Blue Sky International EXO2 User manual

Blue Sky International
70 Sea Lane, Farmingdale, New York, 11735 USA • T: [phone] • F [phone]
www.abluesky.com
Stereo Monitoring System
USER MANUAL
2

2
Important Safety Instructions __ __ __ __ __ __ __ __ __ __ __ Page 3
1 Welcome to Blue Sky __ __ __ __ __ __ __ __ __ __ Page 4
2 Welcome to eXo2_ __ __ __ __ __ __ __ __ __ __ __ Page 4
3 Important notes about eXo2and this Manual __ __ Page 4
4 Expanded Setup Guide _ __ __ __ __ __ __ __ __ __ Page 5
5 System Signal Connections and Level Settings __ Page 6
6 A Tour of the eXo2Amplifier and Remote __ __Page 7 & 8
7 eXo2Mounting and Placement Options __ __ __ __ Page 8
8 Expanded Calibration Guide__ __ __ __ __ __ __ __ Page 9
9 Subwoofer Placement Guide _ __ __ __ __ __ __ __ Page 10
10 Technical Information __ __ __ __ __ __ __ __ __ __Page 11
11 Satellite Cabinet & Remote Dimensions__ __ __ __Page 12
12 Subwoofer Cabinet Dimensions _ __ __ __ __ __ __Page 13
13 Factory Service Instructions _ __ __ __ __ __ __ __Page 14
14 General Contact Details __ __ __ __ __ __ __ __ __Page 14
15 Recycling Information __ __ __ __ __ __ __ __ __ __Page 15
16 FCC Part 15 Compliance _ __ __ __ __ __ __ __ __Page 15
Stereo Monitoring System
USER MANUAL • CONTENTS
Page 2 • User Manual - Contents

2
1 READ INSTRUCTIONS - Read all safety and operating instructions
before operating this product.
2. RETAIN INSTRUCTIONS - Retain these safety and operating
instructions for future reference.
3. HEED WARNINGS - Follow all warnings on this product and in the
operating instructions.
4. FOLLOW INSTRUCTIONS - Follow all operating and use
instructions.
5. ATTACHMENTS - Do not use attachments not recommended by
the product manufacturer as they may cause hazards.
6. WATER AND MOISTURE - Do not use this product near water - for
example, near a bathtub, washbowl, kitchen sink, or laundry tub;
in a wet basement; or near a swimming pool; and the like.
7. ACCESSORIES - Do not place this product on an unstable cart, stand,
tripod, bracket, or table. The product may fall, causing serious
injury to a child or adult, and serious damage to the product. Use
only with accessories recommended by the manufacturer, or sold
with the product. Any mounting of the product should follow the
manufacturer’s instructions and should use a mounting accessory
recommended by the manufacturer.
8. POWER SOURCE - This product should be operated only from the
type of power source indicated on the marking label on the back
of the product. If you are unsure of the type of power that is
supplied to your home, consult your product dealer or local power
company.
9. LIGHTNING- For added protection for this product during a lightning
storm, or when it is left unattended and unused for long periods
of time, unplug it from the wall outlet. This will prevent damage to
the product due to lightning and power-line surges.
10. OVERLOADING - Do not overload wall outlets or extension cords as
this can result in a risk of fire or electric shock.
11. LIQUID ENTRY - Never spill any liquid of any kind on the product.
12. SERVICING - Do not attempt to service this product yourself.
Opening or removing covers, including any over bottom or side speaker
drivers, may expose you to dangerous voltage or other hazards. Refer
all service to qualified service personnel.
13. DAMAGE REQUIRING SERVICE - Unplug this product from the wall
outlet and refer servicing to qualified personnel under the following
conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into this product.
c. If the product does not operate normally by following the operat-
ing instructions. Adjust only controls that are covered by the
operating instructions as an improper adjustment of other con-
trols may result in damage and will often require extensive work
by a qualified technician to restore the product to its normal
operation.
d. If the product has been dropped or damaged in any way.
e. When the product exhibits a distinct change in performance - this
indicates a need for service.
14. REPLACEMENT PARTS - When replacement parts are required be sure
the service technician has used replacement parts specified by the
manufacturer or have the same characteristics as the original part.
Unauthorized substitutions may result in risk of fire, electric shock, or
other hazard.
15. SAFETY CHECK - Upon completion of any service or repairs to this
product, ask the service technician to perform safety checks to
determine that the product is in proper operating condition.
16. HEAT - This product should be situated away from heat sources such as
radiators, heat registers, stoves, or other products that produce heat.
Stereo Monitoring System
USER MANUAL • SAFETY INSTRUCTIONS
User Manual - Safety Instructions • Page 3

