XINDAK XA8800MNu User manual

POWER AMPLIFIER
XA8800MNu
INSTRUCTIONS
®

1
Chapter 1 Important Safety Instruction
The lightning flash with arrowhead symbol, within an equilateral triangle,
is intended to alert the user to presence of uninsulated “Dangerous
voltage” within the product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
Dangerous Voltage
The exclamation point within an equilateral triangle is intended to alert the
user to presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
Important Instructions
XA8800MNu
Marking by the CE symbol shown left indicates compliance of this
device with the EMS Electrornagnetic Compatibility and LVD low
voltage directive) standards of the European Community.
"" ( )
()(
!
!
CAUTION

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Chapter 1
1.1 Before Use
Important Safety Instruction
Unpack your XA8800MNu power amplifier and keep all packing materials for future transport or service, locate and
remove all accessory items from the accessory box within the controller shipping carton.
Accessories Included:
Please read all instructions and precautions carefully and completely before operating your power amplifier.
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 dry cloth.
7. Always keep this unit out of the reach of children.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus ( including amplifiers) that
produce heat.
9. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they
exit from the apparatus.
10. Unplug this apparatus during lightning storms or when unused for a long time.
11. Always disconnect your entire system from the AC mains before connecting or disconnecting any cable, or when cleaning any
component.
12. This product must be terminated with a three conductor AC mains power cord which includes an earth ground connection, to
prevent shock hazard, all three connections must always be used.
13.AC extension cords are not recommended for use with this product.
14. Never use flammable or combustible chemicals for cleaning audio components.
15. Never operate this product with any cover removed.
16. Never pour or spill liquids directly onto this unit.
17. Never block air flow through ventilation slots or heat sinks.
18.Never by pass any fuse.
19. Never replace any fuse with a value or type other than those specified.
20. Never attempt to repair this product, if a problem occurs, contact your dealer.
21. Never expose this product to extremely high or low temperatures.
22. Never operate this product in an explosive atmosphere.
1. AC power cord × 1 2. User manual (This manual)
1.2 Check Accessory
XA8800MNu

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XA8800MNu is a mono power amplifier, with full symmetric current negative feedback structure. This model offers the
user quality sound reproduction and elegant styling also features excellent look.
The amplifying circuitry design follows the well appraised current negative feedback structure, featuring the full
symmetric and full complementary circuit. The most outstanding advantages of this circuitry are powerful drive, low
distortion, rich dynamics, excellent controlling ability, reliable work and good sound. The whole amplifying circuitry can be
divided into three stages: the first stage adopts quality Motorola MJE350/MJE340 geminate transistors, the second
stage adopts Toshiba 2SC517/2SA1930 geminate transistors and the output stage uses three pair of Sanken
2SC3264/2SA1295 high current geminate transistors. Therefore, this amplifier is ensured of power driving current.
The materials are very select, especially some audio-use-only and world famous capacitances are choicely used in
the audio loop. It uses imported relay to switch the coaxial channel and balanced channel. The whole power supply
system is consisted of the 350W high quality annular transformer as the core, the 50A high speed bridge rectifier and
60,000 F Rubycon capacitance. The power supply for voltage amplifying is supplied by the filtered and rectified separate
windings of the transformer, which have high speed, low noisy, low impedance and strong shielding ability. Besides, the
separate design of the two windings can rapidly reduce the intermodulation disturbance and thus increase the purity of
the sound.
Additionally, this unit has perfect self-protection function. The core of the protect circuitry takes charge of the protect
functions against output over current, over voltage and on/off surge with an indicator which will glitter in case of protect. IC
was used as the controlling core, therefore, the general sensitivity and reliability is rapidly increased.
Sound features: The excelsior circuitry and select materials endow this unit with mellow sound, excellent bounce in
low and powerful drive. Besides, it is also dynamic, with extended soundstage. Sound of this unit is transparent, noble,
elegant and vivid, especially full of rich changes.
2.1 Product Features
Introduction
Chapter 2
XA8800MNu
POWER POWER

4
u
uv
The power supply on-off button
Press this button, the current will be put through; press it again, the current will be cut off.
u
vPower Indicator
After getting through, this indicator will wink for 8 seconds and then light.
u
Balance signal input jack
Connect the input signal by the balanced signal cable.
v
The speaker binding post
Connect it to the speaker by the speaker cable.
w
Signal input jack
Connect the input signal by signal cable.
xSignal Input Switch
Switch between the coaxial and balance input channel
y
Power supply input jack and safety cutout jack
Connect it to the power supply by attached power cord.
Introduction
Chapter 2
2.3 Rear Panel
2.2 Front Panel
XA8800MNu
POWER
xvw y
NO.:

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XA8800MNu
Power Amplifier
Pre-Amplifier
Operation Instruction
Chapter 3
3.1 Connection
1.Before using this machine, you have to connect it to sound sources (such as CD player, DVD player, SACD player) by
signal cable.Also you need to check if the signal connection of the left and right channel is correct and reliable.
2.Before connecting the machine to the right and left channel speaker by speaker cables, it’s strongly suggested that you
consult the dealer if your speaker cable is available for this machine and make sure of the right channel and polarity.
3.Please be very careful when connecting the power cable. Make sure the power supply has been cut off before
connecting to the accessory power cable. If you do have to use other power cables, please check if the specifications are
up to the requirements of this machine. We claim that we are not reliable for the damages caused by the use of other
power cables.
Please make sure all the power supplies have been cut off before connecting any
cable to this machine. If you have no ability to install this machine, please ask
those who are guided or are capable to accomplish the installation or connection.
!
Left Channel
Connection to
Power Supply
Right Channel
XA8800MNu
NO.: NO.:

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Operation Instruction
Chapter 3
3.2 General Problems and Trouble-shootings
Problem Possible cause Trouble-shootings
the machine is
not electrified
Power connector not plug well
Fuse has fused
Plug the power connector again.
Change the fuse coincide with the prompt
requirement.
Speaker no
sound
Sound source turned off
Signal cable is broken
Signal selector switch wrong
Root noise of sound source too big
Signal shielding effect badly
Signal source input phase opposed
Speaker wire to channels has exchanged or
positive negative reversed
Speaker cable is broken
Noise too big
Left and
right channel
confused
Turn on the sound source.
Check and change signal cable.
Check and change speaker cable.
Change a higher SNR sound.
Tune input selection button according to
sound source.
Connect according to the indication of left
and right channel.
Change eligible signal cable
Notice: if you have been confronted any problems when using this product or have any suggestion to tell us, please visit
the wesite of xindak: , you may access our instant technique support here.http://www.xindak.com
XA8800MNu

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Unit: mm
Chapter 4
4.1 Dimensions
Specifications
XA8800MNu
POWER
240

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Chapter 4 Specifications
4.2 Specifications
* All specifications, dimensions and weights are subject to change without notice.
<
<
<
<
<
<
<
<
Power output
ower consumption
Frequency response
Signal-to-noise ratio
Distortion
Dimensions (W×D×H)
Input sensitivity
Net weight
Supply voltage
<Rated p
160W/ch (8ohm Load)
10Hz - 100KHz
100dB Typical(A Weight)
<0.03%
240mm mm mm
1.7V
13Kg/ch
Specified on rear panel decal
240W/ch
×148 ×430
XA8800MNu

XD3.834.065 SMS
No.126, Section 2, East 1 Round Chengdu, Sichuan, China P.C. 610051
You can find your nearest authorized distributor and more product information on our website:
www.xindak.com
© 2006