XETEC XIRCUIT Series User manual

XETEC®
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always ahead . . .
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XIRCUIT-Xi-440.5
The XETEC®XIRCUIT series –
power, sound performance
and technology.

XETEC XIRCUIT xi-440.5
Congratulations for buying this XETEC product and thank you for your
confidence! With this XETEC amplifier you have purchased an innovative
and professional high-end product, which will enable you to enjoy your
music on a very high quality level for many years. We have especially focused
on electronic as well as product design to give you a product that will
accompany you for many years, as our products are always one step ahead
and will still be modern for many years.
XETEC products represent the experience our engineers have made through
many years assisted by car audio magazines as well as professional installers.
Please read these instructions very carefully, to avoid unnecessary trouble
and defects.
In case of trouble, please contact your local dealer or check our website
www.xetec.de for troubleshooting. There we also offer up-to-date tech-tips
and technical support for you.
The XETEC xi-440.5 is a state-of-the-art 5-channel car audio amplifier,
especially developed for top quality speaker systems and subwoofers.
A perfect choice are the XETEC Component systems and subwoofers.
You can also run each 2 of the 4 channels in bridged mode to gain more
than twice the output power, in order to drive subwoofers, midbasses or
high power component systems.
The versatility and many adjustment options make the XETEC xi-440.5 an
allround genius for car music reproduction.
PROPERTIES
•HPAAAmplifier (High PrecisionAnalogAmplifier)
• BLC (Bass Level Controller)
• Independent low- and highpass filters (bandpass possible)
• Protection circuit:Overload,Short-circuit, DC,Overheat
SAFETY
•Before you make any connection,the battery must be
disconnected!
•A main fuse must be installed into the +12V wire within the
first 12" from the + terminal of the battery (insurance regulation!).
•Please note that a minimum speaker impedance of 2 Ohms
(>4 Ohm in bridged mode!) must be maintained.
Do not connect speakers with lower impedance in normal as well as
in bridged mode!
•Make sure that you do not use defective speakers and
subwoofers.They can cause damage to your amplifier!
•The fuses inside the amplifier only protects the device itself, not the
battery and the car!
IMPORTANT NOTICE: STABILITY OF AMPLIFIERS
Normal operation:
Every amplifier is only capable of driving loads (speakers) up to a certain
limit, which is set either by the protection circuits or the maximum power
output. XETEC amplifiers accept loads down to 2 Ohms in normal operation.
Bridged mode:
In bridged mode each two channels of the amplifier are driving the same
load, the acceptable impedance for each channel is also divided by two!!!
That means:
A normal amplifier „sees" 4 Ohms as 4 Ohms. In a bridged amplifier, each
amplifier „sees" 2 Ohms only!!! That’s why in bridged mode always 4 Ohms
must be maintained although the amplifier might be 2-Ohms stable.
CAUTION
This product is capable of conducting very high sound pressure
levels, and can thus be harmful to your health. Prolonged exposure
to high volume levels can cause hearing loss! Please use restraint on
the volume control. XETEC wants you to enjoy your amplifier for a
long time to come, and we do not take responsibility for hearing loss
nor other health problems.
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0. INSTALLATION
For safety reasons, the amplifier has to be mounted properly and fixed to
the car’s body. Please fix the device using the screws that come with your
product. Be careful when drilling holes, there might be wires, fuel lines or
the gas tank behind a wall! Never drill holes when you do not know what’s
behind. Never install signal wires close to power cables to avoid hum and
alternator noise is being induced.
1. CONNECTIONS
Before you make any connections, always disconnect the battery!
1.1 First of all, connect the RCA cables coming from the radio/head unit
to the respective inputs of your amplifier. Always run signal cables in
a distance to power cables and the vehicle’s factory wires to avoid
induction of noise.
For bridged mode operation you need anY-adaptor to connect the
L and R input to Mono!The Mono signal must be connected to the
inputs front (right/left) and/or rear (right/left).
1.2 Now the speaker wires must be connected to the respective speaker
terminals. Please make sure to use speakers with the correct impedance!
Also make sure to connect all speakers with correct polarity to avoid
phase problems which can spoil the sound of the whole system.
1.3 Next step is the ground connection. Check for a good grounding
point using your vehicle’s chassis. Make sure that this point has good
electrical contact! Some parts of the chassis might only be glued and
have no contact to battery (-). Run all ground cables of the system
to this point to avoid alternator whine and other noise.
1.4 As the next connection the +12 V cable has to be connected to the
(+) terminal of the battery. Always be careful not to run this cable
around sharp edges, the insulation might be damaged. For holes
always use grommets!
Always use an in-line fuse in the +12 V power cable in max. 12"
from the battery’s + terminal (value must meet the current
requirements of the whole sound system, minimum value is 60 A).
1.5 The last connection is the remote wire. The head unit must always be
turned off during this connection, as it might be damaged when
remote output is shorted to ground! Now you can reconnect the
battery and insert the main fuse into the power cable’s fuse holder.
