SPECIFICATIONS
Enclosure
Box Tuning Frequency
Applicable Speaker Unit
Input Terminal
Material
Finish
Dimensions
Weight
Vented (bass-reflex) type
4 5 H z
HLS38UL-8 x 2
2P screw-terminal, barrier-strip (M5)
Particle board
Leatherette dark gray
580(W) x 1,000(H) x 480(D) mm
22.8(W) x 39.4(H) x 18.9(D) inches
39kg (86 Ibs.)
*Specifications are subject to change without notice.
APPEARANCE AND DIMENSIONAL DIAGRAM
580 (22.8)
480 (18.9)
Unit; mm (inch)
OPTIONAL ACCESSORIES
HY-700
Suspension Kit
HY-M94
LE-M94 CD Horn
Mounting
Bracket
HY-940
LE-940 CD Horn Mounting Bracket
ARCHITECT’S AND ENGINEER’S
SPECIFICATIONS
The low-frequency enclosure shall be a TOA SB-38W or approved
equivalent. The enclosure shall be a vented, bass-reflex low-frequency
unit intended for permanent speaker system installations. It shall serve
as a low-frequency enclosure for two HLS38UL-8 woofer units. Box
tuning frequency (fb) shall be 45Hz. When installation with a suspended
SB-38W is required, the optional HY-700 suspension kit shall be
mounted to the SB-38W before the woofers are installed. The LE-M94 or
LE-940 may be attached with the HY-M94 or HY-940 horn mounting
bracket. A large barrier-strip input panel shall ensure safe and solid
connections. Dimensions shall be 1000(H) x 580(W) x 480(D)mm
(39.4(H) x 22.8(W) x 18.9(D) in.). Weight shall be 39kg (86 lb.), for the
enclosure. The enclosure shall be of particle board and shall come with
a protective punched-metal grille and a leatherette finish.
INSTALLATION EXAMPLES
The SB-38W is an enclosure for reproducing low-
frequencies. A high-efficiency low-frequency speaker
system can be created by adding two HLS38UL-8
woofers. A high-level, wide range two-way speaker
system can be configured by adding TOA’s LE Series
constant directivity horns and HFD Series compression
drivers. When driving the speaker system with multi-
amplifier operation, the time alignment, phase program,
equalization and channel divider functions can be set to
their optimum performance conditions by using the TOA
SAORI integrated sound processor, When driving the
speaker system in passive operation, use the optional
HNW-500 dividing network.
Installing the Low-Frequency Loudspeakers
1. Detach the protective punched-metal grille.
2. Connect the cables to the speakers.
3. Mount each speaker unit in the enclosure and tighten the screws at
the 8 locations. Use the screws provided with the speaker.
4. Mount the protective punched-metal grille to the enclosure and tighten
the screws at the 13 locations.
Suspending the Enclosure
Before installing the speakers, mount the HY-700 suspension kit in the
enclosure. For details, refer to the HY-700’s instruction manual.
When suspending this speaker system, be sure to investigate the
structure of the installation location, and confirm that it is adequate for
the weight of the components in the system.
Mounting Horns
When the speaker system is assembled, the LE-M94/LE-940
constant directivity horn is attached to the SB-38W with the HY-M94/
HY-940 horn mounting bracket. For details, refer to the HY-M94/
HY-940’s instruction manual.
Installing the Dividing Network
When using the HNW-500 dividing network, remove the input panel at
the back of the enclosure and mount the HNW-500 dividing network in
its opening. For details, refer to the HNW-500’s instruction manual.
Free-Standing Enclosure
If necessary, attach the provided rubber feet to the four locations at the
bottom of the enclosure for free-standing installation.
