TRU Audio B23 series User manual

Description:
The idea behind the new B23 speaker line was
to build a truly high performance
loudspeaker that could be retrofit in a wall.
The B23 not only has a stunning look, but
also has stellar performance.
In order to produce a Tru high fidelity full
range speaker, a three way design was
selected. A three way design allows the use
of the proper size component for each band of
frequencies for playback.
At the high end of the frequency spectrum, a
Titanium diaphragm tweeter was selected for
a Tru-to-life dispersion pattern that most
closely resembles the way natural sound
moves. This tweeter material allows the
tweeters to be played at the proper level,
without the listener experiencing ear
fatigue. This is especially important for
the high volumes at which home theater
playback often occurs. Also, the tweeter's
neodymium motor was selected because it
allows the tweeter to be compact enough to be
in a swivel mount. This allows the installer
to place the speaker where it would go in a
real world application, but also aim the
tweeters so that the listener experiences
them on axis where their response is best.
A 6.5" carbon fiber midrange was selected
because of its balance of the many factors
that must be considered when choosing a
midrange driver. This single piece cone has
good dispersion in the usable band. Also,
the cone size was important in considering
cone breakup, which is a form of distortion
that occurs at lower frequencies in larger
cones. The woven carbon fiber cone material
was chosen because it is very stiff, limiting
cone breakup in the usable band. It is also
very light, which helps reduce the weight of
the moving assembly. By balancing these
qualities, a midrange speaker was produced
with good dispersion in the usable band with
very little breakup, and is sensitive enough
to have incredible dynamic range and
accuracy.
Because this is a three-way in-wall speaker,
the limited depth would not allow the use of
a conventional woofer driver. The solution
was to use three 6.5” woofers instead of a
single 10" woofer. This would give the
necessary output to balance with the rest of
the system, while playing low enough to be
truly full range, all while maintaining a
depth that still fits in a standard 2 x 4
wall.
This high performance full-range loudspeaker
needs the retrofit able back box in order to
control the amount of air the speaker
operates in, sold with the speaker. The
midrange speaker has its own enclosure
integrated with in the speaker to optimize
its performance and control its resonance.
The B23 cabinet is designed to allow the
woofers the exact amount of air space they
need to balance their output perfectly.
It is very difficult to get true full-range,
high quality sound out of a speaker that fits
in a standard wall. This is a problem the
industry has been struggling with for years.
The B23 series has accomplished this: Tru
high fidelity in the wall.
User Manual - B23 Series - In-Wall Theater Speaker

Unpacking and Inspection:
These B23 loudspeakers are packaged
extremely well to ensure no damage occurs
during shipping. Carefully open the box and
remove the speaker. Inspect it
immediately for any kind of damage.
The speaker should have left our
warehouse in perfect condition, so
any damage must be reported to your
dealer or to TruAudio right away.
Please contact us immediately at
1.888.858.1555
All service to this product MUST be
done by a TruAudio authorized repair center.
If you try to do any kind of repair, this
will void the warranty!
We recommend that you retain the packaging in
case a need arises for you to
transport your loudspeakers.
Home Theater Use:
Today’s Home Theater systems
require six or more speakers for
true, life like Home Cinema
listening. These speakers are: the
front right and left, the center
channel, the right and left
surround (rear), and a subwoofer. Some
systems also require additional surround
speakers or rear centers to enhance the
theater sound. The placement for these
speakers is critical to having your home
theater experience the best it can be.
Before Installation:
In order for these speakers to
perform to their potential, we
recommend that the amplifier or
receiver must have the proper
amount of power output. For the
B23-465 we suggest using 5-350
watts and for the B23-265 & 265SURwe
suggest using 5 to 220 watts.
These speakers require two conductor speaker
cable when connecting to the
amplifier/receiver. For most applications,
we suggest using a good quality, high strand
14 gauge. For longer runs over 75 feet, we
suggest using a 12 gauge speaker cable.
If the speaker cable will be run inside the
wall or ceiling, make sure the
speaker cable is UL certified and is
in accordance with all your local
building regulations.
Determining Speaker Placement:
When properly installed and with
appropriate equipment, the TruAudio
B23 series will provide an
unforgettable experience. B23 speakers are
capable of delivering precise imaging and
unmatched sound quality. To maximize the
performance of your system, please take time
to read instructions for proper setup and
installation.
Pre-installation is critical to
achieving the maximum performance
from your TruAudio B23 speakers.
Factors such as the location and
height of seating and location of
the video monitor will dictate the
proper placement of speakers.
Remember that the wall is part of the sound
reproduction system. The listening room
should be symmetrical both in overall shape,
and with respect to furnishing. The best
listening rooms exhibit low intrusion of
ambient noise. The Bad Boys should not be
mounted with less than two feet of
unobstructed wall on either side.
Optimum horizontal placement of
left and right speakers is six to
ten feet apart and at least 18” from
the side walls. See figure_#1
Preparation before Speaker
Installation
Use the back side of the backbox or the
cutout template and mark on the wall where
you would like to install your speaker, cut
the drywall out. See figure_#2
Fig #2
Fig #3
Slightly behind
ear center
An alternate
position may
be in the rear
walls spaced
identical with
the front, left,
and right
speakers.
Fig #1

