Instruction Manual
PROFESSIONAL SOUND SYSTEM
Low Frequency Enclosure
Model SB-38W
Stands for the position of the gravity
center when two speaker units(HLS38UL-
8) are installed inside.
APPEARANCE
Note:Be sure to install each speaker unit from
the inside of the enclosure baffle board.
1. Punched-metal grille
2. Enclosure
3. Nut for horn mounting bracket
(HY-940/HY-M94)
4. Hole for suspension kit(HY-700)
5. Rear board
6. Terminal panel
7. Input terminal
FEATURES
1. Low frequency, vented(bass-reflex) enclosure for permanent installation.
2. Creates a woofer system that reproduces low frequencies with high efficiencies when two
HLS38UL-8 woofers are mounted. The tuning frequency is 45 Hz.
3. Each speaker is mounted to the baffle board from the rear of the enclosure, facilitating
maintenance after installation.
4. Creates a wide-range, high-efficient standard speaker system(GS-3806W or GS-386W)
when used in conjunction with a LE-940 or LE-M94 CD horn, a HFD-260-8 compression
driver and two HLS38UL-8 woofers.
5. It is possible to suspend the SB-38W with the optional HY-700 suspension kit.
6. It is easy to mount the LE-940 or LE-M94 to the enclosure with the optional HY-940 or HY-
M94 horn mounting bracket when the standard speaker system is configured.
7. Large input screw terminal.
8. A protective punched-metal grille.
9. Finished with paint(dark gray).
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Specifications(Assembled Two HLS38UL-8 Low-Frequency Loudspeakers)
Input Terminal:2P screw terminal(M5)
Material:Particle board
Finish:Paint
Enclosure:Vented(bass-reflex) type
Tuning Frequency:45 Hz
Applicable Speaker Unit:HLS38UL-8X2
Nominal lmpedance:4 ohms
Dimensions:1000(H)X580(W)X480(D)mm
Weight
1
Power Handling :1,000 W continuous pink noise
Sensitivity2:101 dB(1W/1m)
Including speaker unit:60kg
Only enclosure:34kg
Accessories
Frequency Range:40 Hz~3,000 Hz
Highest Recommended Crossover Frequency:800 Hz
Rubber spacer:4
Instruction manual:1
Warrantycard:1
Rear board mounting screw:18
Note
1. AES Standard(60to 600 Hz)
2. Sensitivity is based on a band-limited(100 to 800 Hz) pink noise signal.
3. Specifications are subject to change without notice.
Installation Examples
The SB-38W is a fixed enclosure for reproducing low frequencies. A high-efficient low
frequency speaker system consists of the SB-38W and two HLS38UL-8 woofers, and a high-
linearity, wide-range two-way speaker system is configured in addition to TOA's LE-series
constant directivity horn and HFD-series compression driver. When driving the speaker
system with multi-amplifier operation, the time alignment and speaker system phase can be
set to their optimum performance conditions by using our integrated sound processor "SAORI"
as a divider. When driving the standard speaker system(GS-3806W or GS-386W) with passive
operation, use the optional HNW-500 dividing network.
Mounting the Low-Frequency Loudspeaker
1. Remove the rear board.
2. Screw each speaker unit to the baffle board from the inside of the baffle at 8 places.(The
screws are attached to the speaker unit.)
3. Connect the cables to the, speaker unit. Connect the red cable to the red terminal and
connect the black cable to the black terminal.
4. Replace the rear board by screwing at 20 places.
Note: Be sure to install each speaker unit from the inside of the enclosure baffle board.
Suspending the Enclosure
Before mounting the speaker unit, mount the HY-700 suspension kit to the enclosure. For
details, refer to the HY-700's instruction manual.
When suspending this speaker, make sure to suspend it after investigating structure of
installation locations, and confirming that the suspending wires or belts are heavy-duty to this
speaker.
Mounting the Horn
When the standard speaker system(GS-3806W or GS-386W) is configured, the constant
directivity horn LE-940 or LE-M94 is mounted to the SB-38W with the horn mounting bracket
HY-940 or HY-M94 respectively. For details, refer to their instruction manuals.
Mounting the Dividing Network
When using the HNW-500 dividing network, detach the terminal panel at the back of enclosure
and mount the dividing network. For details, refer to the HNW-500's instruction manual.
Installing the Enclosure
If necessary, attach the provided rubber spacer to the four locations at the bottom of the
enclosure.
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Standard Speaker System GS-3806W
Appearance
Components Configuration
SB-38W:Low-frequency enclosure
HLS38UL-8×2:Low-frequency speaker unit
LE-940:Constant directivity horn
HFD-260-8:Compression driver
HY-940:Horn mounting bracket
Note
The HNW-500 dividing network is required when driving the
speaker system with passive operation.
SAORI Setting
1. When driving the speaker system with multi-amplifier
operation using SAORI, set the channel divider module for a
long delay type(IS-110DL4 and IS-110DL2) as shown in the
following diagram.(F1 as low-frequency and F2 as high-
frequency)
2. Since the level setting value is set to standard values which
are used the same type amplifier's output power for each
band, it may have to be adjusted according to the location
and condition of the area in which it is used.
