Boston Acoustics BA7500 User guide
Digital BA7500
TM
5.1 Dolby
®
Digital Surround Speaker System
Slimline SpeakerTechnologyTM (SSTTM)
4-Channel Sound Card Compatibility
This Package Contains:
1 Amplified subwoofer
2 Front SST satellite speakers with captive cords
2 Rear SST satellite speakers with 20' captive cords
3 Satellite speaker desktop stands
1 Audio controls pod/stand with captive DIN cable
1 Digital input RCA cable
1 Unified stereo analog cable for front and rear input
1 8" “Y” adapter cord for rear speaker output
4 Self-adhesive rubber feet for subwoofer
1 Pack of self-adhesive rubber feet for satellites
1 Transformer with power cord
1 RCA-to-phono adapter
2 Rear surround tower stands
Description
Quality theater audio for the desktop has arrived. Using an internal Dolby
®
Digital surround processor, the
Digital BA7500 delivers 5.1 movie audio from your PC’s DVD-ROM without the need for a separate
receiver or decoder. Four Boston SST™ (Slimline SpeakerTechnology™) satellites, an amplified
subwoofer and the processor’s“virtualized”center create six distinct cinema sound fields. With a 4-
channel sound card, it brings multi-channel PC gaming to a new level of realism. As a stereo music
system, the BA7500 has maintained the highest level of fidelity, equal in performance to some shelf
monitors.
Building on Boston’s proven 6½
"
bandpass subwoofer, the technological highlight of the Digital BA7500 is
the four SST satellites. Boston sets the standard:The technology found in the SST’s allows us to deliver
the same high-fidelity audio found in Boston’s larger home theater products and still maintain a sleek,
attractive profile. Front pedestal stands, rear tower stands, a desktop audio control pod and extra-long
surround cables make for easy 3D positioning and operation. Desktop controls include MasterVolume,
SurroundVolume, Surround Balance and Subwoofer Level. Each satellite is protected by magnetic
shielding to prevent video interference.
Specifications
FREQUENCY RESPONSE (±3dB) 45Hz - 20,000Hz
MAXIMUM SOUND PRESSURE LEVEL (0.7m) 107dB
SUBWOOFER 6
1
/2" (165mm)
SATELLITES SST
TM
Panels
CROSSOVER FREQUENCY 170Hz
DIMENSIONS (HxWxD) Subwoofer
11
3
/4x 7 x 14
5
/8" (299 x 178 x 372mm)
Satellites (h xw xd / without stand)
9
11
/16 x 4
1
/16 x 1
1
/8
"
(246 x 103 x 29mm)
WEIGHT Subwoofer
11.1 lbs. (5.0 kg)
Satellites
0.8 lbs. (0.4 kg) each (without stand)
FINISH Computer Gray & Charcoal Screen
Additional Features:
Manual on/off control
(Turn
“
Volume
”
control far left)
Optional Virtualized Dolby Surround effect when used
as a 3-piece system
Variable desktop audio controls
(Master Volume, Surround Volume,
Surround Balance & Subwoofer Levels)
Long rear speaker cords and tower stands for
accurate positioning
Dolby
®
Digital (AC-3) processing built in and/or 4-
channel sound card compatibility
Keyhole hooks on all satellites for wall mounting
1. Front Speaker Assembly
a
) For desk or shelftop positioning, use the 3 desktop
stands and 1 integrated audio control pod/stand
(normally placed on right side of monitor). Simply slide
each stand's lip into the SST satellite speaker's
underside groove.
b
) Attach rubber pads to bottom tips of each desktop
stand. The rubber pads absorb vibrations between the
speaker and the desktop for a cleaner sound.
c
) Optionally, the two rear speakers (or all four) may
be wall mounted using the formed keyhole on the rear
panel of each satellite speaker. Any standard nail,
picture hook, etc. will work. (Not included. Consult a knowledge-
able installer about the proper hardware to use on your wall.)
d
) Connect each of the front two SST satellites to
their respective red or white RCA jack on the rear of
the subwoofer (labeled "Front Speakers"). Red is the
right front; white is the left front.
e
) Adhere subwoofer's rubber feet to each corner.
2. Rear Speaker &Tower Stand Assembly
f
) First, snap on the slide caps to the top of each tower
tube. Then feed the connection cord from each SST
satellite down through the tube. Next, slide each
satellite speaker on to top of tower tube, making sure
the cords are not being pinched. Finally, with the cord
passing through the bottom of the tower tube, slide on
each of the three stability legs. The cord should pass
freely through the intersection of the three stablility legs.
g
) Using the supplied 8"
Y
adapter cord, plug the pink
end into the phono jack labeled "Rear Speakers" on the
of back the subwoofer. Next, connect each of the rear
satellite cords to their respective red or white RCA jack
on the end of the 8"
Y
adapter cord; red to red, white to
white.
NOTE: For proper positioning, the right rear speaker
should be behind your right shoulder when facing your
computer monitor, and the left rear speaker should be
behind your left shoulder when facing your computer
monitor.
