XTZ 99 W12.18 ICE User manual

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XTZ 99 W12.18 ICE
High End subwoofer
User manual
© 2009 XTZ AB , www.xtz.se

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Table of contents
Page:
Contents
3
About XTZ
3
Technical presentation
4
Preparations
5
Practice of sound / Installation and placement tips
6
Mounting
8
Functional reference
9
Area of usage
11
Technical specifications
12
Ser ice & Support
12

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Contents
Contents
Co gratulatio s to your purchase of the XTZ
99W12.18 ICE Subwoofer!
Whe combi ed with surrou d audio/video
electro ics, you will experie ce sou d of
motio
pictures or music records
much more deeply a d
aturally
. Now whe you watch your favourite
movie or liste to your refere ce music CDs
, you
will hear a d feel the sou d surrou di g
you i the
same way as origi ally i te ded by
masteri g
e gi eers.
XTZ Home Theatre Speaker Systems are modular,
so you ca select o ly the compo e ts you eed to
e ha ce your
curre t system or create a totally ew
o e. The 99 W12.18 ICE subwoofer combi es a
550-watt co ti uous power amplifier, heavy-duty
12" woofer.
99 W12.18 ICE is a product with ma y optio s
, so
read the ma ual carefully before usi g it.
Read the ma ual before usi g the product a d use
all possibilities carefully.
About XTZ
Philosophy
Our refere ce a d start
i g poi t is to recreate a
atural sou d, taki g i to accou t
that acoustics
always is a matter of taste.
XTZ Goal
Our main goal is to
pro ide the best alue
for money.
Our co cept:
- Cut dow the umbers of middleme
- Put more mo ey o product quality
a d less o advertisi g.
- Ma ufacture cost-effective i large volume
- Provide perfect tech ical solutio s
Contact
Website: www.xtz.se
E-mail: [email protected]

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Technical presentation
Amplifier
The XTZ 99 W12.18
ICE is equipped with
ICEpower® 125ASX2,
a powerful 550 watt
amplifier. For professio al use (studio, PA etc), it is
equipped with a bala ced i put. The termi al
co ectors are gold plated a d very solid.
Class-
D tech ology makes it possible to get more
p
ower, without havi g the heat from a ormal
amplifier.
The active amplifier also
provides a variety of
adjustme t optio s, ot possible to ob
tai usi g a
passive filter. These i clude
phase, freque cy, high
pass filteri g, volume etc.
By usi g these setti gs, the mai amplifier is
relieved a d o ly eeds to drive the midra ge a d
treble. This usually results i lower distortio a d
the risk of damages o it is lowered.
ICEpower® Class D amplifiers have the followi g
adva tages:
•Audio performa ce better tha Class AB amplifiers
•Sig ifica tly higher e ergy efficie cy of audio
products
•Due to the possibility of desig i g smaller
products, more cha els ca be i tegrated i to a
si gle solutio or audio product
•More output power
•Low distortio
All of th
is take together be efits our e viro me t i
umerous ways a d makes Class D
amplificatio a
“gree ” tech ology .
The Danish Bang & Olufsen ICEpower has
been one of the pioneers in developing
new technologies to enhance Class D
amplification and bri
ng the audio quality
to the level accepted by audiophiles This
allowed for subsequent introduction of
Class D technologies into a wide range of
audio applications
ASX2
modules are the best High End
Class-D on the market today
XTZ is using the newest 125
ASX2
amplifier from ICEpower ®
with there core
technology, COM (
the Controlled
Oscillating Modulato
r) and MECC
(Multivariable Enhanced Cascade Control)
The woofer/ dri er
We have chose a 12 i ch woofer from
(i this field
famous) the Da ish/America
compa y
Tympha y. The woofer is a Peerless XXLS
12
(Xpa ded Extra Lo g Stroke)
. The co structio has
bee o the market for ma y years. This upd
ated
versio is o e of the best 12” woofers o the
market. W
ith a extremely stiff a d stable i jectio
mo
ulded metal basket to keep the critical
compo e ts i perfect alig me t. Large wi dows
i the basket both above a d below the spider
reduce sou d reflectio , air flow oise a d cavity
reso a ce to a mi imum.
The extremely stiff alumi ium co e gives
treme dous bass precisio .
The co e a d the low loss rubber surrou d show o
sig of the familiar co e edge reso a ce a d
distortio associated with soft co es.
The cabinet
The cabi et is made of 21mm MDF with 4
stays
which makes the box stable a d with
out
reso a ces.