Stereo Monitoring System
USER MANUAL • 1 – 3 • Welcome & Important Notes
Page 4 • User Manual • Welcome & Important Notes
2
1. Welcome to Blue Sky
World-renowned for their accurate, full-range sound, Blue Sky speaker
monitoring systems are used in critical listening applications by audio
professionals in a wide variety of industry sectors. Emmy Award-winning
sound editor Eric Lalicata, Grammy Award-winning engineer/remixer Roger
Sanchez and legendary Talking Heads keyboard/guitarist Jerry Harrison all
rely on Blue Sky speakers to check the accuracy of their work before it
goes public. And it’s the same story at film sound facility Skywalker Sound
and broadcaster ESPN, where Blue Sky speakers once again provide an
important link in the production chain.
Blue Sky’s fresh approach to loudspeaker monitor design delivers the
highest possible ratio of performance to cost, in turn providing the highest
value to our customers.
Making the subwoofer (SUB) an integral part of the monitor system design
enables the satellite speakers to be placed for the best imaging, and the
SUB to be positioned for the best bass response. Relieving the satellite
speakers of the requirement to reproduce the low frequencies means that
uncompromised, sealed-box designs can combine with sophisticated bass
management to provide a seamless transition between SATs and SUB.
It all adds up to accurate, full range sound.
www.abluesky.com
2. Welcome to eXo2
Your new eXo2system is more than a set of external speakers for your
computer. It’s a complete desktop audio reference monitoring system from
Blue Sky – the people that make the monitors used in professional recording
and production studios worldwide.
Your eXo2system consists of a subwoofer (which also contains the amplifiers
and bass management circuitry), Left and Right satellite speakers, and a
remote control.
In this box, you will find:
1 x eXo2subwoofer
2 x eXo2satellite speakers
1 x eXo2Remote (HUB)
1 x eXo2HUB cable
2 x Sets speaker wire
1 x Warranty card
1 x Owner’s manual
3. Important Notes about eXo2
and this manual
WARNING: Turn off power when connecting or disconnecting the remote /
pre-amp from the back of the subwoofer (SUB).
EARPHONES / HEADPHONE LEVEL WARNING: Permanent hearing loss
may occur if earphones or headphones are used at high volume.
THE OWNERS MANUAL
Please read this owner’s manual carefully and contact Blue Sky International
if you have any comments or questions. Contact information can be found
on page 14 or you can visit:
www.abluesky.com

