XTZ 99 W12.18 P User manual

Page: 1 / 10
XTZ 99 W12.18 P
Passive High End subwoofer
User manual
© 2009 XTZ AB , www.xtz.se

Page: 2 / 10
Table of contents
Page:
Contents
3
About XTZ
3
Technical presentation
4
Preparations
4
Practice of sound / Installation and placement tips
5
Mounting
7
Area of usage
8
Technical specifications
9
Service Support
10

Page: 3 / 10
Contents
Contents
Co gratulatio s of your purchase the 99 W12.18P
Whe combi ed with surrou d audio/video
electro ics, you will experie ce sou d of
motio
pictures or music records
much 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 99 W12.18P
is a passive subwoofer, which
mea s that a
amplifier is eeded for power the
woofer.
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
provide the best value
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]

Page: 4 / 10
Technical presentation
Amplifier
The W12.18P is a passive
woofer, so a exter
amplifier is a eed. 100-400 Watt is
appropriate
power.
The woofer/ driver
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 updeated
versio is o e of the best 12” woofers o the
market. W
ith a extremely stiff a d stable i jectio
moulded 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 without
reso a ces.
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, please
co tact your retailer.
Accessories
2 bass plugs (fou d i the bass reflex gates)
User ma ual
Speaker cover

Page: 5 / 10
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 achieve 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 are 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 reflectio s that may lead to
blurry dialogue. Apart from colouri g the sou d,
also the perspective of the sou d will det
eriorate.
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 loudspeaker is placed ear a
cor er. Thus, for a sou d as clear as possible, the
loudspeaker should be placed at least 3
0 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 iture 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
differe 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 together
with or ear the fro t system (especially importa t
if the fro t loudspeaker also propagate
bass
freque cies) as th
is will mi imize the risk of phase
elimi atio s i the room.

Page: 6 / 10
Cables
Try to keep them as short as possible. By its
electrical parameters, 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 shou
ld 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 oth
er
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 efit
s 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 ro
om 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!

Page: 7 / 10
Mounting
Mounting
Ge erally:
The placeme t of the subwoofer i the room affects
the overall freque 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 methodical
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 W12.18P 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 the
+-pole o the amplifier to the +-
pole o the
loudspeaker a d respectively for the mi us (-) pole
If you by accide t c
o 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.
Overload
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.

Page: 8 / 10
Area of usage
Connection
Co ect
the speaker cable to the i put of the
subwoofer
This picture shows ot actual measured curves. It is o ly i te ded to be used as a illustratio o the differe t acoustic
characteristics i the lower freque cies.
Room Tuning
-
Mechanical
adjustment of the
boundary frequency
By usi g the supplied bass plugs i the bass reflex
gates, you ca alter the lower b
ou dary freque cy
o XTZ 99 W12.18P
This makes it possible to alter the so ic
characteristics of the woofer. The picture below
shows 4 basic setti gs.
With 1 or 2 ope reflex gates(bass-
reflex) will
i crease the efficie cy so it ca ha dle more sou d
pressure tha with 2 closed reflex gates(closed-
box)
1st mode - no plugs in the reflex gates
No plugs i the gates will provide
a "quick" bass
suitable for big rooms.
2nd mode - 2 bass plugs in the reflex gates
This will provide a eut
ral, eve a d co troled bass
setti g (Closed box)
3rd mode - 1 plug in the right reflex gate
O e plug i the right
gates will provide a "deep"
bass suitable for smaller rooms.
4rd mode - 1 plug in the left reflex gate
O e plug i the left gates will provide a
a “ eutral"
bass character.
Si ce the so ic characteristics depe ds o
the room a whole ra ge of exter al
factors, there exists o "sta dard" setti g
for a eutral represe tatio .
Room tu i g will also have i flue ce o
the efficie cy you will have to adjust the
volume, freque cy a d High Pass i the
room tu i g modes.
"Quick" bass explai ed:
By this we mea a bass with less deep bass
i formatio . This might also be
called
"hard", "attack", "tight", "pu chy" etc.

Page: 9 / 10
Technical specifications
Construction type
Passive
subwoofer, Bass reflex gate or may be set as
closed box.
Room-tu i g.
Dimensions
460 x 394 x 460 mm (HxWxD)
Feet ot i cluded
Weight
27,5 kg
Magnetic shielded
No
Power handling
driver
350 W Short term - IEC 268-5
175 W Lo g term - IEC 268-5
Impedance driver
4 ohm
Driver
12" Peerless XXLS woofer ,Alumi ium co e,
alumi ium frame, High flow basket, 2,2kg mag et.
Total weight 6,5 Kg
Connections.
Speaker i put - Gold plated ba a a plug / pole
screw.

Page: 10 / 10
Service support
Warning!
This subwoofer is capable of deliveri g sou d
pressure levels i excess of 85 dB, which may cause
perma e t heari g damage.
Guarantee
This product is supplied with a ONE year guara tee
agai st ma ufacturi g faults or defects that might
alter the performa ce of the u it. Refer to your
supplier for full sales a d guara tee terms.
Service
If you eed service co tact your local dealer.
You are always welcome to co tact us if you have
problems with product by e-
mail:
[email protected]
Webpage: www.xtz.se
ALWAYS pack the product / part very
carefully. U fortu ately damages duri g
tra sportatio are very commo . If the
p
ackage is weak, the tra sporti g
compa y does ot compe sate damages.
Always e close a copy of the receipt a d a
descriptio of the defect.
Support
Please co tact our “free-of-charge”
support if you
eed i stallatio advice, or if a y problems occur
duri g the i stallatio .
Co tact us by e-mail [e-mail]
a d i clude
your pho e umber if you require
help, a d we will
ri g you back.