XTZ XTZ 99 W12S User manual

XTZ 99 W12S
XTZ 99 W12SXTZ 99 W12S
XTZ 99 W12S
Active subwoofer
User's manual

Congratulations on your purchase of a XTZ Home Theatre
Powered Subwoofer System!
When combined with surround audio/ ideo electronics, you'll
experience motion picture sound as it was originally meant to
be. Now when you watch your fa orite mo ie, you'll hear and
feel the soundtrack surround you in the same way as created by
the film's original sound engineers.
XTZ Home Theatre Speaker Systems are modular, so you can
select only the components you need to enhance a current
system or create a totally new one. The Powered Subwoofer
Systems combines a 300-watt continuous power amplifier and a
hea y-duty 12" woofer in a compact single system designed to
perfectly enhance your Home Theatre System. It features phase
switch, a power on indicator, both line-le el and speaker inputs
and a ariable crosso er control.
Contents
About XTZ
Technical presentation
Preparations
Practice of sound /
Installation and placement tips
Mounting
Connections
Control descriptions
Functional reference
Technical specifications
Service Support

About XTZ
Philosophy
Our reference and startling point is to recreate a natural sound,
but also in respect to the fact that acoustics always is a matter of
taste.
XTZ goals
Our main goal is pro ide the best alue for the money.
Our concept t:
- There should be only one middlemen between manufacturer
and customer
- Cost effecti e production
- Find the perfect technical compromise
Contact
Website: www.xtz.se
Email: [email protected]
General agent:
FYNDBÖRSEN AB
www.fyndborsen.se

Technical presentation
Cabinet design
The cabinet is ery la ishly fitted out and made of 25 mm MDF.
It is equipped with a specially modelled bass reflex gateway to
a oid blowing noice and to decrease the air resistance in the
gateway.
We ha e chosen 25 mm MDF to ha e a low own resonance. The
cabinet is built with bars to make it e en more stable.
The woofer
driver
The XTZ W12S is equipped with a powerful and well-sounding
12" woofer. The cone has an aluminium frame for maximal
stiffness and has at the same time a low weight, which
contributes to the high efficiency. Also the powerful magnet
contributes to this.
To gain a high power patience, we ha e chosen a larger diameter
on the coil. The dri er is equipped with rubber suspension for
high strength, flexibility and to gain a longer peak-to-peak
excursion.
The diaphragm is one of the type "non pressed paper" which
gi es a ery stiff yet light dri er. The basket is founded in
aluminium. This combination of a powerful magnet, light dri er
and stable suspension makes up for both enough power and
high precision in the sound.
The amplifier /
crossover
We ha e equipped the XTZ W12S with a ery powerful amplifier
on 400 W and a big cooling flange for effecti e cooling. For
professional (studio, PA etc) use, it is equipped with a balanced
input. The terminal connectors are gold-plated and ery solid.
To achie e a high power and a long durability, the amplifier is
built with a large ring-coil transformer, large electrolyte
capacitors, and has MosFet transistors in the power amplifier.
The acti e amplifier also pro ides a ariety of possible
adjustment possibilities, unable to obtain using a passi e filter.
This includes phase, frequency, high pass filtering, olume etc.
By using these settings, the main amplifier is relie ed and thus
only takes care of the midrange and trebble. Thus it works
better and the risk of damages on it is lowered.

Preparation
Unpac ing the
subwoofer
Carefully unpack the speaker, and pay attention so you don't
brake anything. If possible, sa e the carton box for future
transportations. If there should be a damage on the
loudspeaker, please contact your retailer.
Accessories
4 bass plugs (found in the bass reflex gates)
User's manual

Practice of sound / Installation and placement tips
This chapter contains common information on loudspeaker
placement and installation.
In which room
do you achieve
the best sound?
No matter how good the equipment is, in the wrong listening
en ironment it will ine itably sound bad. There are some basic
rules concerning a proper loudspeaker installation:
Reflections
Carpets, curtains and soft furniture absorbs mid range and high
frequency sound, and this is preferable. Big empty area, on the
contrary, reflects it and produces a hard sound that may lead to
a blurry dialogue. Apart from coloring the sound, also the
perspecti e of the sound will deteriorate. Reflections in the
room can roughly be compared to the reflections that yield
ghost pictures on a TV screen.
Amplfication of
bass frequencies
A loudspeaker that is placed near a wall, ceiling or floor will be
amplified in the lower frequencies in a sometimes not desirable
way (since it may lead to an indistinct sound recreation). This
amplification becomes e en more ob ious if the loudspeaker is
placed near a corner. Thus, for a sound as clear as possible, the
loudspeaker should be placed at least 30 cm (about 12 inch)
away from the wall.
Furniture
Be aware that furniture may ibrate and thus create bad sound
at loud bass.
Room dimension
Quadratic rooms or rooms where the length is exactly twice as
long as the width should be a oided, since they may create
unwanted resonance.
Placement of the
subwoofer
Since it is so hard to judge the direction of bass frequencies, the
placement of the woofer is not that critical as for instance the
placement of front loudspeakers. Howe er, different placements
will influence the sound. One basic rule is to place the
subwoofer together with or near the front system (especially
important if the front loudspeaker also recreates bass
frequencies) as this will minimize the risk of phase eliminations
in the room.
Note: NEVER place the subwoofer near the wall, as this easily
leads to unwanted reflections and thus a dirty sound.
Ne er put the subwoofer inside a cabinet, the amplifier need to
be cooled by circulating air.