Stereo Monitoring System
USER MANUAL • 4 • Expanded Setup Guide
User Manual • Expanded Setup Guide • Page 5
2
1. If you haven’t already done so, carefully remove all items from the
packaging and confirm that everything that is listed on page 4 is
included. [Welcome to eXo2].
2. eXo2is compatible with XLR, TRS, RCA and 3.5mm stereo plug
input connections and can be used simultaneously. You will
need a total of two (2) XLR, TRS or RCA inputs cables, or one
3.5mm stereo cable, for a stereo monitoring configuration (input
cables not supplied). For more information on connecting your
system, please see page 6 [System Signal Connection and Level
Settings].
3. The first step in the installation process is to position the active
subwoofer (SUB). Although you have great flexibility with regard
to where the active SUB can be placed, a good starting point is
centered between the left and right satellite speakers. This could
be under a console / desk, behind the console / desk, etc. For an
expanded SUB placement guide, please see page 10 [Subwoofer
Placement Guide].
4. Once the SUB is in position, confirm the power is off,
then connect the remote DIN plug into the SUB plug labeled
“PREAMP”. Next connect the two input cables from the left and
right analog outputs from the mixing console, digital workstation
or other source, to the left and right inputs on the eXo2remote
control / pre-amp. For more information on connecting your
system, please see page 6 [System Signal Connection and Level
Settings].
5. Placing the eXo2SATs: The recommended position for the SATs is
based on an ITU standard and sets the speakers at 60 degrees
from the listener, forming an equilateral triangle (a triangle with
equal sides) - See Figure 1. Fortunately, this setup eliminates
most of the math and is easily simplified to the following
guidelines: If you want to sit 1 meter (39.37 inches) from the
speakers, place the speakers 1 meter apart. If you want to sit
2 ft from the speakers, place the speakers 2 ft apart. Etc. The
monitors can be positioned on a console, desk, or mounted using
wall mount brackets, etc. For more information see page 8 [eXo2
SAT mounting and placement options].
6. Connect the speaker wire from the left high-level outputs on the
back of the SUB, to the inputs on the left SAT. Now do the same
for the right channel, connecting the right output to the right
SAT. Please make sure that you connect positive to positive and
negative to negative, so that both SATs are in-phase, and also
confirm that the connections are not shorted between positive
and negative terminals. Lastly, please plug in the power cord to
the IEC connector on the back of the SUB (International / non
North American version only). Prior to proceeding, confirm
that the system is wired correctly, as shown on page 6 [System
Signal Connection and Level Settings].
7. At this point the Blue Sky monitoring system is correctly
configured, and ready for the final steps in the installation. Prior
to plugging the system into the wall outlet, and powering up
the system, do a final quick check of all connections and level
settings and turn down the gain, to the minimum setting.
8. If everything is correct, plug the power cord into the wall outlet.
Do not turn on the power switches, yet! Some mixers and
out-board equipment such as D-to-A converters and equalizers
generate loud rail-to-rail pops when they initially turn-on.
Depending on the gain setting of the monitoring system, these
pops could damage the monitors. To avoid this, always turn
on equipment in the following sequence: All sources and
mixer first, and then the eXo2monitoring system, or set
the GAIN to the minimum setting / fully counterclockwise,
until everything is powered on.
9. At this point the Blue Sky monitoring system is fully operational,
and ready for use. Begin by playing familiar pieces of music
which can assist you in fine-tuning the exact positioning of both
the SATs and SUB, along with optimizing the system gain and
level of the SUB (a good starting point is the middle circle on the
SUB knob). It is important to remember that the positioning of
the SUB will impact the its output level. You may find it necessary
to adjust the level of the SUB depending on its location. This is
OK, and is anticipated. For more information, see page 6 [System
Signal Connection and Level Settings].
10. For a more exacting setup, using test signals and a SPL meter,
please see Page 9 [Expanded Calibration Guide].
11. Just remember - Use your ears, they are the best audio tool you
have and you will be amazed how accurate the setup can be if
you use familiar audio material during the setup of the system.
12. Congratulations! You have now completed the set up of one of
the world’s finest studio monitoring systems. If you have any
questions, please do not hesitate to contact us directly with your
questions. [phone] (9:00am to 5:30pm EST) or e-mail:
[e-mail]
Figure 1

Stereo Monitoring System
USER MANUAL • 5 • System Signal Connections and Level Settings
Page 6 • User Manual • System Signal Connections and Level Settings
2
Below are some basic outlines of ways someone may interface eXo2with
their audio system. These may or may not apply to your specific application,
but they should be able to show the basic concept for most applications.
Please note that all inputs can be used simultaneously.
CABLE WIRING SPECIFICATIONS
Most users of the eXo2system will be using ready made cables,
however if you need to wire your own cables, follow the wiring
specifications below.
XLR / TRS ‘COMBO’ INPUTS (ELECTRONICALLY BALANCED)
Figure 2: Shows the XLR inputs being fed from the output of a
standard pro audio mixer. The eXo2XLR / TRS inputs can handle
up to +30dBu of signal level at the input, when the input gain
switch is set to the -12dB position, and are compatible with most,
if not all professional gear.
RCA AND 3.5mm STEREO INPUTS
Figure 2: The RCA and 3.5mm inputs on eXo2are compatible with
a myriad of consumer and computer audio gear, such as mixers,
CD players, Hi-Fi pre-amps, mp3 players etc.
3.5mm HEADPHONE / EARPHONE OUTPUT
Located on the front of the eXo2remote / preamp
is a 3.5mm headphone jack. The impedance of the
headphones should be 16 ohms or above. When headphones are
connected to this jack, the output to the eXo2Stereo Monitoring
System is muted. Warning: Permanent hearing loss may
occur if earphones or headphones are used at high
volume.
SPEAKER LEVEL OUTPUTS AND INPUTS
This drawing shows the proper way to insert
bare wire into the binding posts which are on
the subwoofer outputs and SAT inputs. When
inserting bare wire, please make sure that
there are no strands protruding out that may create a short-
circuit. These binding posts are compatible with wire gauges up
to approximately 10 gauge.
REMOTE / PREAMP AND SAT CONNECTIONS
Figure 3, shows the basic connections of the included system
components. Please note: Turn off power when connecting
or disconnecting the remote / pre-amp from the back of the
subwoofer.
SYSTEM GAIN AND SUBWOOFER LEVEL
Shown in the drawing below are some basic guidelines for setting
both the system gain and subwoofer level.
System Gain (GAIN): You will notice that the normal gain /
level setting for headphones is lower, when compared to typical
setting when using the eXo2stereo monitoring system. In order
to avoid unpleasant and possibly dangerous headphone playback
levels, always turn down the system gain when going to or from
headphones. Warning: Permanent hearing loss may occur if
earphones or headphones are used at high volume.
Subwoofer Level (SUB): There are several marks around the
SUB level knob, which show some general guidelines for setting
SUB level. Because all rooms / studios are unique, your actual
SUB level setting may vary.
IN OUT
Figure 2
Figure 3
NORMAL VOLUME WHEN
PLAYING BACK A CD
REF=85dB SETTING IF SUB IN CORNER
STARTING POINT
FOR SUB VOLUME
SETTING IF SUB IN
MORE OPEN SPACE
NORMAL VOLUME WHEN
USING HEADPHONES
2

