Audio Hungary Qualiton A20i User manual

Qualiton A20i User’s Manual

CONTENTS
IMPORTANT SAFETY INSTRUCTIONS.................................................................................................................................................... 2
MARKINGS.......................................................................................................................................................................................................5
PREFACE...........................................................................................................................................................................................................6
CONTENTS OF PACKAGE............................................................................................................................................................................7
TECHNICAL SPECIFICATION...................................................................................................................................................................... 8
FRONT PANEL...............................................................................................................................................................................................10
REAR PANEL..................................................................................................................................................................................................11
REMOTE CONTROL.....................................................................................................................................................................................12
INSERTING / REPLACING BATTERY......................................................................................................................................................12
BEFORE FIRST USE .....................................................................................................................................................................................13
VACUUM TUBES LAYOUT..........................................................................................................................................................................15
PLACEMENT..................................................................................................................................................................................................16
INSTALLATION / CONNECTIONS............................................................................................................................................................18
CONNECTION DIAGRAM...........................................................................................................................................................................19
OPERATION - SAFETY RECOMMENDATIONS ....................................................................................................................................20
STATUS INDICATION...................................................................................................................................................................................22
REMOTE CONTROL STATUS INDICATION...........................................................................................................................................22
INSTALLING A NEW REMOTE CONTROL.............................................................................................................................................23
TROUBLESHOOTING ..................................................................................................................................................................................24
REPLACEMENT OF FUSE .........................................................................................................................................................................27
WASTE MANAGEMENT.............................................................................................................................................................................28
WARRANTY....................................................................................................................................................................................................29

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IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT!
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
(including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding
prong. The wide blade or the third prong are provi-
ded for your safety. If the provided plug does not
t into your outlet, consult an electrician for replac-
ment of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptac-
les, and the point where they exit from the appara-
tus.

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IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT!
11. Only use attachments/accessories specied by
the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or
table specied by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms
or when unused for long periods of time.
14. Refer all servicing to qualied service personnel
Servicing is required when the apparatus has been
damaged in any way, such as power supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
15. Do not expose this equipment to dripping or
splashing and ensure that no objects lled with
liquids, such as vases, are placed on the
equipment.
16. To completely disconnect this equipment from
the AC mains, disconnect the power supply cord
plug from the AC receptacle.

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17. The mains plug of the power supply cord shall
remain readily operable.
18. Do not expose batteries to excessive heat such
as sunshine, re or the like!
19. Connect mains power supply cord only to a
mains socket outlet with a protective earthing con-
nection.
20. WARNING! To reduce risk of re or electrical
shock, do not expose this equipment to rain or
moisture!
21. CAUTION! To reduce the risk of electric shock,
do not remove cover!
22. No user-serviceable parts inside. Refer servicing
to qualied service personnel.
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT!

- 5 -
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and maintenance
instructions in the literature accompanying the appli-
ance.
CAUTION: Hot Surface! Do Not Touch!
Protective cover of the product may become
hot when operating this product continuously.
The crossed-out wheeled bin is the Europe
an Union symbol for indicating separate col-
lection for electrical and electronic equipment. This
product contains electrical and electronic equipment
which should be reused, recycled or recovered and
should not be disposed of with unsorted regular
waste. Please return the unit or contact the autho-
rised dealer from whom you purchased this product
for more information.
The product meets the relevant directives
and standards of the European Union.
Supplied with alternating current (AC).
115 V / 230 V Nominal supply voltage.
50 Hz / 60 Hz Nominal supply frequency.
MARKINGS

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Before installing the integrated stereo amplier
Qualiton A20i, please study this user manual care-
fully!
Operating your power amplier 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

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!
-1 pc Qualiton A20i stereo amplier
-1 pc User’s Manual
-1 pc standard mains cable
-1 pc remote control
-1 pc torx wrench (TX10)
CONTENTS OF PACKAGE

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RATED OUTPUT POWER
2 x 20 W, stereo
TOTAL HARMONIC DISTORTION
< 0.3% (f = 1 kHz, rated output power)
FREQUENCY RESPONSE
25 Hz - 100 kHz (-3 dB, rated output power)
INPUT SENSITIVITY
230 mV, unbalanced input
NUMBER OF INPUT PORTS
3 unbalanced inputs per channel
NUMBER OF OUTPUT PORTS
1 output terminal pair per channel
GAIN
+34.8 dB
INPUT IMPEDANCE
10 kΩ
NOMINAL LOAD IMPEDANCE
8 Ω
OUTPUT POLARITY
non-inverting
SIGNAL-TO-NOISE RATIO
> 90 dB; output noise less, than 1 mV
VACUUM TUBES REQUIRED
4 x 5881; 2 x E88CC/6922; 2 x ECC83
TECHNICAL SPECIFICATION