Back Box installation:
The B23 speakers MUST USE the back boxes
provided by with the speakers. The back boxes
provide better definition to bass, higher
power handling, and less intrusion
of sound into other rooms.
• All B23’s back boxes will fit into
a 2” x 4” stud bay.
• Avoid placing a speaker in a stud
bay shared with electrical wires.
• Be sure to attach speaker cable to
back box. Note: Be careful not to
over cut sheetrock around the
opening. There is about ½” of play.
Connect your speaker cable to the terminals
on the outside of the backbox. See figure_#3
How you are ready to install the back bock
into the cutout in the drywall using
the dogears. Place the backbox into
the hole and tighten all the dogears
securely, but don’t over tighten.
See Figure_#4
Note: If your cutout is right up
against a wood stud you can put a
wood screw through the backbox and
into the stud. See figure_#5
Speaker Installation
These speakers are mono so you will need two
speakers for stereo sound, one for the right
channel and one for the left. There should
be a two conductor speaker cable
pre-wire to each of the speaker
locations.
Remove the speaker from the box and
inspect for any damage.
Very important, DO NOT remove the
plastic covering over the aluminum
face of the speaker until the
speaker is full installed.
If there is any damage, contact TruAudio
immediately, 888-858-1555.
Connect the twisted speaker cable that is
inside the backbox to the speaker terminals
on the back of the speaker. Push down each
post and insert the speaker cable. The posts
will be located on the back of the speaker on
the crossover. Make sure that only
BARE wire is touching the speaker
post once it slides back into place.
All TruAudio products feature gold
push binding posts which are quick
and simple to use and also are great
for conducting speaker signal.
Caution: Make sure to observe
polarity, R + (positive) from the
amp or volume control to speaker R
+ and R – (negative) to
R –. Make sure to do the same for the left
channel.
When connecting the other end of the speaker
cable to the amplifier or receiver make sure
to observe the same polarity as you
did at the speaker connection.
1. Make sure the midrange driver is
on top for the left and right
speakers. This driver will have its
own enclosure around it on the
speaker.
2. Carefully lift the speaker into
the backbox.
3. Use the machine screws provided by
TruAudio to securely attach the speaker to
the back box. See figure_#6
4. Then simply line up the magnets on the
grill to the screw heads on the Bad
Boy and the grill will attach
itself.
Fig #4
Fig #5
Fig #6

SoundVision Technologies dba TRUAUDIO
SPEAKER PRODUCT WARRANTY
It is the policy of TRUAUDIO to continuously incorporate improvements into our products. All specifications are
subject tochange without notice. If you have any questions regarding this or any other TRUAUDIO products,
please call 1-888-858-1555, Monday – Friday, 7:00 am – 6:00 pm MST.
TRUAUDIO Speaker Systems, St. George, Utah, 84790
Office: 435.986.1574 Fax: [phone]
NOMENCLATURE
Model:
Type:
Woofer:
Midrange:
Tweeter:
Power:
Impedance:
Freq Resp:
Sensitivity:
Grill Mat:
Finish Dims:
Cutout Dims:
B23-465LCR
In Wall 3-Way
(3) 6.5” Coated
6.5" Coated
1” Titanium
350 Watts
4 Ohms
39 - 20kHz
92 dB
Cloth MDF
40 5/8” (1032MM) H,
39 5/8” (1006MM) H,
Single Piece
Carbon Fiber
Single Piece
Carbon Fiber
Diaphragm Swivel
106MM D
13 7/16” (342MM) W,
4 3/16” (106MM) D
12 7/16 (316MM) W
B23-265SUR
Dipole/Bipole SUR
Dual 6.5” Coated
NA
Dual 1” Titanium
220 Watts
4 Ohms
45 - 20kHz
90 dB
Cloth MDF
25 1/4” (642MM) H,
24 1/4” (616MM) H,
Single Piece
Carbon Fiber
Diaphragm
12 7/16” (316MM) W
13 7/16” (342MM) W,
4 3/16 (106MM) D
B23-265LCR
In Wall 2-Way
Dual 6.5” Coated
NA
1” Titanium
220 Watts
4 Ohms
45 - 20kHz
91 dB
Cloth MDF
25 1/4” (642MM) H,
24 1/4” (616MM) H,
Single Piece
Carbon Fiber
Diaphragm Swivel
12 7/16” (316MM) W
13 7/16” (342MM) W,
4 3/16 (106MM) D
All in-ceiling, in-wall, in-room speakers and volume controls have a limited lifetime warranty. This warranty
includes lifetime parts and repair labor on all components. The warranty extends only to the original purchaser of
the product and not to any subsequent owner. TRUAUDIO’s obligation under these warranties is limited to
repairing or replacing any component found defective in material or workmanship under normal conditions of use
with an equal and/or current product. These warranties shall not apply to products which have been abused,
modified, or disassembled. Products to be repaired or returned under this warranty must be returned to the
factory through an authorized TruAudio dealer with all transportation and insurance charges prepaid.