Stereo Monitoring System
USER MANUAL • 6 • A tour of the eXo
2
amplifier and Remote
User Manual • A Tour of the eXo2Amplifier and Remote • Page 7
2
1. SPEAKER OUTPUTS - These are high quality binding posts that
are compatible with both bare speaker wire and other speaker
connectors (such as spades and signle banana plugs). Please
always maintain proper phase and be careful to avoid short-
circuits between output terminals.
2. REMOTE / PREAMP INPUT: Turn off power when connecting
or disconnecting the remote / pre-amp from the back of the
subwoofer.
3. POWER SWITCH - Controls the power to all the three amplifiers
and all internal electronics.
5. IEC 320 Receptacle, with detachable power cord and integral
fuse holder. Replace fuse with same rating and type listed on the
back panel. 115V applications use a 5 x 20mm, T 2 Amp 250V
(time delay). 230V applications use a 5 x 20mm, T 1 Amp 250V
(time delay).
1. REMOTE / PREAMP CONNECTOR - This connector is used with
the included multi pin cable, which connects the remote to the
subwoofer. Turn off power when connecting or disconnecting the
remote / pre-amp from the back of the subwoofer.
2. LEFT XLR / TRS ‘COMBO’ INPUT (ELECTRONICALLY BALANCED):
This LEFT XLR / TRS input should be connected to the Left output
of your console or digital workstation. This input is electronically
balanced. Do not connect more than one source to this input.
Refer to page 6 for more information [System Signal Connection
and Level Setting]
3. LEFT and RIGHT RCA IN - These are unbalanced RCA type inputs
that are designed to work with -10 dBV sources, such as consumer
sound cards, CD players, some mixers, etc. Refer to page 6 for
more information [System Signal Connection and Level Setting].
4. RIGHT XLR / TRS ‘COMBO’ INPUT (ELECTRONICALLY BALANCED):
This RIGHT XLR / TRS input should be connected to the Right
output of your console or digital workstation. This input is
electronically balanced. Do not connect more than one source to
this input. Refer to page 6 for more information [System Signal
Connection and Level Setting]
continued on page 8
Please note that all inputs can be used simultaneously.
1
2
34
234
1

Stereo Monitoring System
USER MANUAL • 6 & 7 • A Tour of the eXo
2
Remote (continued) • eXo
2
Mounting and Placement Options
Page 8 • User Manual • A Tour of the eXo2Remote (continued) • eXo2Mounting and Placement Options
7. eXo2Mounting and
Placement Options
Wall Mount Options (not shown)
The single 1/4” X 20 insert on the back of the eXo2SAT is
compatible with BT Technologies BT-33 Brackets (www.btech-usa.
com) and is also compatible with OmniMount’s type 10 Series of
wall / ceiling brackets (www.omnimount.com). For more details
on this mounting insert please see page 12 [Satellite Cabinet
Dimensions].
Please Note: Mounting a studio monitor, such as the eXo2
SAT, should be done by qualified persons in accordance with
all applicable local safety and construction standards. Also be
certain to follow the instructions provided by the manufacturer of
the mounting brackets.
6. Tour of the eXo2Remote
(continued)
1. 3.5mm STEREO INPUT - This unbalanced input is designed to
work with sources such as consumer sound cards, CD players,
mp3 players, etc. It has 6dB more gain when compared to the
RCA inputs. Refer to page 6 for more information [System Signal
Connection and Level Setting].
2. 2.1 SYSTEM GAIN (GAIN) - This knob controls the overall system
gain. The subwoofer gain knob [item 4 detailed below], tracks
this setting.
3. POWER INDICATOR LED - This LED, when lit, indicates that the
unit remote is connected to a powered eXo2Subwoofer.
4. SUBWOOFER GAIN (SUB) - This knob controls the relative SUB
level as compared to the overall system output. This setting
tracks the overall system level. For more information on setting
SUB level, please refer to page 5 [Quick Setup] and page 9
[Expanded Calibration Guide].
5. 3.5mm STEREO HEADPHONE / EARPHONE OUTPUT - This output
is designed to connect to headphones or earphones. When
connected, the output of the eXo2Stereo Monitoring System is
muted. Please turn down the system GAIN (item 2 in this list),
when switching between headphones / earphones and the eXo2
Stereo Monitoring System.
Warning: Permanent hearing loss may occur if earphones or
headphones are used at high volume.
Please note that all inputs can be used simultaneously.
2
4
125
3