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POWER REQUIREMENTS
The Qualiton A20i is factory congured for one of
the following AC Voltages:
~ 115 V/60 Hz at 4.0 Amps
~ 230 V/50 Hz at 2.0 Amps
Maximum 150 Watts
PROTECTION CLASS
The unit is of Class 1 construction and must be
connected to a mains socket outlet with a protec-
tive earthing connection.
WEIGHT
16 kg
DIMENSIONS
27 x 18 x 30 cm
TECHNICAL SPECIFICATION

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

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1 62 7 8
543
REAR PANEL
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 holder
8AC inlet
Input (3 RCAs placed
horizontally) Right side (R)

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INSERTING / REPLACING BATTERY
PLEASE NOTE: A20i’s remote control comes without
battery. The remote control operates with type A23
battery. Battery should be installed by the user before
rst use:
1. Unscrew the screws on the back (a., b., c.) with the
torx wrench, included in the package, then remove the
cover! (d.)
2. Insert an A23 battery, as shown in the
diagram!
3. Put back the cover and fasten it tightening the
screws!
volume
mute
234
1
1
2
Communication indicator LED
Volume UP
4MUTE
3Volume DOWN
REMOTE CONTROL

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BEFORE FIRST USE
Qualiton A20i amplier is shipped with the vacuum
tubes packed in foam blocks. These must be un-
packed and installed before you attempt to operate
the amplier.
Follow these instructions for removal of the packing
foam before connecting the AC power supply cord to
the Qualiton A20i.
Failure to do so has the potential of a Fire Hazard,
resulting in damage to the Qualiton A20i and the sur-
rounding environment.
Included tubes are: 4 x 5881 (matched quad);
2 x E88CC/6922; 2 x ECC83.
T X 10
1.
a.
b.
c.
d.
a.
b.
c.
d.
2. 3.
INSERTING / REPLACING BATTERY

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T X 10
a.
b.
c.
d.
T X 10
1 2
BEFORE FIRST USE
1. Unscrew the marked sc-
rews with a TX10 wrench.
2. Remove the protective
cover in the indicated
direction!
3. Remove packing foam
under protective cover and
store with other packing
materials.
4. Carefully remove each
vacuum tube from its pro-
tective foam.

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VACUUM TUBES LAYOUT
5881 5881 5881 5881
E88CC E88CCECC83ECC83
BEFORE FIRST USE
5. Follow the layout shown in the gure below to
place the tubes correctly.
6. Firmly seat each tube in its matching socket,
taking care to ‘key’ the tube pins to the socket holes.
Retain the foam blocks with other packing materials
for possible future use.
7. After placing the protective cover back, fasten it
with the screws.

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PLACEMENT
IMPORTANT! Due to the vacuum tube construction
of the amplier, it may heat up during use. Thus,
choose a location for installation where the applian-
ce can be well ventilated!
The ventilation holes of the amplier must not be
covered (by tablecloth, curtain, newspaper, book,
etc.)! Impairing ventilation can lead to overheating
and irregular operation conditions!
Do not stack multiple units on top of each other.
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-
lier into operation!
The aforesaid applies to the very rst installation
of the amplier as well. Prior to the rst installa-
tion, leave the amplier at its place of operation at
least for 2 hours. Once this time is over, the amp-
lier can be powered up!
The appliance is designed for indoor use. Do not
operate it in wet, humid surroundings!

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PLACEMENT
Do not store any electrical device or object in a pe-
rimeter of 200 millimetres around your amplier!
Do not use the appliance next to heating sources
and radiators! Keep it away from hot or dusty en-
vironment and ame!
200 mm
200mm 200mm

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Appliance can operate at 60 Hz with 115 V AC line
voltage, or at 50 Hz with 230 V AC line voltage. The
standard IEC power inlet with fuse holder are placed
on the rear panel.
The amplier must be connected to a mains socket
outlet with a protective earthing connection.
The appliance can be operated safely only with the
supplied mains cable.
Make sure that cables connecting the amplier to
the speakers as well as cables connected to the
ports of the amplier can be effortlessly connected!
The amplier can be connected to an audio system
through RCA ports placed at the rear panel.
According to the nominal impedance of the spea-
kers used, the amplier outputs are speaker termi-
nals marked 0 Ω and 8 Ω.
With the input selector rotary switch, the chosen
input source can be activated. The activated source
is indicated by one illuminated led, from the left to
the right in order: LINE 1; LINE 2; LINE 3.
Never operate the amplier without a sufcient
load!
Do not power up the amplier until correct loads
(8 Ω, marked on the amplier) are connected to the
output terminals.
INSTALLATION / CONNECTIONS

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CD PLAYER
(OPTIONAL)
MAGNETOFON
(OPTIONAL)
TURNTABLE
(OPTIONAL)
MM PICKUP
TURNTABLE
(OPTIONAL)
MC PICKUP
qualiton A20i
POWER SUPPLY (OPTIONAL) qualiton PHONO RIAA (OPTIONAL)
Q40-S (OPTIONAL)! Q40-S (OPTIONAL)!
CONNECTION DIAGRAM