1
NOTE: Words in bold are parts included in your package; see appendix for parts list and illustrations.
or
wall
a
c
b
Back of subwoofer
or
i2
) My sound card has 2 STEREO LINE OUTPUTS
(4-channel): For sound cards with a 4-channel
gaming configuration, use your unified stereo cable
(see part illustration in appendix). Connect the green
and purple end of the unified stereo cable to the
green and purple inputs at the subwoofer (these are
labeled "Front" and "Rear" respectively on the back of
the subwoofer). On the opposite end of the unified
stereo cable, connect the green plug to the sound
card's front output (normally labeled "1", "front" or
green), and the black plug to the sound card's rear
output (normally labeled "2", "rear" or black). You will
not need your digital RCA cable for this setup.
or
i3
) My sound card has 2 STEREO LINE OUTS and
a DIGITAL (S/PDIF) OUT: For sound cards with 2
stereo outputs and an added digital output on the
same card, use the unified stereo cable supplied
(see part illustration in appendix) and connect the
purple end of the unified stereo cable to the
subwoofer's "Rear Analog Input". Connect the
opposite black end of the unified stereo cable to the
sound card's rear output (normally labeled "2", "rear"
or black). You will not need to use either of the green
ends with this setup. Next, using your digital RCA
cable (see part illustration in appendix), connect one
of the black ends to the subwoofer's "Digital Input".
The opposite end of this digital RCA cable should
plug into your sound card's digital S/PDIF output.
NOTE: It may be necessary to use the RCA-to-
phono adapter (see part illustration in appendix) if
your card's digital output is a phono jack instead of a
coaxial.
h
) Connect the system's control pod cable
(blue) to the "Control" jack (also blue) on the
back of the subwoofer.
STOP: For step
'i'
you will need
to carefully identify which type of
sound card setup you have:
i1
,
i2
,
i3
or
i4.
i1
) My sound card has 1 ANALOG OUT-
PUT: Using your unified stereo cable (see
part illustration in appendix), plug the green
end into the subwoofer's "Front Analog Input",
and the opposite green end into the sound
card's single audio output. You will not need
the digital RCA cable or the purple and black
ends of the unified cable for this setup.
SPECIAL FEATURE: When operating as a
3-piece (or front channel input only), the
system has the ability to create a Virtualized
Dolby Surround effect; use Surround Vol.
3. Input Panel Connections
3
(Sound card sample illustration)
Phono jacks RCA (coxial)
digital output
i3
Back of computer
i2
Back of computer
Back of subwoofer
Back of subwoofer
4
or
i4
) My sound card has 2 STEREO OUTPUTS with a
SEPARATE DVD DECODER CARD: Using the unified
stereo cable (see part illustration in appendix below),
connect the green and purple end of the unified stereo cable
to the green and purple jacks on the back of the subwoofer
(these are labeled "Front" and "Rear" respectively on the back
of the subwoofer). On the opposite end of the unified stereo
cable, connect the green plug to the sound card's front output
(normally labeled "1", "front" or green), and the black plug to
the sound card's rear output (normally labeled "2", "rear" or
black). Next, using the digital RCA cable (see part illustra-
tion in appendix below), connect one of the black ends to the
"Digital Input" on the back of the subwoofer. The opposite
end of the digital RCA cable should connect to the DVD
decoder card's digital S/PDIF out. NOTE: It may be neces-
sary to use the RCA-to-phono adapter (see part illustration
in appendix below).
j
) Plug in power cable/transformer into back of
subwoofer and any available AC outlet.
Back of subwoofer
j
i4
Back of computer
Back of subwoofer
3(cont.)
Appendix: Parts included
(1) Unified stereo
analog cable (1) Transformer
with power cord
(1) Amplified and
ported subwoofer
(1) RCA-to-phono
adapter
(1) 8"
Y
adapter cord
for rear speakers
(1) Digital RCA cable*
(4) Self-adhesive
subwoofer feet (4) SST™satellite
speakers
(1) Pack of self-
adhesive rubber
feet for satellites
Limited Warranty
For one year from the date of purchase, Boston Acoustics will repair for the original owner any defect in materials or
workmanship that occurs in normal use of the speaker system, without charge for parts and labor.
Your responsibilities are to use the system according to the instructions supplied, to provide safe and secure transporta-
tion to an authorized Boston Acoustics service representative and to present proof of purchase in the form of your sales
slip when requesting service.
Excluded from this warranty is damage that may result from abuse, misuse, accidents, shipping, or repairs or modifica-
tions by anyone other than an authorized Boston Acoustics service representative.
This warranty is void if the serial number has been removed or defaced.
This warranty gives you specific legal rights, and you may also have other rights that may vary from state to state.
If Service Seems Necessary
Please, contact the retailer from whom you purchased the system. If that is not possible, write to:
Boston Acoustics, Inc., 300 Jubilee Drive, Peabody, MA 01960, or call 1-(978)-538-5000.
We will promptly advise you of what action to take.If it is necessary to return your speaker to the factory, please ship it
prepaid. After it has been repaired, we will return it freight prepaid in the U.S.and Canada.
© Copyright 1999 Boston Acoustics, Inc. All rights reserved.
SST, Slimline SpeakerTechnology and Digital BA7500 are
trademarks and Boston, and Boston Acoustics are registered
trademarks of Boston Acoustics, Inc. All other trademarks and
registration marks are the property of their respective owners.
Specifications subject to change without notice.
042-001131-0
300 Jubilee Drive
Peabody, MA 01960, USA
(978)538-5000
www.bostonacoustics.com
Notice of FCC Compliance
This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:(1)This
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