Total Weight:88kg
Frequency Response(Multi-Amplifier Drive Using the SAORI)
Note
CFQ:Crossover frequency of each filter
SLP:Slope characteristics of each filter
24S: 24dB/oct Bessel
18W: 18dB/oct Butterworth
LEV:Output level of each band
POL:Polarity of each band
DLY:Delay value of each band
HEQ:Horn equalizer
Measured at 1 watt(at 200Hz) and 2 meters.
SPL shows the converted level into 1W/1m.
Suspending the GS-3806W
When suspending the GS-3806W, make sure to suspend the
constant directivity horn to upper direction using the optional
HY-700 suspension kit as shown in the figure. Never suspend it
to lower or horizontal direction.
For mounting the HY-700 to the enclosure, refer to its
instruction manual.
Caution
When suspending this speaker, make sure to suspend it after
investigating structure of Installation locations, and confirming
that the suspending wires or belts are heavy-duty to this
speaker.
TOA takes no responsibility for any accidents or injuries caused
by faulty mounting methods or poorly selected mounting
locations.
Make sure to suspend the constant directivity horn to
upper direction.
Never suspend it to lower or horizontal direction.
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Standard Speaker System GS-386W
Appearance
Components Configuration
SB-38W:Low-frequency enclosure
HLS38UL-8×2:Low-frequency speaker unit
LE-M94:Constant directivity horn
HFD-260-8:Compression driver
HY-M94:Horn mounting bracket
Note
The HNW-500 dividing network is required when driving the
speaker system with passive operation.
SAORI Setting
1. When driving the speaker system with multi-amplifier
operation using SAORI, set the channel divider module for a
long delay type(IS-110DL4 and IS-110DL2) as shown in the
following diagram. (F1 as low-frequency and F2 as high-
frequency)
2. Since the level setting value is set to standard values which
are used the same type amplifier's output power for each
band, it may have to be adjusted according to the location
and condition of the area in which it is used.
Total Weight:77kg
Frequency Response(Multi-Amplifier Drive Using the SAORI)
Note
CFQ:Crossover frequency of each filter
SLP :Slope characteristics of each filter
24S: 24dB/oct Bessel
12W: 12dB/oct Butterworth
LEV :Output level of each band
POL:Polarity of each band
DLY:Delay value of each band
HEQ:Horn equalizer
Measured at 1 watt(at 200Hz) and 2 meters.
SPL shows the converted level into 1W/1m.
Suspending the GS-386W
When suspending the GS-386W, make sure to suspend the
constant directivity horn to upper direction using the optional
HY-700 suspension kit as shown in the figure. Never suspend it
to lower of horizontal direction.
For mounting the HY-700 to the enclosure, refer to its
instruction manual.
Caution
When suspending this speaker, make sure to suspend it after
investigating structure of Installation locations, and confirming
that the suspending wires or belts are heavy-duty to this
speaker.
TOA takes no responsibility for any accidents or injuries caused
by faulty mounting methods or poorly selected mounting
locations.
Make sure to suspend the constant directivity horn to
upper direction.
Never suspend it to lower or horizontal direction.
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Printed in Japan
133-01-326-9A
TOA Corporation
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INSTRUCTION MANUAL
SAFETY PRECAUTIONS
Symbols
Follow this instruction manual to obtain the optimum
results before use.
We also recommend you keep this instruction manual
handy for future reference.
Symbol of
caution actions
Symbol of
prohibited actions
Note that this manual may include safety precautions not
applied to your products.
Caution
Prohibition
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
WARNING
Avoid installing or mounting the unit in unstable locations, such as on a rickety
table or a slanted surface. Doing so may result in the unit falling down and
causing personal injury and/or property damage.
Prohibition
Caution
Install the unit only in a location that can structurally support the weight of the
unit and the mounting bracket. Doing otherwise may result in the unit falling
down and causing personal injury and/or property damage.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION
Install the unit only in stable locations, and make appropriate arrangements to
prevent it from falling down or rolling cross the floor. If it falls down or moves,
this may cause personal injury and/or property damage.
Caution
When unpacking or moving a heavy unit, be sure to handle the unit with two or
more persons. Falling or dropping the unit may cause personal injury and/or
property damage.
Caution
Do not place heavy objects on the unit as this may cause it to fall or break which
may result in personal injury and/or property damage. In addition, the object
itself may fall off and cause injury and/or damage.
Prohibition
Prohibition
Prohibition
Do not stand or sit on, nor hang down from the unit as this may cause it to fall
down or drop, resulting in personal injury and/or property damage.
Do not operate the unit for an extended period of time with the sound distorting.
This is an indication of a malfunction, which in turn can cause heat to generate
and result in a fire.
Avoid placing the unit in a doorway or other high traffic area as people may trip
on the equipment and cords, or be injured by falling objects.
Prohibition
133-21-296-50
TOA Corporation
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Model SB-38W
TOA
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HLS38UL-8 2
400Hz
315Hz
250Hz
200Hz
1000Hz
630Hz
800Hz
500Hz
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HLS38UL-8 2
- 3 -
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GS-3806W
- 4 -
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GS-386W
- 5 -
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TEL. 0120-108-117
TEL. 0797-72-7567
FAX. 0797-72-1090
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* Please see the reverse side for English safety instructions.
TOA
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