AMC XIA30t User guide

IA
ON
OFF
PHONOCDTUNERAUX
iPod/DACVIDEO
1
4
7
2
5
8
0
3
6
9
VOLUME
CD
CDUSB24192
PLAY/PAUSE
STOP
TRK/TITLE
DIRECT
AM
FM
AUTO
MANUAL
PRESET
DAB+
SELECT
INFO
ENTER/M
RC-S8
XIA30t
XIA50
STEREO INTEGRATED
AMPLIFIER

2
The AMC remote controllable integrated
amplifiers XIA30t/XIA50 offer in an
innovative and elegant design, an
affordable combination of high quality
sound reproduction and comprehensive
facilities.
The integrated amplifier accepts five
inputs (Phono, CD, Tuner, Aux/USB and
Tape), is compatible with both moving
magnet and moving coil cartridges, has
full tape monitoring capabilities and also
both a direct switch, allowing the tone
control circuitry to be by-passed for
improved sound quality.
To get the best from your amplifier
please study this manual carefully.
Should you experience any problems,
please discuss them with your dealer
who has a full knowledge of AMC
products and their use in a variety of
systems.
INSTALLATION
Your AMC amplifier is supplied set to
work on your local mains supply
voltage.
Check that your local mains supply
voltage agrees with the voltage setting
indicated on the back panel of the
amplifier. If not, please set the AC
Select Switchon back panel to your
local mains supply voltage.
Note: All connection must be completed
and AC Select Switch should be set to
correct voltage before plugging in power
cord and turning the power on.
FUSES
If the mains plug is fused, fit a 3amp
fuse. Your AMC amplifier contains fuses
which are designed to protect the
amplifier and prevent the occurrence of
a dangerous fault condition. These
should only be inspected and replaced
by a conpetent engineer using the
correct replacement types.
*Unique phono stage design that employs
two audiophile grade op-amps per
channel that provide very low THD, TIM
and noise, together with switchable
MM/MC sensitivities.
*AMC XIA30t/XIA50 is designed with
option of USB connector for networking
to other equipments, computer, LAN and
so the Internet.
*AMC XIA30t/XIA50 creates CD quality
sound from computer and Internet
through the USB linking system
designed in AMC IA system.
*The high overload tone control stage can
be completely by-passed with the
DIRECT switch to give natural sound
quality.
*Special designed passive tone control
circuit to give natural sound quality.
*Uses audiophile grade components
throughout, providing exceptional
accuracy to phono and tone control
responses.
*High overload margin on tone control
circuit by virtue of its topologies.
*Power amplifiers with 30 Amp high peak
output current devices to offer
capabilities to drive almost all types of
speaker systems.
*Power amplifiers with special designed
perfect virtual image topology to make it
possible to be without output relays. The
topology connects amplifier outputs to
speaker systems without relay contacts
to offer best possible sound quality.
*Using high output current devices with
optimized power supply designs, the
power amplifiers can be only protected
with fuses on power supplier side in
order to delivery extremely high output
current in demand to give superb sound
quality.
*With universal power transformer passed
all international safety standards, end
users can use the unit in all countries by
re-setting the AC select to correct
voltage.
*Heavy duty gold plated speaker binding
posts and phono connectors for ultra
reliable connections.
INTRODUCTION FEATURE

t
1.PHONO GROUND TERMINAL
2.PHONO MM/MC INPUT SELECTION SWITCH
3.PHONO INPUT
4.AUX INPUT
5.TUNER INPUT
6.CD INPUT
7.TAPE INPUT & TAPE OUTPUT
8.PRE OUT/MAIN IN
9.LOUDSPEAKER TERMINALS
10.AC SELECT SWITCH
11.AC RECEPTACLE
12.USB (OPTION)
3
REAR PANEL
REAR PANEL CONNECTIONS
12
2
1
5
34
6 8 91011 7

1.POWER SWITCH
2.INFRARED RECEIVER
3.BALANCE CONTROL
4.PHONES
5.MUTE/NORMAL/DIRECT
SWITCH
6.BASS CONTROL
7.TREBLE CONTROL.
8.TAPE MONITOR SWITCH
9.INPUT SELECTION SWITCH
10.VOLUME CONTROL
FRONT PANEL
1 23 54678 9 10
1 23 54678 9 10
4
FRONT PANEL CONTROLS

