recommenda-
tions - Operation’!
1.f If the preceding points are all checked and the
amplier still does not power up (incl. the sta-
tus indicator), please contact our company!
Malfunction 2: The illumination of the status indi-
cator LED does not turn white.
2.a Should the indicator illumination not turn into
white after 60-90 seconds, please contact our
company!
TROUBLESHOOTING
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