AV123 x-cs, x-ls, x-sub, x-sls, x-mtm Enjoyment Manual
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x-series
Enjoyment Guide
Table of Contents
Thank You for your x-series purchase 3
Safety Precautions 4
Unpacking and Product Registration
Inventory 5
Limited Warranty Coverage
5
5
Features and Descriptions 6
x-ls 2-Way Monitors 6
x-cs 2-Way D’Appolito Monitors 6
x-sub Powered Subwoofer
x-sls 2-Way Towers
x-mtm 2-Way D’Appolito Towers
x-pls 3-Way D’Appolito Towers w/Powered Sub
7
6
7
7
Speaker Placement Considerations 8
Front (Left and Right) Speaker Placement 8
Center Channel Speaker Placement
Surround Speaker Placement
Subwoofer Placement Considerations 11
10
10
Speaker Placement Alternatives 1 3
Tower Speakers 13
Shelf Mounting 13
Stand Mounting
Wall Mounting
14
14
Connections 15
Left/Right Connections 15
Center Channel Connections 15
x-sub or x-pls Subwoofer Connections 15
Wiring for Correct Polarity
16
Calibration 17
SPL Measurements 17
x-sub/x-pls Crossover and Phase Adjustments
Caring for your x-series speakers
19
18
Technical Specications 20
Limited Warranty and Return Policies
Service Assistance for AV123 x-series speakers 22
22
User Notes 23
Thank You for your x-series purchase
Dear Home Entertainment Enthusiast,
At AV123, our absolute highest priority begins and ends with you,
the customer. As our valued customer, you can rest assured that
if you’re not 100% satised with your purchase within 30 days
from your original receipt date, you may return your product(s)
for a prompt refund in full (excluding shipping charges) with no
explanation necessary. Coupled with the expert advice on our
website and through our trained advisors, there is simply not a
safer way or place to buy today.
We make every effort to make sure your home entertainment needs are met with the
great products and unbeatable service we offer every single day. Not only do we give
you the tools and the resources to fully evaluate your purchase before your order is
placed, we back this up after the fact by allowing you a full month to audition our
products in your own home before your nal decision is made. AV123 simply does not
engage in misleading and high-pressure sales tactics. In the long run, we know it’s not
the way either one of us wants to do business. We want customers for a lifetime.
Mark with his pride and
joy, Granddaughter
Gracie, after her
performance in the
Nutcracker Ballet
With the x-series speakers, we’ve taken steps to provide exceptional value for your
dollar. There’s the 2-way x-ls monitors featuring a curvelinear long throw woofer in a
vented enclosure and an exceptionally sweet sounding fabric dome tweeter. The tower
version of this (the x-sls) offers the same conguration in a tower design. The x-cs 2-
way D’Appolito monitors are optimized for horizontal or vertical mounting orientation,
so they are a perfect companion center channel to go along with x-ls monitors, xsls towers, or function as L/C/R monitors on their own. Like the x-sls towers, these
also come in tower versions, one 2-way and a 3-way with a 10” powered subwoofer
- the x-mtm and x-pls respectively. These speakers have all the right components
for awesome music and home theater sound reproduction. We’ve also got the x-sub
powered subwoofer that has both speaker and line level inputs, an 8” driver in a vented
enclosure, and enough control to blend the low frequencies seamlessly into the sound
from the other speakers in your system. With the x-series, we’ve truly got the best bang
for the buck in this category!
We’ve done our best to provide you with products and services meeting or exceeding
your expectations. However as good as our products are, they do not match our
dedication to each and every sale. Should you
need any further assistance in the future with your
A/V system, you can bet that AV123 will be there
supporting and assisting you as you make your way
to your next level of audio/visual enjoyment.
Mark L. Schifter
President
Page 3
Safety Precautions
At AV123, we don’t want to see any of our
customers experience the inconvenience
or unfortunate mishap of a precaution that
was ignored. Please review the following
precautions so you may enjoy your AV123 xseries speakers without unnecessary damage
or misuse.
1) If you suspect you have a component failure in
your speakers at any time, please call AV123 for help. Our experts can assist you in diagnosis and, if
necessary, provide you with eld repair parts where applicable. Our goal is your complete satisfaction.
2) Do not lift these speakers if you feel strain or they are just plain too heavy for you. The weight of each
AV123 x-series speaker is listed in the Technical Specications section of this manual for your reference.
3) When lifting these speakers, do so with caution. If you need to use a cart or hand truck to move them
around to their nal destination, please do so with care and caution. Odd shaped boxes may require a 2
person lift even if the weight of the box does not seem prohibitive.
4) Do not install these speakers near water (or expose them to water) or any other liquids. If you have a
place in the basement that oods or a leaky roof in certain spots, do not install your AV123 x-speakers
(or any other home entertainment equipment) in that location. Use good judgement, but if you are not
sure if your chosen location is acceptable, chances are you should call us. It never hurts to ask.