5
INPUTS
All audio Inputs and tape outputs are via
gold plated RCA type phono connectors.
All the phono sockets on your AMC
amplifier are marked "L" for left and "R"
for right channels, with the left channels
nearer the top of the cabinet. Your
connection leads will have a white or
black plug for left, and a red plug for right.
1. PHONO GROUND TERMINAL
The Ground Terminal is for you to
connect ground wire of your turntable in
order to eliminate possible interference
and hum loop for best possible sound
quality.
2. PHONO MM/MC INPUT SELECTION
SWITCH
3. PHONO INPUT (OPTION COAXIAL
IN)
This input is suitable for both moving
magnet and moving coil cartridges. For
either type of cartridge the plugs on your
turntable lead should be connected to the
phono input sockets on the rear panel of
your amplifier.
A switch adjacent to the disc input
sockets allows the selection of either MM
or MC input. Facing the back of the
amplifier, move the switch to the right for
use with MM or high output MC cartridges
and to the left for use with normal(low
output) MC cartridges.
Note: Never operate the MM/MC selector
switch with the volume control turned up
as the resultant electrical surge may
damage your loudspeakers.
To minimize hum the turntable lead
should be kept away from the mains
wiring, and any separate turntable ground
lead should be attached firmly to the
earth terminal on the rear of the amplifier.
4. AUXILIARY INPUT
The Auxiliary input is suitable for use with
any extra source processing a line level
output, perhaps a second tuner or CD
player, or an additional tape or video
recorder wired for replay only.
The auxiliary input is in parallel with the
analog output of the USB connector.
5. TUNER INPUT
The Tuner input is suitable for use with
most AM/FM tuners. Connect your tuner
to the amplifier using the phono sockets
marked "Tuner".
6. CD INPUT
The CD input is suitable for use with any
CD player. Connect your CD player to the
amplifier using the phono sockets marked
"CD".
7. TAPE INPUT & TAPE OUTPUT
This input is suitable for use with most
cassette, reel to reel or video recorders.
Connect the "record" leads of your tape
recorder to the phono sockets marked
"Tape out" on the rear of your amplifier
using phono/phono leads.
Connect the "playback" leads of your tape
recorder to the phono sockets marked
"Tape in" on the rear of your amplifier
using phono/phono leads. If your tape
machine processing DIN outputs, then
DIN/phono leads, or a DIN/phono adaptor
can be used. If you experience level
matching problems when using DIN
connectors, please consult your tape
machine manufacturer.
8. PRE OUT/MAIN IN
Normally the pre-amplifier and power
amplifier sections of this unit are
connected together via factory-installed
U-shaped metal jumpers that bridge the
PRE-OUT and MAIN-IN jacks. Check to

6
be sure that they are fully inserted into
the jacks and that nothing is touching
them.
By switching OFF the power and
removing the metal jumpers, you can
connect a signal processor such as a
surround-sound decoder or an electronic
crossover in the path between preamp
and power amp. Connect a cable from
PRE-OUT to the processor's input and a
second cable from the processor's output
to MAIN IN.
9. LOUDSPEAKERS
Your AMC amplifier is designed to drive
loudspeakers with a nominal impedance
of 4-8 ohms.
LOUDSPEAKER CONNECTIONS
The loudspeaker output terminals will
accept 4mm(banana)plugs, spade
connectors, pin connectors or bare wires.
Connect the negative side(usually black)
of your left hand loudspeaker lead to the
black terminal of the two terminals
marked "left" on the rear of your amplifier.
The other side of your left hand speaker
lead (the positive side or red) should be
connected to the red terminal marked
"left". Repeat this operation for the right
hand loudspeaker.
Your AMC amplifier is capable of
generating high peak currents, so all
connections must be checked to avoid
inadvertent short circuits and to ensure a
good clean contact.
UNDER NO CIRCUMSTANCES SHOULD
THE OUTPUTS BE SHORTED TOGETHER.
Such action will damage output circuitry
and is not covered by guarantee.
HEATSINK/VENTILATION REQUIRE-
MENTS
The heat produced by your AMC amplifier
during normal operation is dissipated by
an during normal operation is dissipated
by an internal finned heatsink. It is
perfectly normal for your amplifier to
becomes quite warm and to radiate heat
when in use, especially if it is run near full
power. However, if it becomes too hot to
touch, switch off at once and contact your
dealer.
It is very important that there is adequate
ventilation for the whole of the amplifier.
Do not place the unit on a rug or other
soft surface that it could sink into,
obstructing the air inlets on its underside,
and take care not to obstruct the outlet
grille on the top cover.
10. AC Selector (115V or 230V)
The AC Selector will be set to the AC
power voltage of your country from
factory. But in case if your XIA30t/XIA50
is not received directly from factory or you
move from one country to the other, the
AC selector might be set at different
voltage. So, before plug power cord into
your wall AC outlet, please always check
if the Voltage selector set to the voltage of
the country you will use XIA30t/XIA50 or
not and set to correct voltage. When the
AC Selector is set to 115VAC, the
XIA30t/XIA50 can be used in countries
with AC Power Voltage between 110V
and 120V. When the AC Selector is set to
230V, the XIA30t/XIA50 can be used in
countries with AC Power Voltage between
220V and 240V.
11. AC RECEPTACLE
The AC RECEPTACLE is for you to plug
in with power cord attached in the
packing or you can plug in with other
power cord with your preferences.