Stereo Monitoring System
USER MANUAL • 8 • Expanded Calibration Guide
User Manual • Expanded Calibration Guide • Page 9
Instructions for electroacoustic calibration of a 2.1 audio system
using a SPL meter and Blue Sky’s test files.
Before starting this procedure you will need to download BlueSkyTestFiles.
zip (an 15 MB zip file) by going to:
www.abluesky.com
Once downloaded, either burn the test files to a CD or import them into your
DAW and follow the instructions below.
ADDITIONAL REQUIRED ITEMS
1. 2.1 Monitoring System
2. SPL Meter - such as those sold by (RadioShack)
BlueSkyTestFiles.zip Includes 4 files:
• 1000Hz SINEWAVE -20dBFS.wav – a 1kHz file recorded at -
20dBFS for electrical calibration
• 40-80Hz PINK NOISE -20dBFS.wav – a 40Hz to 80Hz bandwidth
limited pink-noise file recorded at -20dBFS
• 500-2.5kHz PINK NOISE -20dBFS.wav – a 500Hz to 2.5Hz
bandwidth limited pink-noise file recorded at 20dBFS
• Pink Noise full bw -20dBFS.wav – a full-bandwidth pink-noise file
recorded at - 20dBFS
These test files are all mono files. Please make sure you hard assign them
to the left and then the right, not both channels at the same time. If you are
using a CD player use only one channel of the CD player.
THEORY
The purpose of calibration is to adjust the overall electroacoustics system
gain so that 0dBVU of electrical signal level equals a certain acoustic level
at the listening position. Since most recording media is now digital, the
reference electrical signal level is usually –20dBFS with 20dB of headroom.
The reference SPL level however can vary based on the delivery media and
speaker type.
Please note that the bandwidth limited signals that have been provided, limit
many of the room interaction affects often associated with measuring SPL
and broadband pink noise.
All test signals are recorded at –20dBFS including the 1 kHz sine wave tone.
The sine wave tone is used to set the electrical output level throughout the
signal path, right up to the point you get to the speakers, while the various
pink noise signals are used for acoustic measurements and calibration.
The following procedure assumes you are calibrating the system to 85dBc
SPL.
Step 1 TURN OFF THE MONITORING SYSTEM (until step 4)
Step 2 Remove all eq and dynamics from the signal path and set all
controls to zero / unity gain. Play the 1kHz Sine Wave, hard
assign it to the left channel only, and adjust the output fader
so the output meter reads -20dBFS. If you are using an analog
console, set the output level to 0 VU. Then hard pan the signal to
the right channel output and repeat for the right channel. Once
calibrated do not move the output faders.
Step 3 Mute everything and make sure the 1kHz tone is OFF .
Step 4 Now that the system has been electrically calibrated
turn ON the eXo2Stereo Monitoring System.
Step 5 Assign the 500-2.5kHz pink noise signal to the left channel
or right channel only. Make sure there is nothing coming from
the right channel (or any other channels). Because this signal
is bandwidth limited, you don’t have to worry about turning the
subwoofer (SUB) off. There are two methods of setting the
levels.
A. If you have a master monitor level control, you can set the
sat gain control at reference and then adjust the eXo2GAIN
control for 85 dBc. Then mark the monitor level as your reference
position.
B. The other method is to set eXo2master GAIN control to the
position you want as a reference level and then use your own
volume controls to set 85 dBc. If you use this method you should
mark the knob position with a grease pencil so you can always go
back to reference level if the knob gets moved.
For either method:
SPL should be measured at the mix position, with the SPL meter
at arms length, with the microphone at seated ear height, angled
at approximately 45 degrees, and pointed at the center point
between the left and right speakers. Once the left channel is set
to 85dBc, repeat this step for the right channel
Step 6 Feed 40-80Hz pink noise signal to the left channel only. Adjust
the subwoofer level control (SUB) until the subwoofer measures
85dBc (slow) at the mix position. The meter will bounce around
a little, so you will need to do a mental average (I tend to filter
out the peaks in my mind, so I don’t set the SUB too hot). The
right channel should measure about the same and no additional
adjustments need to be made.
Step 7 You can play the full-bandwidth pink noise, assigning it to the left
and then the right channel (not at the same time). You should
measure about 85dBc. It may be a little higher, because below
30Hz the room may have a little extra gain. No adjustments
should be made with Full Bandwidth pink noise, unless you have
an RTA (real time analyzer).
Step 8 You are finished and the calibration process has been completed
– enjoy!
2