IMPORTANT!
PLEASE REA D T H E SE
IN S T R U C TI O N S
CA R E F U L LY
5) Do not poke, prod, or “heavily pet” these speakers. Do not set drinks on them (or it’s just about
guaranteed the drinks will leave a ring and spill too). Do not use the speakers as tables or chairs.
Whenever possible, ask the kids and pets to play elsewhere than on (or directly in front of) the
speakers. All of these suggestions come from many years of experience by our AV123 experts so you
can trust the origin.
6) Do not install these speakers near a heat source such as a oor heater, space heater, replace, stove,
heat register, active volcano, or any other device (including ampliers) that may radiate heat.
7) Plug the electrical power cord included with the AV123 x-sub/x-pls Subwoofer into a line conditioner or
connect to an unswitched 110VAC wall outlet directly. Do not connect the x-sub/x-pls power cord into
a “power strip”. This ensures the best performance of the subwoofer and avoids power delivery related
problems.
8) Do not plug the AV123 x-series Monitor or Tower speakers into the wall, EVER. Some people think it’s a
great way to test the excursion limits of a low frequency driver but in truth it’s a very dangerous way to
send the cone ying out of the cabinet with excessive heat. Just hook them to the amplier outputs as
recommended in this manual please. The exception is the x-pls Tower which contains a powered sub.
9) These speakers in a home entertainment environment can easily produce high sound pressure levels
that can impair hearing if you (or other listeners) undergo extended exposure. Use caution when
listening at high volumes and, by all means, please discontinue use if your ears are ringing. If you must
play these speakers at extremely high volumes, we recommend the use of OSHA approved hearing
protection.
10) Please read and follow the instructions in this manual. Keep this manual for future reference.
Page 4
Unpacking and Product Registration
The AV123 x-series speakers should reach you in absolutely perfect condition. If you
notice any shipping damage or other issues upon unpacking the unit, please contact
AV123 immediately. We have gone out of our way to ensure the speakers are shipped
with the utmost care, but if that is not the case when they arrive at your door, please do
not hesitate to contact us.
Inventory
Your AV123 x-series components are carefully hand packaged utilizing molded foam
inserts to protect their ne furniture grade nish. When removing the speakers from the
box, hold the wood sides of the cabinet, rather than the front and back. It is important
to save all the packing materials and the box in case your AV123 x-series speakers ever
need to be moved or shipped back to AV123 for service or repairs.
All x-series speakers include rubber mounting feet in the packaging to
decouple the speaker from the oor.
Getting Started
Once you have established that all of your speakers and accessories are
present and accounted for, we ask that you PLEASE READ THIS MANUAL
FIRST before installing and positioning the speakers. We have thoughtfully assembled
many useful tips to maximize the performance of your AV123 x-series speakers in your
home entertainment environment.
Rubber Feet
Limited Warranty Coverage
All products sold through AV123 carry a limited manufacturer’s parts and labor warranty.
All AV123 x-series loudspeakers are guaranteed to be free from manufacturer’s defects
for a period of one year from the date of purchase. Make sure that you keep your sales
receipt. It is the only way for AV123 to establish the duration of your limited warranty
and it may come in useful for insurance purposes if your AV123 speakers are ever
damaged or stolen.
Register your AV123 speakers at AV123.com
Please take a moment to visit AV123.com and register your AV123 x-series purchase.
When you go online and register your product, AV123 will extend the warranty by an
additional two years. This, in addition to the 1 year limited warranty is a total of 3 years!
This extended warranty is free simply for registering within 60 days of your purchase.
We urge you to take advantage of this offer. Warranties apply only to the original owner
and are non-transferable. See page 23 for limited warranty details.