12. USB CONNECTOR
The USB connector is for connecting to
computer, other equipments with USB,
LAN and so the Internet.
The analog output of the USB connector
is in parallel with auxiliary input.
7

1. POWER SWITCH
The amplifier is turned on by depressing
the power switch. The small indicator
above the switch will glow blue. Before
switching on, always set the volume
control to minimum to avoid damage to
your loudspeakers.
Note: Your AMC amplifier will play music
almost immediately after being switched
on. However, in common with other
audiophile products, the internal circuits
take some time to stabilize fully, and the
best possible sound quality may not be
obtained until the amplifier has had some
time (possibly an hour or two) to warm
up.
2. INFRARED RECEIVER
The infrared receiver for receiving the
infra-red signals from your remote
handset.
3. BALANCE CONTROL
The Balance Control adjusts the relative
levels of the left and right channels. It has
no effect on recordings being made. A
detent at the 12 o'clock position marks
the point of equal balance. Rotation of the
Balance Control to the right (clockwise)
decreases the level of the left channel so
that only the right channel is heard.
Rotation to the left shifts the sonic image
toward the left speaker.
Adjust the Balance Control to produce a
natural spread of sound across the space
between the speakers, with any
monophonic sound (such as a radio
announcer's voice) appearing as a
phantom image centered midway
between them. Recordings often contain
small errors in channel balance, typically
no more than 2dB; but this is enough to
degrade stereo imaging. Small
compensating changes in the setting of
the Balance Control can significantly
improve the depth and stability of the
stereo image.
4. PHONES
The headphone socket will accept any
headphones fitted with a standard
1/4"(6.35mm) stereo jack plug. When
Headphones are in use, the output to
your loudspeakers will be cut and all the
amplifier's functions will operate as
normal.
5. MUTE/NORMAL/DIRECT SWITCH
By turning the Direct/Mute switch to
"Mute" it is possible to cut the output to
your loudspeakers, a feature which will
prove useful in situations where a lower
volume level may be required for short
periods (e.g. for a phone call etc.)
If required, the tone controls can be
completely by-passed with a resultant
increase in sound quality. To do this
simply turn the Mute/Normal/Direct switch
to the "Direct" position.
With the Mute/Normal/Direct switch in the
"normal" position, the tone controls will
cut their respective frequencies when
turned anti-clockwise and boost them
when turned clockwise. The flattest
response is found when the controls are
in the "12 o'clock position.
6. BASS CONTROL
The Bass Control adjusts the relative
level of the low frequencies in the sound.
The electrical response of the amplifier is
flattest when the control is set in the
detent or 12 o'clock position. Rotation of
the knob to the right (clockwise)
increases the level of low frequency
sounds, and rotation counter-clock-wise
decreases their level. Adjust the Bass
Control to achieve the tonal balance that
sounds most natural to you.
7. TREBLE CONTROL
The Treble Control adjusts the relative
level of the high frequencies in the sound.
The response of the amplifier is flattest
when the control is set in the detent or 12
FRONT PANEL CONTROLS
8