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Preparations
Unpacking the
subwoofer
Carefully u pack the speaker, a d pay atte tio so
you do 't break a ythi g. If possible, save the
packi g
box for future tra sportatio s. If there
should be damage o the loudspeaker, pleas
e
co tact your retailer.
Accessories
1 Power chord
2 bass plugs (fou d i the bass reflex gates)
User ma ual
Speaker cover

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Practice of sound / Installation and placement tips
This chapter co tai s commo i formatio o
loudspeaker placeme t a d i stallatio .
This is ge eral rules, so there are exceptio s of
some rules
In which room do
you achie e the best
sound?
No matter how good the equipme t is, i the wro g
liste i g e viro me t it will i evitably sou d bad.
There ar
e some basic rules co cer i g a proper
loudspeaker i stallatio :
Reflections
Carpets, curtai s a d soft fur iture absorb mid
ra ge a d high freque cy sou d, a d this is
preferable. Big empty area, o the co trary, reflects
it a d produces hard re
flectio s that may lead to
blurry dialogue. Apart from colouri g the sou d,
also the perspective of the sou d will deteriorate.
Reflectio s i the room ca roughly be compared to
the reflectio s that yield ghost pictures o a TV
scree .
Amplification
of bass
frequencies
A loudspeaker that is placed ear a wall, ceili g or
floor will amplify
lower freque cies i a sometimes
ot desirable way (si ce it may lead to a i disti ct
sou d recreatio ). This amplificatio becomes eve
more obvious if the lo
udspeaker is placed ear a
cor er. Thus, for a sou d as clear as possible, the
loudspeaker should be placed at least 30 cm (about
12 i ch) away from the wall
Some co structio s are
made to be placed closed to
a wall.
Furniture
Be aware that fur it
ure may vibrate a d thus create
bad sou d at loud bass.
Room dimension
Quadratic rooms or rooms where the le gth is
exactly twice as lo g as the width should be
avoided, si ce they may create u wa ted
reso a ce.
Placement of the
subwoofer
The placeme t of the subwoofer i the room
dramatically
affects the overall freque cy respo se
a d sou d level of the system. A
t low freque cies
the effect of the room is
stro g. Eve a slight
cha ge i the subwoofer's locatio ca make a
sig ifica t di
ffere ce i the freque cy bala ce.
Patie ce
a d methodical experime tatio is eeded
to fi d a optimal
placeme t. The placeme t
affects
the phase differe ce betwee the mai
loudspeakers a d the subwoofer.
O e basic rule is to place the subwoofer togeth
er
with or ear the fro t system (especially importa t
if the fro t loudspeaker also propagate
bass
freque cies) as this will mi imize the risk of phase
elimi atio s i the room.

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Cables
Try to keep them as short as possible. By its
electrical para
meters, a lo g co ductor will have a
bigger i flue ce o the sou d tha a short o e. It
may also work as a a te a a d thus receive
various sig als that may become a co sta t oise i
a active subwoofer.
Make sure that all co ectio s are clea a d ot
oxidized
. All co ectio s should be mecha ically
stable, both power, sig al a d loudspeaker cables.
Sig al cables should be separated from other
cables.
Front speakers
To get the best result the fro t speakers should be
placed symmetrical i fro t
of the liste er. The
dista ce betwee the fro t speakers should be
arou d 80% of the dista ce to the liste er. I other
words, the recomme ded
a gle betwee the fro t
speakers should be 45°.
Why use 2
Subwoofer
There are more the o e be efits of
havi g 2
subwoofers i stead of o e.
The sou d pressure level will be higher.
Less dips a d sta di g waves i the room a d a
better freque cy respo se i the room (a d o
sweet spot)
The eed of power is less, to reach the same SPL as
with o e subwoofer
Finally
Please remember that good sou d is a matter of
taste, so you have to experime t to obtai
your
favourite o e.
We wish you best of luck!

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Mounting
Mounting
Ge erally:
The placeme t of the subwoofer i the room affects
the overall f
reque cy respo se a d sou d level of
the system dramatically, as at low freque cies the
i flue ce of the room is stro g.
Eve a slight cha ge i the subwoo
fer's locatio
ca make a sig ifica t
differe ce i the freque cy
bala ce, a d ofte patie ce a d m
ethodical
experime tatio is eeded to fi d the optimum
placeme t.
This subwoofer is i te ded for XTZ products
, but
ca of course be used with other speakers.
Spikes
99 W12.18 ICE have feet of rubber to
absorb
vibratio s. But it’s possible to cha ge this to spikes.
The Rubber foot are adjustable
to get the
subwoofer i level
with the floor. The foot are
removable for those who wa t to mou t spikes.
(M6 screw)
Connect with the
correct phase
Always co ect usi g the correct phase, from th
e
+-pole o the amplifier to the +-
pole o the
loudspeaker a d respectively for the mi us (-) pole
If you by accide t co ect the other way,
there is o risk of damage. However, the
phase of the sig al will be
ot correct,
resulti g i improper sou d.
O erload
With high power load u der lo g time there is risk
of overloadi g the driver a d/or the amplifier.
WARNING!
All products, amplifiers, speakers, cross
-
overs ca be damaged if playi g loud
music for a lo g time
The initial playing
time
It takes about 50 to 100 hour of i itial playi g time,
for the driver to sou d optimally
. Duri g this time,
the speaker may be used ormally.
Amplifiers with low
level output to XTZ
W12.18 ICE Line In
Co ect either a stereo or mo o RCA lead to
your
output device (surrou d decoder, TV, stereo
receiver, etc) depe di g o whether a stereo or
mo o output is provided.
If stereo, co ect both RCA plugs i to the
subwoofer's RCA jacks. If mo o, co ect the RCA
plug i to either of the i put jacks. The
co ect the
power cord to your power outlet.