Page 5
Features and Descriptions
x-ls 2-Way Monitors
Woofer
• Curvelinear Treated Paper Cone Woofer
• Polymer Chassis for Reduced Bafe Resonance
• Proprietary Venting System for Voice Coil Cooling
Tweeter
• Treated Fabric Dome Diaphragm
• Three Layer Pole Piece Damping Treatment
• Ferrouid Voice Coil Thermal Management
x-ls Frequency Response = 55Hz-20KHz, +/-3dB
x-ls Monitor
x-cs 2-Way D’Appolito Monitors
• D’Appolito Alignment optimized for horizontal or vertical orientation
Woofers
• Dual Curvelinear Treated Paper Cone Woofers
• Polymer Chassis for Reduced Bafe Resonance
• Proprietary Venting System for Voice Coil Cooling
Tweeter
• Treated Fabric Dome Diaphragm
• Three Layer Pole Piece Damping Treatment
• Ferrouid Voice Coil Thermal Management
x-cs Frequency Response = 65Hz-20KHz, +/-3dB
x-sub (Back)
x-sub Powered Subwoofer
Amplier
• 150 Watts RMS
• Speaker or Line Level Inputs
• Adjustable Gain
• Selectable 0 or 180° Phase Control
• Adjustable Active Crossover (40-150Hz)
• Signal Sensing Auto ON/Standby Mode
x-sub (Front)
Subwoofer
• 8” Long Throw, Low FS, “Mass Loaded” Woofer
• 32 Ounce Magnet
• 2 inch Voice Coil
• Vented Enclosure tuned at 32Hz (-3dB @28Hz)
Page 6
x-sls 2-Way Towers
Woofer
• Curvelinear Treated Paper Cone Woofer
• Polymer Chassis for Reduced Bafe Resonance
• Proprietary Venting System for Voice Coil Cooling
• Mass Load Stability Chamber in Enclosure for
Enhanced Low End Response
Tweeter
• Treated Fabric Dome Diaphragm
• Three Layer Pole Piece Damping Treatment
• Ferrouid Voice Coil Thermal Management
x-sls Frequency Response = 45Hz-20KHz, +/-3dB
x-mtm 2-Way D’Appolito Towers
Woofers
• Dual Curvelinear Treated Paper Cone Woofers
• Polymer Chassis for Reduced Bafe Resonance
• Proprietary Venting System for Voice Coil Cooling
x-sls Mass Load Chamber
Turn the speaker over (upside down)
and locate the four screws that hold
the base to the speaker. Remove the
base and set aside. Use a standard
(at head) screwdriver to pry out the
stopper. Fill with sand or a heavy,
dense material. Tap the stopper back
in with a rubber mallet or hammer.
Reinstall the base and turn the
speaker back over. Done!
Tweeter
• Treated Fabric Dome Diaphragm
• Three Layer Pole Piece Damping Treatment
• Ferrouid Voice Coil Thermal Management
x-mtm Frequency Response = 40Hz-20KHz, +/-3dB
x-pls 3-Way D’Appolito Towers w/Powered Sub
Same features as the x-mtm Towers with an active 10” subwoofer/12” passive radiator
Subwoofer Amplier
• 150 Watts RMS
• Speaker or Line Level Inputs
• Adjustable Gain
• Selectable 0 or 180° Phase Control
• Adjustable Active Crossover (40-150Hz)
• Signal Sensing Auto ON/Standby Mode
Subwoofer
• 10” High Excursion Woofer
• 12” Passive Radiator
• -3dB @26Hz
Page 7
Speaker Placement Considerations
Back Wall of Room
1/3 2/3
Primary Listening PositionPrimary Listening Position
LEFT RIGHT
Minimum of 3”
from Wall
Achieving the best performance from your AV123 x-series speakers requires several
details to follow when setting up your speakers in their new environment. Tips and
suggestions for the most desirable placement techniques are listed throughout this
section. At the end of this section you will also nd more information on placement
alternatives in unique situations.
Front (Left and Right) Speaker Placement
Regardless of physical placement, always try to place your main speakers (LEFT and
RIGHT) with the tweeter positioned on axis around ear level. This yields excellent sound
quality results. Physical placement of front speakers should be along the same wall of
your listening/viewing room. Although we’ve seen successful installations that didn’t
follow these guidelines, they’re generally more problematic in terms of system response
and accurate theater sound reproduction. Our advice - why re-invent the wheel?
Use the “Rule of Thirds” whenever possible as
a starting guide. This suggests that the best
placement for your LEFT speaker is approximately
1/3 of the way along the wall behind your
speakers. Similarly, the best place for the RIGHT
speaker is usually 2/3 of the way across the same
wall. If at all possible, move the speakers out from
the back wall. Although all rooms are different, we
recommend a minimum wall-to-rear-of-speaker
distance of 3 inches. Whatever distance you
nally select, use a tape measure to make sure
that each speaker is placed at the same distance from the back wall. With that same
tape measure, make sure the speaker-to-listening/viewing position is the same for each
speaker, too. If there’s a conict here (as would happen with an irregular wall behind
the speakers), we suggest that you equalize the distance between front of the speakers
and your favorite listening/viewing position. If that places one speaker closer to the wall
behind it than the other, don’t be too concerned.
Remember that the “Rule of Thirds” is a basic guideline only. Some acousticians
recommend placing the main (LEFT and RIGHT) speakers so that they form an
equilateral triangle with the prime listening/viewing position. This is close to ideal. Notice
different distances between speakers and left and right sidewalls. It’s worth trying for
this ideal, but don’t get overly concerned if your room doesn’t allow this precision.
Side walls have a major impact on the sound you hear. Ideally, you should not place
your main speakers close to them. Remember that the “Rule of Thirds” gives you a good
starting position, but you should feel free to experiment. Ideally, try not to place
your main speakers so they’re exactly the same distance from the closest side walls. A
Page 8
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