CAUTION:
Both, the +12 V and the ground cable, must have sufficient diameter!
XETEC proposes the following minimum gauges:
Total output power of the system:
Up to 100W: 6 mm2Up to 1000W: 35 mm2
Up to 250W: 8 mm2Up to 1200W: 40 mm2
Up to 500W: 10 mm2More than 1200W: 50 mm2
Up to 750W: 25 mm2
Weaker cables will reduce the performance of your system significantly,
and may cause damage to your amplifiers. Weak cables also will heat-up!
CAUTION
Always replace fuses with same value. Higher values may cause
damage to your amplifier, battery or car!
2. FIRST POWER-ON
2.1 Adjust all level controls to minimum
2.2 Turn on the radio at low volume
2.3 Increase the volume and adjust the front speaker’s volume
2.4 Now adjust the volume ratio between front and rear speakers and
subwoofer.
XETEC recommends the following crossover frequencies:
16 cm front speaker: 16 cm rear speaker:
Highpass 80-100 Hz Highpass 100-120 Hz
13 cm front speaker: 13 cm rear speaker:
Highpass 100-140 Hz Highpass 120-150 Hz
10 cm front speaker: 10 cm rear speaker:
Highpass 120-200 Hz Highpass 150-200 Hz
16 cm midbass:Bandpass 80/150 Hz (= Highpass 80 Hz+ Lowpass 150 Hz),
Composystems then are run with Highpass 150-180 Hz!
Subwoofer:Lowpass 70-100 Hz, Subsonic 20-35 Hz
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3. CONTROLS
xi-440.5
1 Level front
2 Front highpass
3 Bypass for front highpass
4 Front lowpass
5 Bypass for front lowpass
6 Level rear
7 Rear highpass
8 Bypass for rear highpass
9 Rear lowpass
10 Bypass for rear lowpass
11 Level sub
12 Subwoofer lowpass frequency
13 Subwoofer phase shift 0°-180°
14 Subsonic frequency
15 Subsonic on/off
16 BLC connector
17 RCA line inputs front (left and right channels)
18 RCA line inputs rear (left and right channels)
19 RCA subwoofer inputs (left and right channels)
4. CONNECTORS
1 +12V and ground power input
2 Remote terminal
3 Fuses (2x40A)
4 Front speakers connector
5 Rear speakers connector
6 Subwoofer connector
OPTIONAL ACCESSORY
XETEC „ParaQ-7" parametric equalizer for perfect sound
APPLIED TECHNOLOGIES
•HPAA © by XETEC design group GmbH:„High PrecisionAnalog
Amplifier",symmetrical State-of-the-Art power amplifier.
•X-SMPS © by XETEC design group GmbH:„x-Switched-Mode-Power-Supply",
high efficiency power supply
• VCVS-Filter © by XETEC design group GmbH:„Voltage Controlled
Voltage Source" filters for the crossover networks
• X-protect © by XETEC design group GmbH:Highly sensitive protection
circuits
24117 18 67919 11 12 13
3517 18 810 19 14 15 16
3
3121
3
44
6
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TECHNICAL DATA
XETEC xi-440.5:
RMS Output power @ 4 Ohms:4x65W
RMS Output power @ 2Ohms:4x130W
RMS Output power @ 4 Ohms:2x160W in bridged mode
Subwoofer output power @ 4 Ohms:1x180W
Subwoofer output power @ 2 Ohms:1x250W
Max input Current (@ 13,8V):85A
Idle current (no signal):1,4A
Fuse:2x40A
Total Harmonic Distortion (THD):<0,03 %
SNR:>90 dB(A)
Freq.Response (bypass mode): 5 Hz-30.000 Hz (in bypass mode)
Damping Factor;155
Stability:>2 Ohm (>4 Ohm in bridged mode!), Sub >2 Ohm
Input Sensitivity:200 mV-6V
Crossover frequencies:50 Hz-6 kHz lowpass,25 HZ-6 kHz highpass,
Crossover frequencies Subwoofer : 50-200 Hz lowpass ,10-50 Hz subsonic
Warranty:2Year
TROUBLESHOOTING
1. Power indicator LED in top plate is not lit
•Main fuse or fuse in amplifier blown?
• Remote wire properly connected? Is there remote voltage (12V)?
• Amplifier overheated?
• Battery voltage low (<10,2V)?
• DC on one of the speaker outputs?
• Overload
2. Distortions at medium level
• Please check the speaker connections for short-circuits
• Are the speakers OK?
• Radio volume turned up too high.Better turn up the amplifier’s level controls
3. Alternator whine and similar noise
•Bad ground connections?
•Use ONE ground contact only!
•RCA cables run too close to power cables?
In case of further trouble,please ask your local XETEC dealer for support.
XETEC design group GmbH
Lengericher Landstr. 30 · 49078 Osnabrück
Tel. +49 / 541/ 750 450 . www.xetec.de
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