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Functional reference
Rear panel
1. Volume
2. Freque cy
3. Phase
4. Auto O
5. EQ 1
6. EQ 2
7. High Pass/Subso ic
8. XLR/Bala ced I put
9. RCA/Li e I
10. Sta dby/O i dicator
11. Spea
ker I /High Level
12. Fuse
13. I put voltage
14. Power co ector
15. Mai sw itch
1 Input Volume
Co trols volume level of subwoofer
Be gentle on the olume knob,
please
remember that certai sou d sig als may
co tai a lot of e ergy.
2 Frequency
Freque cy crossover
Variable co trol ra gi g from 40Hz to 250Hz (
-
3dB) provides optimum
setti g of subwoofer
crossover freque cy to match crossover freque cy
of Home Theatre compo e ts.
The filter slope
is 18 dB/octave. You ca
hereby cha ge the character of the
woofer,
depe di g o what you prefer (more or
less deep) a d
matched to your other
speakers.
O moder amplifiers you commo ly
have the possibility to set
the size of the
loudspeakers (small / big etc). If you have
small fro t
speakers, you should set the
size to small. Thus, they will
reproduce
middle bas, mid-
ra ge a d treble much
better - leavi g
the deep bass to es alo e
to the subwoofer.
3 Phase
Variable co trol for 0-180 phase adjustme t
The tech ical differe ce betwee these two
extremes (0 a d 180 degrees) correspo ds to
I a ormal i stallatio , this should be set
to 0.
The setti g
will have impact o the so ic
characteristics, especially the co-operati
o
with the fro t speakers.

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alteri g the poles of the cables (setti g + to - a d -
to +)
The phase is determi ed by several thi gs:
-Placeme t of 99 W12.18 ICE
-
Placeme t referred to the rest of the
system.
-The crossover freque cy.
If the phase is ot correct, a top or dip will
be the result i the freque cy respo se
Please ote that the differe ce betwee
the li es is 18 degrees.
4 Auto on
Auto o or Always o
Au
to o starts the sub, whe sig al comes
from amplifier. Always o keeps the
subwoofer o all the time.
5 EQ 1
I creases 7dB @ 25Hz
Excessive use of
EQ ca lead to damage of
the subwoofer, whe used at high volumes
EQ 2 a d High Pass filter should ot be
used at same time.
6 EQ 2
I creases 7dB @ 50Hz
Excessive use of
EQ ca lead to damage of
the subwoofer, whe used at high volumes
7 High Pass
Subso ic filter
Switch ON a d the high pass is available. Switch
OFF a d the high pass is u available
The high pass crossover removes the
deepest
part of the bass spectra. This is
helpful i ma y rooms, si ce they
may
heavily amplify the deep
bass to es, which
may lead to u co trolled bass.
High Pass filter a d EQ 2 should ot be
used at same time.
8 Balanced input
XLR
Bala ced i put.
9 Low le el input
RCA i puts/Li e i
Li e-
level i puts to subwoofer. Use these RCA
jacks to co ect audio sig als from li e-
level
outputs o a receiver, preamplifiers, televisio set
s
or a
surrou d sou d decoder. If o ly a mo o
(si gle) subwoofer output is provided, co ect it to
either of i put jack.
O ly o e i put eeds to be used. Use of
both i creases level with 3 dB
10 Standby indicator
Tur s red i sta dby.
Tur s blue whe the subwoofer is o .
11 High le el input
High-level i put.
If your amplifier does ot have subwoofer output
use this i put from your ormal speaker output.
12 Fuse
Electrical fuse. Always replace with the same value!
5 A
13 Power switch
Select your local mai s voltage
230V i EU
110V i USA
14 Power connector
Co ector of mai power
15 Main switch
Mai switch for mai power.
There is a automatic switch o the
subwoofer. Whe it se ses a sig al
, it will
switch o a d co seque tly switch to
sta dby (this is i dicated by the LED,
which tu
r s blue whe i operati g
mode). Whe o sig al is prese t
(after a
certai time peri
od) the amplifier switches
to sta dby mode.
Tur off the subwoofer if it is ot i use
for a lo g period.