Stereo Monitoring System
USER MANUAL • 9 • Subwoofer Placement Guide
Page 10 • User Manual • Subwoofer Placement Guide
The low frequency response and efficiency of a subwoofer are heavily
influenced by the acoustics of the playback environment. More specifically,
the response is influenced by the room’s dimensional ratios, types of
construction and location of the subwoofer within that environment. You
can significantly improve the subwoofer’s in-room response and efficiency
by experimenting with various room placements until you find an optimum
location.
When placing the subwoofer there are several general guidelines that should
be kept in mind. These include:
• Every acoustic space is unique and experimentation is an
important key in finding the best possible location in your
particular environment.
• A subwoofer becomes more acoustically efficient (has greater
output) as you move it closer to a room surface (e.g. wall or
floor).
• A subwoofer will give maximum output and maximum acoustic
excitement when it is located in a corner.
• Under certain acoustic conditions corner locations are optimum;
in others they can excite multiple “room modes”, producing
“muddy” or “boomy” sound.
The following methods have been found to work successfully under most
conditions:
The first method described below doesn’t require any special test
equipment. It does require a pair of good ears and familiar broad-spectrum
music material – recordings with lots of energy across a wide frequency
range (from low to high). The recordings should be highly dynamic and be
of relatively high quality.
The second subwoofer placement method requires using a real time
analyzer – such as those made by Gold Line™ or The Audio Toolbox(TM)
by TerraSonde(TM). Although many home audio enthusiasts may not have
access to this equipment, if you are having a sound system or home
theatre system professionally installed, this information may be useful to
the installer.
Method 1
Place the subwoofer at the main listening position and connect
and make sure it is properly connected to your receiver. Turn
on the CD or music source and make sure that the level of the
subwoofer has been raised high enough so that low frequencies
are not masked by the background noise in the room. Once you
have roughly balanced the level, between the subwoofer and main
speakers, move around the room and pay careful attention to
where the spectral response is smoothest and has the greatest
low frequency extension, pay special attention to the corners
and along the walls. Also, make sure to pay attention to where
the system has its’ greatest impact and definition. You are not
just listening for the most boom, but rather where the bass is
most accurate and natural sounding. Remember, because the
subwoofer is basically omni-directional, the best spot for the
subwoofer can be next to, or even behind, the main monitoring
area.
After finding the spot where the subwoofer has the best response
in the room, place the subwoofer in that location. Now, listen
from the main position and confirm that the subwoofers response
is similar to when the positions were reversed. If it is, then leave
the subwoofer in that location. If not, continue to experiment with
the subwoofer location until the most accurate and best response
has been achieved.
Method 2
Subwoofer placement using a real time analyzer – Such as those made by
Gold Line™ or The Audio Toolbox™ by TerraSonde™.
Place the subwoofer at the main listening position and connect the
subwoofer to your pink noise generator. Turn on your pink noise
generator and make sure that the level of the subwoofer has
been raised high enough so that low frequencies are not masked
by the background noise in the room. Now set the analyzer to
1/12 octave resolution (or whichever setting provides the highest
resolution on your particular analyzer), real time mode and begin
to take measurements around the room. If the analyzer you are
using has the ability to do real time averaging, then use this
function to better analyze the spectral response.
As you walk around the room, be sure to pay careful attention to
where the spectral response is smoothest and has the greatest
low frequency extension, pay special attention to the corners and
along the walls. Remember, because the subwoofer is basically
omni-directional, the best spot for the subwoofer can be next to,
or even behind, the main monitoring area.
After analysing the data and finding the spot where the subwoofer
has the best response in the room, place the subwoofer in that
location. Now, take some additional measurements from the
listening position and confirm that the subwoofers response is
similar to when the positions were reversed. If it is, then leave the
subwoofer in that location. If not, continue to experiment with the
subwoofer location until the smoothest and best response has
been achieved.
Additional Notes
It has been found that a subwoofers’ in-room response can sometimes be
improved by facing the drivers toward a wall. Again, experimentation is the
key to finding the best possible location.
Properly designed subwoofers generate tremendous energy, so
they may vibrate objects close to them. If you hear buzzing or
vibrating objects, make sure to try and dampen those objects.
Rattling, buzzing and other sympathetic resonances can make
the subwoofer localizable and therefore should be avoided. Using
a sine wave generator can be helpful in locating these acoustic
anomalies.
2

