TOA SPEAKER SYSTEM
SUPER WOOFER SYSTEM
SW-38W-UL/SW-38S-UL
DESCRIPTION
The TOA SW Series Super Woofer System SW-38W-UL
and SW-38SUL are ultra-low frequency bass-reflex loud-
speakers designed for professional applications in high-level
sound reinforcement situations where high efficiency, an
extremely low frequency range and true-to-the-original
reproduction are required. The SW Series Super Woofer
System is ideal for dance clubs, concert halls, theaters,
movie houses, auditoriums, and in live sound enhancement.
The SW-38S bass-reflex enclosure contains one ultra-linear,
high-power
15”
woofer, while the SW-38W comes with two
woofers.
The woofer used in the SW Series is the HLS38UL-8, with
a 2.8” (72mm) diameter voice coil of edge-wound copper
ribbon on an aluminum coil form. The coil is driven by
powerful double ferrite 14,200 gauss flux density magnets,
supported by a rugged diecast aluminum frame. The extra-
long voice coil on the HLS38 produces a greater coil
surface area within the magnetic flux field, resulting in
precise control over cone movement, excellent heat dissi-
pation, and less dynamic compression during extended
high-power applications.
The bass-reflex cabinet design is computer optimized to
produce a flat frequency response, wide bandwidth, and a
more pleasing low-frequency sound than is possible with
comparable horn-loaded designs.
The SW Series Super Woofer System is rated at 300 watts
RMS (150 watts RMS on the 38S) of continuous pink noise,
and at 900 watts (450 watts on the 38S) of continuous
program material.
Two pairs of screw type input terminals (one pair on the 38S)
are provided on the rear of the SW Series enclosure.
Removal of the jumper pieces permits the two woofers on
the 38W to be driven independently, each by its respective
amplifier. By removing blank panels on the rear-mounted
input panel, two female XLR connectors (38W) or one
male and one female XLR connector can be attached.
The SW Series enclosure is finished in gray paint and is
highly reinforced to eliminate unwanted vibrations. Large
carrying handles are provided on both sides of the
enclosure, and the punched-metal front grille is detachable.
FEATURES
1. Ultra-linear, high-power 15” woofer provides enhanced
response efficiency in the extra-low frequency range.
2. High power handling capacity of 300 watts RMS (150
watts for the 38S) continuous pink noise, and 900 watts
(450 watts for the 38S) of continuous program material.
3. CAD (Computer-Assisted Design) employed for bass-
reflex enclosure to assure precise timing and maximum
performance.
4. Screw type input terminals (2 pairs on the 38W and
1 pair on the 38S) are provided. By removing their
jumper pieces, the two 38W woofers can be driven
independently by their respective amplifiers.
5. Two female XLR connectors may be attached to the
38W, and one male-female connector on the 38S.
6. Rugged gray-painted enclosure with carrying handles
and a detachable punched-metal grille.