o'clock position. Rotation of the Treble
Control to the right (clockwise) increases
the level of high frequency sounds, and
rotation counter-clockwise decreases
their level. Adjust Treble Control to
achieve the tonal balance sounds most
natural to you.
8. TAPE MONITOR SWITCH
The Tape Monitor switch is generally left
in the "Source" position, so that the
program selected by the input switch is
routed to the loudspeakers/headphones.
If the Tape Monitor switch is turned to the
"Tape" position, the signal from the tape
Recorder is routed to the loudspeakers/
headphones.
If your tape machine is a three head type
suitable for A/B monitoring, then turning
the Tape Monitor switch to the "Tape"
position will allow full off-tape monitoring
of the recorded signal to be carried out
via the loudspeakers/headphones.
TAPE RECORDING
All sources, Phono, CD, Tuner and Aux
can be recorded via the tape connections.
To record an input, select the required
source and set your recorder to the
record mode.
To record from one tape recorder to
another, the palyback recorder should be
plugged into the Aux/USB socket, and the
recording machine into the Tape socket.
The input selector switch should be set to
"Aux". A recording can now be made in
the normal way.
PLAYBACK
Set the Tape Monitor switch to the "Tape"
position and set your recorder into the
playback mode.
detent or 12 o'clock position. Rotation of
the knob to the right (clockwise)
increases the level of low frequency
sounds, and rotation counter-clock-wise
decreases their level. Adjust the Bass
Control to achieve the tonal balance that
sounds most natural to you.
9. INPUT SELECTION SWITCH
The rotary input selector switch selects
which input signal(Phono, CD, Tuner or
Aux/USB)is fed to the power amplifier.
The selected signal is also fed to the
"Tape out" sockets for recording.
10. VOLUME CONTROL
The volume control adjusts the overall
loudness level of the sound. It has no
effect on the level of the signals fed to the
TAPE OUT jacks for tape recording. The
Volume control is designed for accurate
tracking of its two channels, so that the
stereo balance will not shift noticeably as
the loudness of the sound is varied.
9

AMC Amps Remote Code List
Customer Code: 07FC
Function
Tuner
CD
Video
Phono/Option
Aux
iPod/DAC
Master Volume Up >
Master Volume Dn <
Hex
C0
C1
C8
C9
CA
CB
D8
D9
Type
Input
Input
Input
Input
Input
Input
General
General
Product(s)
XIA30t/XIA50,XIA100/XIA150
XIA30t/XIA50,XIA100/XIA150
XIA100/XIA150
XIA30t/XIA50,XIA100/XIA150
XIA30t/XIA50,XIA100/XIA150
XIA100/XIA150
XIA30t/XIA50,XIA100/XIA150
XIA30t/XIA50,XIA100/XIA150
D0
0
1
0
1
0
1
0
1
D1
0
0
0
0
1
1
0
0
D2
0
0
0
0
0
0
0
0
D3
0
0
1
1
1
1
1
1
D4
0
0
0
0
0
0
1
1
D5
0
0
0
0
0
0
0
0
D6
1
1
1
1
1
1
1
1
D7
1
1
1
1
1
1
1
1
10

1
2
1
1
2
1
2
1
11
1.INPUT SOURCES
PHONO, CD, TUNER, AUX
2.VOLUME CONTROL
△: VOLUME UP
▽: VOLUME DOWN
ONOFF
PHONO CD TUNER AUX
iPod/DAC VIDEO
1
4
7
2
5
8
0
3
6
9
VOLUME
CD
CD USB 24192
PLAY/PAUSE
STOP
TRK/TITLE
DIRECT
AM
FM
AUTO
MANUAL
PRESET
DAB+
SELECT
INFO
ENTER/M
RC-S8
USB
VOLUME
CD TUNER
PHONO iPod/DAC
VIDEO AUX
COAX OPTICAL
POWER
RC-048

12
SPECIFICATIONS
Weltronics Corp. reserved the right to improve its products at any time. Specifications are
subject to change without notice.
Rated Power into 8/4 ohms .............................. 30/40W
With both channels driven
Rated T.H.D.20Hz-20KHz ................................ 0.05%
1KHz clipping power into 8/4 ohms ..................... 36/50W
Input Sensitivity for 1W/Rated Power into 8 ohms:
High level inputs ......................................... 23mV/150mV
Phono input MM ....................................... 0.5mV/2.7mV
MC ................................. 0.05mV/0.27mV
Input impedance:
High level inputs ..................................... 20K ohms
Phono input MM/MC ................................. 47K ohms/100pF
Frequency response:
Tone bypass 20Hz-20KHz ........................................ +/-0.5dB
Normal 20Hz-20KHz ................................................ +/-1.0dB
High level inputs -3dB ................................... 10Hz/60KHz
Signal to noise ratio(ref.1W/8 ohms):
High level inputs "A" WTD .................................... 88dB
Phono inputs"A" WTD ................................................. 80dB
Separation 20Hz-20KHz ...................................... >65dB
Tone control range:
Bass at 100Hz .......................................... +/-10dB
Treble at 10KHz .......................................... -8/+11dB
Overall feedback ....................................... 26/29dB
PHYSICAL:
Dimensions (W x H x D) ......................... 430x82x288 mm
Net weight ......................................................... 6.2 Kgs
Shipping weight (4 pieces) ........................................ 31.5 Kgs
Finish .................................................. black or silver
50/65W
0.05%
60/78W
23mV/150mV
0.5mV/2.7mV
0.05mV/0.27mV
20K ohms
47K ohms/100PF
+/-0.5dB
+/-1.0dB
10Hz/60KHz
88dB
80dB
>65dB
+/-10dB
-8/+11dB
26/29dB
430x82x288 mm
6.5Kg
32.5Kg
black or silver
XIA50XIA30t