Stereo Monitoring System
USER MANUAL • 10 • Technical Information
User Manual • Technical Information • Page 11
This next section outlines the components, specifications and performance
data that make this product such a uniquely high value.
In order to continually improve all of its products, Blue Sky reserves the right
to change these specifications without notice.
eXo2Specifications
General Specifications
Input Impedance
XLR / TRS Combo
60k Ohms balanced Input gain = +0dBu
RCA input:
30k Ohms unbalanced
3.5mm (front panel input)
15k Ohms unbalanced
Common Mode Rejection Ratio
40 dB typical @ 60Hz (balanced inputs only)
Maximum Input Level
+18 dBu XLR / TRS/ RCA Input gain = +0dBu
+12 dBu 3.5mm / Mini-Jack (front panel input)
Voltage Sensitivity
200mV = 90 dB SPL @ 1m XLR/TRS (input gain = 0dBu)
200mV = 90 dB SPL @ 1m RCA
200mV = 96 dB SPL @ 1m 3.5mm (front panel input)
Note: 200mV = -11.75 dBu = -14 dBV
Amplifier power output Note:
All power output measurements made with
the speaker protection circuits disabled. Long term power output is limited
by the speaker protection circuitry.
Short term power output 1 channel driven:
42 watts x 1 @ <.1% THD into 4 ohms @ 1 kHz
Short term power output 2 channels driven :
35 watts x 2 @ <.1% THD into 4 ohms @ 1 kHz
Subwoofer power output:
110 watts x 1 @ <1% THD into 4 ohms @ 50 HZ
3.5mm headphone output:
4 mW x 2 @ <.2% THD into 16 ohms @ 1 kHz
Mains voltages:
115V / 60Hz (North American Version)
230V / 50Hz (Export)
Voltage is set at the factory
Maximum power consumption:
240 watts
Fuse Type and Rating:
115V = 5 x 20mm, T 2 Amp 250V (Time Delay).
230V = 5 x 20mm, T 1 Amp 250V (Time Delay)
Satellite
• The single 1/4” X 20 insert on the back of the eXo2SAT is
compatible with BT Technologies BT-33 Brackets (www.btech-usa.com)
and is also compatible with OmniMount’s type 10 Series of wall / ceiling
brackets (www.omnimount.com). For more details on this mounting insert
please see page 12 [Satellite Cabinet Dimensions]
• Dimensions:
7.2” H X 4.8” D x 5” W
18.1 cm X 12.1 cm x 12.7 cm
• Weight 3 lbs. / 1.36 kg
• 3” cast frame woofer, Neodymium motor structure
• 1” fabric Neodymium tweeter
• Fully Video Shielded
• Satellite Low frequency crossover 140 Hz
• Tweeter Crossover Frequency 2200 Hz
• Nominal SAT impedance 4 Ohms
The following specifications are measured using the eXo
2
Amplifier
• Frequency Response Satellite
+/- 2.0 dB 200 Hz to 10 kHz
+/- 3.0 dB 140 Hz to 20 kHz
8” Sealed Box Subwoofer
• 8” woofer, vented motor, paper cone with foam surround
• Fully video shielded,
• Isolation feet are included
• Dimensions:
(subwoofer only)
9.4” H x 9” W x 10.2” D
23.9 cm x 22.9 cm x 25.9 cm
• Weight 20 lbs. / 9.07kg
• Frequency Response Subwoofer
Anechoic Response:
35 to 140 Hz +/-6dB
Typical In-Room Response:
20 to 200 Hz (1500 Cubic Feet)
2

Stereo Monitoring System
USER MANUAL • 11 • Satellite Cabinet & Remote Dimensions
Page 12 • User Manual • Satellite Cabinet & Remote Dimensions
2
5.00 "
127.0 mm
7.12 "
181.0 mm
4.75 "
120.7 mm
5.00 "
127.0 mm
4.75 "
120.6 mm
7.00 "
177.8 mm
2.00 "
50.8 mm
2.50 "
63.5 mm
1/4" X 20 THREADED INSERT
2.01 "
51.0 mm
4.63 "
117.6 mm
3.99 "
101.3 mm
4.84 "
123.0 mm