Cables
Try to keep them as short as possible. By its electrical
parameters, a long conductor will ha e a bigger influence on the
sound than a short one. It may also work as an antenna and thus
recei e arious signals, that may become a constant noise in an
acti e subwoofer.
Make sure that all connections are clean and not oxidated. All
connections should be mechanically stable, both power, signal
and loudspeaker cables. Signal cables should be separated from
other cables.
Finally:
Please remember that good sound is a matter of taste, so you
ha e to experiment to obtain it. We wish you the best luck!

Mounting
Mounting
alternatives
The XTZ 99 W12S is best placed standing on the floor.
Howe er it is fully possible to lay it down without affecting the
sound.
Dri er and bass reflex gates should not be faced towards floor or
wall, they need to "breathe" freely.
The loudspeaker should stand as stable as
possible, at loud sound le els both the speaker
and the surroundings may ibrate so hea y
that it may mo e the speaker.
Overload
At high load during extensi e time periods, there is always the
risk of o erloading the dri er and amplifier.
The initial
playing time
It takes about 50 to 100 hour of initial playing time, for the
dri er to sound optimal. During this time, the speaker may be
normally used.

Connections
Connect using
the correct
phase
Always connect using the correct phase, from the +-pole on the
amplifier to the +-pole on the loudspeaker and corresponding
for minus (-).
If you by accident connect the other way, there
is no risk of damage. Howe er, the sound will
not be correct, especially in the lower
frequencies.
Alternatives for
connection
There are some different ways to connect a HiFi- or
Multichannel amplifier / recei er.
Please note! Be sure to not connect the
power cord until all signal connections
are made.
Amplifiers with
low level output
to XTZ W12S
Line In
Connect either a stereo or mono RCA lead to your output de ice
(surround decoder, TV, stereo recei er, etc) depending on
whether a stereo or mono output is pro ided. If stereo, connect
both RCA plugs into the subwoofer's RCA jacks. If mono,
connect the RCA plug into either of the input jacks. Then
connect the power cord to your
power outlet.
Amplifiers
without low
level output
A regular 2-conductor-cable is coupled from the (front) speaker
output on the amplifier to HIGH LEVEL IN (SPEAKER IN) on
the XTZ 99 W12. From this ery same terminal, a regular cable
is coupled to the front speaker.

Control Descriptions
By using the controls and the supplied bass plug, you can alter
the sonic characteristics in a wide ariety. This is a great aid in
obtaining the optimal sound.
Sound is always a matter of time, so please
take yout time to find the sound to fit your
personal taste.
For further instructions on the controls and
connections mentioned here, see the chapter
Functional reference.
VOLUME
Controls olume le el of subwoofer.
Be gentle on the olume knob, please
remember that certain sound signals may
contain a lot of energy.
FREQUENCY
Using this ariable control, you can adjust the boundary
frequency for the low pass filter from 50Hz to 150Hz. The steep
is 18 dB/octa e. You can hereby change the character of the
woofer, depending on what you prefer (more or less deep) and
matched to your other speakers.
On modern amplifiers you commonly ha e the possibility to set
the size of the loudspeakers (small / big etc). If you ha e small
front speakers, you should set the size to small. Thus, they will
recreate middle bas, mid-range and trebble much better -
lea ing the deep bass tones alone to the subwoofer.
PHASE
Variable control for 0-180 phase adjustment.
The technical difference between these two extremes (0 and 180
degrees) corresponds to altering the poles of the cables (setting
+ to - and - to +)
In a normal installation, this should be set to
0. But it will ha e impact on the sonic
characteristics, especially the co-operation
with the front speakers.
Please note that the difference betweenthe
lines is 18 degrees