Toa SW-46W-UL2, SW-46S-UL2 Instruction Manual

PROFESSIONAL SOUND SYSTEM

Super Woofer System

Model SW-46S-UL2

Instruction Manual

SW-46W-UL2

GENERAL DESCRIPTION

The Toa SW series Super W oofers are super-low frequency
loudspeaker systems designed f or professional applica­tions in high-l e v e l sound reinforcement environments where
hig h efficiency, super-low frequency range, and faithful re­production are required, such as discos, concert halls,
theaters, movie houses, auditoriums, and in live sound rein­forcement applications.
The SW-46S bass-reflex enclosure contains one (1 ) ultra­linear, high-power 18" woofer, while the SW-46W contains

two 18" woofers.
The woofer, Model HLS46UL2-8, employs a 4" (100mm) di­ameter voice coil of edge-wound copper ribbon on an alu­minum coil form, which is driven by powerful double ferrite
magnets. The magnets are supported by a rugged diecast
aluminum frame and give a flux density of 13,600 gau ss.

Bass-reflex ports are tuned to the optimum condition by
computer, allowing the woofer to provide maximum per­formance.
The system is rated at 480 watts RMS (240 watts RMS for
46S) of continuous pink noise, and at 1,440 wa tts (720
watts for 46S) of continuous program material.
Two pairs of screwtype input terminal (one-pair of terminals
in the case of the 46S) is provided on rear of enclosure.
Removal of the jumper pieces permit the 46W to drive the
two woofers independently by their respective amplifiers.
By removing blank panels on the rear-mounted input panel,

two female XLR connectors (46W) or one each of male and

female XLR connector (46S) can be mounted. The enclo­sure is highly reinforce d to eliminate unwanted vibrations.
Large carrying handles are provided on both sides of an
enclosure, and a detachable punched metal grille in front.
The enclosure is finished in grey painting.

FEATURES

1. Ultra linear, high power 18" woofer provides high effi­ciency in the super-low f requency range.

2. High power handling capacity of 480 watts (240 watts
for 46S) RMS continuous pink noise and 1,440 watts
(720 watts for 46S) continuous program material.

3. Bass-reflex enclosure tuned to the optimum conditions
by computer assures the maximum woofer performance.

4. Screwtype input terminal (2 pairs for 46W and 1 pair for
46S) are provided. By removing jumper pieces two
woofers can be driven independently by means of re­spective amplifiers (46W).

5. Two mountable female XLR connectors (46W) or one
each of male and female XLR connector (46S).

6. Rugged, grey-painted enclosure with carrying handles
and a detachable punched grille.

Specifications

MODEL NUMBER

Enclosure

Speaker

Power Capacity

Continuous Pink Noise

Continuous Program

Impedance

Sensitivity

Frequency Response
Recom m en de d Crossover

Frequency

Input Terminals
Finish (Enclosure)

Dimension

Weight

SW-46W-UL2

SW-46W-UL2

Vented (bass reflex) type

Two 18" woofe rs

480 watts RMS of band limited pink noise

(40~1

kHz)

4 ohms (parallel) or Two 8 ohms
(independent)

700(H)x1200(W)x610(D) mm

27.6(H)x47.2(W)x24(D) inches

1,440 watts

99dB (1W/1m)

30~500Hz
60~100Hz

Screwtype

Painted grey

95kg (210 IDS)

SW-46S-UL2

SW-46S-UL2

One 18" woofer

240 watts RMS of band limited pink noise

(40~1

kHz)

720 watts

8 ohms

96dB (1W/1m)

700(H)x600(W)x610(D) mm

27.6(H)x23.6(W)x24(D) inches

60kg (132 Ibs)

Noise)Characteristic Diagrams (1W/1m:1/3 Octave P i nk

Input Panel

Right-hand side woofer
(Viewed from the front)

SW-46W-UL2

(Using an external crossover network)

Blank panel (for mounting female XLR connector)

Left-hand side woofer

Jumper piece
Input panel

Fixing screw

Screwtype terminals

[Fig

1]

Blank panel (for mounting male XLR connector)

SW-46S-UL2

The two woofers of the SW-46W-UL2 are connected in pa­rallel when jumper pieces are used (impedance is 4
ohms). Removal of the jumper pieces disconnect the two
woofers from each other, allowing each of them to be
driven independently by means of their respective ampli-

fiers (impedance of each is 8 ohms). By removing the

blank panels two female XLR connectors (46W) or one
each of male and female XLR connector (46S) can be

mounted. To do wiring work, remove the rear-mounted in­put panel.