Stereo Monitoring System
USER MANUAL • 12 • Subwoofer Cabinet Dimensions
User Manual • Subwoofer Cabinet Dimensions • Page 13
2
9.00 "
228.6 mm
9.00 "
228.6 mm
9.35 "
237.5 mm
6.89 "
175.0 mm
6.50 "
165.1 mm
9.50 "
241.3 mm
10.13 "
257.3 mm

Stereo Monitoring System
USER MANUAL • 13 & 14 • Factory Service Instructions • General Contact Details
Page 14 • User Manual • Factory Service Instructions • General Contact Details
13. Factory Service
Instructions
Service for the U.S. versions of Blue Sky products is available only from our
authorized distributor, Group One Ltd., located in Farmingdale, New York.
(Service for Blue Sky products outside the United States can be obtained
through local dealers or distributors.) If your monitor needs service, follow
these instructions:
1. Review the manual and ensure that you have followed all setup
and operating instructions.
2. Call [phone] 9:00am to 5:30pm EST and ask for
Customer Service. Explain the problem and request an RA (Return
Authorization) number. It is important to have your product serial
number available when you call. You must have an RA number
before you can obtain service.
3. Pack the product in its original packing material and box. Please
do not return the manual or power cord, if detachable (international
/ non North American version only). If you don’t have the original
packing material and/or box, please let Customer Service know
when you call for the RA number. Blue Sky is not responsible for
any damage that occurs due to non-factory packaging.
4. Include a legible note stating your name, shipping address (no
P.O. boxes), daytime phone number, RA number, and a detailed
description of the problem, including how it can be duplicated
5. Write the RA number on the top of the carton.
6. Ship the product to the address below. We recommend United
Parcel Service (UPS). Please insure the product regardless of
shipping method.
Blue Sky International
ATTN: SERVICE DEPT / RA#
70 Sea Lane
Farmingdale, NY 11735
USA
7. Turnaround time is three to five business days depending on the
problem. When calling for RA numbers, please ask Customer
Service what the turnaround time is. The serviced product will be
sent back to you via the same shipping method as received (i.e. if
you ship your monitor UPS Ground it will be returned UPS Ground,
UPS Red will be returned UPS Red etc...). This only applies to
products serviced under the warranty.
14. General Contact Details
For sales and other enquiries, please contact Blue Sky at:
Blue Sky International
70 Sea Lane
Farmingdale, NY 11735
USA
tel: [phone]
fax: [phone]
email: [e-mail]
To discover the very latest information check out our website at:
www.abluesky.com
2

User Manual • Recycling Information • FCC Part 15 Compliance • Page 15
Stereo Monitoring System
USER MANUAL • 15 & 16 • Recycling Information • FCC Part 15 Compliance
15. Recycling Information
Blue Sky products are designed to last many years. However, if it turns out
that your Blue Sky product is damaged beyond repair, please take care that
it is properly recycled in an authorized recycling facility and in accordance
with all local environmental legislation.
Dismantling of Blue sky products should be done by qualified
individuals only. End users should not attempt to dismantle any Blue
Sky product!
Note the following aspects about recycling some of the main components of
our eXo2Stereo Monitoring System:
Packing material: Cardboard and plastic can be recycled or burned in a
waste disposal oven.
Studio Monitor / Speaker Drivers: These items contain several different
materials so they should be dismantled for recycling.
The eXo2SAT baffle and Remote Baffle: These items are made of plastic
which is well suited to recycling.
Amplifier Plate and Remote Case: These items made of aluminium and
can be recycled when all components have been removed.
Amplifier and Other Electronic Components: These items can be
recycled according to your local electronic equipment recycling standards.
Do not burn any of the amplifier components.
Cables and Connectors: These items can be reused in a suitable
application or recycled according to your local electronic equipment
recycling standards.
Cabinets: MDF cabinets can be burned in a controlled high temperature
waste disposal oven.
16. FCC Part 15 Compliance
This device complies with part 15 of the FCC rules. Operation is
subject to the following two conditions:
This device may not cause harmful interference, and
This device must accept any interference received, including
interference that may cause undesirable operation.
Note: This equipment complies with the limits of part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning equipment on and off, the
user is encouraged to try to correct the interference by one or more of the
following measures:
Reoriented or relocate to receiving antenna
Increase the separation between equipment and receiver.
Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for
help.
Modifications not expressly approved by the manufacturer could void the
users authority to operate equipment under FCC rules.
2

Blue Sky International
70 Sea Lane, Farmingdale, New York, 11735 USA • T: [phone] • F [phone]
www.abluesky.com