1. READ INSTRUCTIONS
All the safety and operating instructions should be read
before the appliance is operated.
2. RETAIN INSTRUCTIONS
The safety and operating instructions should be retained for
future reference.
3. HEED WARNINGS
All warnings on the appliance and in the operating instructions
should be adhered to.
4. FOLLOW INSTRUCTIONS
All operating and use instructions should be followed.
5. WATER AND MOISTURE
The appliance should not be used near water - for example,
near a bathtub, washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, etc.
6. CARTS AND STANDS
The appliance should be used only with a cart or stand that is
recommended by the manufacturer.
An appliance and cart combination should be6A.
moved with care. Quick stops, excessive force,
and uneven surfaces may cause the appliance
and cart combination to overturn.
7. WALL OR CEILING MOUNTING
This equipment is not designed for use mounted on a wall or a
ceiling.
8. VENTILATION
The appliance should be situated so that its location or position
does not interfere with its proper ventilation. For example, the
appliance should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation openings, or placed in a
built-in installation, such as bookcase or cabinet that may
impede the flow of air through the ventilation openings.
9. HEAT
The appliance should be situated away from heat sources
such as radiators, heat registers, stoves, or other appliances
(including amplifiers) that produce heat.
10. POWER SOURCES
The appliance should be connected to a power supply only of
the type described in the operating instructions or as marked
on the appliance.
11. POWER-CORD PROTECTION
Power-supply cords should be routed so that they are not likely
to be walked on or pinched by items placed upon or against
them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from
the appliance
12. CLEANING
The appliance should be cleaned only as recommended by
the manufacturer.
13. NON USE PERIODS
The power cord of the appliance should be unplugged from the
outlet when left unused for a long period of time.
14. OBJECT AND LIQUID ENTRY
Care should be taken so that objects do not fall and liquids are
not spilled into the enclosure through openings.
15. SERVICING
The user should not attempt to service the appliance beyond
that described in the operating instructions. All other servicing
should be referred to qualified service personnel.
16. DAMAGE REQUIRING SERVICE
The appliance should be serviced by qualified service
personnel when:
a) The power-supply cord or the plug has been damaged; or
b) Objects have fallen, or liquid has been spilled into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate normally or
exhibits a marked change in performance; or
e) The appliance has been dropped, or the enclosure is
damaged.
17. POWER LINES
(APPLIES TO TUNERAND RECEIVERS ONLY)
An outdoor antenna should be located away from power lines.
18. OUTDOOR ANTENNA GROUNDING
(APPLIES TO TUNERAND RECEIVERS ONLY)
If an outside antenna is connected to the receiver, be sure the
antenna system is grounded so as to provide some protection
against voltage surges and built up static charges.
Section 810 of the National Electrical Code,ANSI/NFPA No.
70-1984, provides information with respect to proper
grounding of the mast and supporting structure, grounding of
the lead-in wire to an antenna discharge unit, size of grounding
conductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode. See Figure.
a) Use No. 10 AWG (5.3 mm ) copper, No. 8 AWG (8.4 mm )
22
aluminum, No. 17 AWG (1.0 mm ) copper-clad steel or
2
bronze wire, or larger, as a ground wire.
b) Secure antenna lead-in and ground wires to house with
stand-off insulators spaced from 4-6 feet (1.22-1.83 m)
apart.
c) Mount antenna discharge unit as close as possible to where
lead-in enters house.
d) Use jumper wire not smaller than No.6 AWG (13.3 mm )
2
copper, or the equivalent, when a separate antenna-
grounding electrode is used. See NEC Section 810-21(j).
SAFETY INSTRUCTION
S3125A
PORTABLE CART WARNING
Antenna Lead
In Wire
Ground
Clamp
Electric
Service
Equipment
Power Service Grounding
Electrode System
(NEC Art 250 Part H)
Ground Clamps
Antenna
Discharge
Unit (NEC
Section 810.20)
Grounding Conductors
(NEC Section 810.21)
Antenna Grounding According to
the National Electrical Code
National Electrical Code
Available from Library, book
stores, or National Fire Protection
Association (Batterymarch Park,
Quincy. MA 02269).
AMC 21-3004

PN: 21R-XIA30t-1
21R- XI A30 t - 1