Vizio SB-38W User Manual

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PROFESSIONAL SOUND SYSTEM

Instruction Manual

Low Frequency Enclosure

APPEARANCE

Model SB-38W

Stands for the position of the gravity center when two speaker units(HLS38UL-

8) are installed inside.

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 HYM94 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).

Characteristic Diagrams(Assembled Two HLS38UL-8 Low-Frequency Loudspeakers)

Frequency Response • Impedance Curve

Measured in an anechoic environment at 1 watt and 1 meter.

Coverage Angle vs Frequency(-6dB)

Harmonic Distortion

Measured at 100 watt s (-10dB power), 1 meter.

Directivity Factor(Q) vs Frequency

Polar Response (1/3 Octave Pink Noise)

200Hz

250H2

Horizontal

315Hz

Vertical

400Hz

500Hz

630Hz

- 2 -

800Hz

1000Hz

Specifications(Assembled Two HLS38UL-8 Low-Frequency Loudspeakers)

Enclosure:

Tuning Frequency:45 Hz

Applicable Speaker Unit:HLS38UL-8X2

Nominal lmpedance:4 ohms Power Handling1:1,000 W continuous pink noise

Sensitivity2:101 dB(1W/1m)

Frequency Range:40 Hz~3,000 Hz Highest Recommended C r ossover Frequency:

Note

1. AES Standard(60 to 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.

Vented(bass-reflex) type

800 Hz

Input Terminal:2P screw terminal(M5)

Material:Particle board

Finish:Paint Dimensions:1000(H)X580(W)X480(D)mm

Weight

Including speaker unit:60kg

Only enclosure:34kg

Accessories

Rubber spacer:4

Instruction manual: 1 Warranty card: 1

Rear board mounting screw: 18

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 t wo 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 f rom 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 w ires 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 div i d ing network, detach the terminal panel at the back of enclosure

and mount the di vi di ng 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.

- 3 -

Standard Speaker System GS-3806W

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 ne twork is required whe n 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 highfrequency)

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.

Appearance

Tot al 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 o f ea c h ba nd

DLY:Delay value of each band

HEQ:Horn equalizer

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.

Measured at 1 watt(at 200Hz) and 2 meters. SPL shows the converted level into 1W/1m.

Make sure to suspend the constant directivity horn to

upper direction.

Never suspend it to lower or horizontal direction.

- 4 -

Standard Speaker System GS-386W

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

followi ng diagram. (F1 as low-frequency and F2 as highfrequency)

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 i n which it is used.

Appearance

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 o f each band DLY:Delay value of each band

HEQ:Horn equalizer

Sus pe nd in g the GS-386W

When suspending the GS-386W, make sure to suspend the constant dire ctivity 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.

Measured at 1 watt(at 200Hz) and 2 meters. SPL shows the converted level into 1W/1m.

Make sure to suspend the constant directivity horn to

upper direction.

Never suspend it to lower or horizontal direction.

- 5 -

TOA Corporation

Printed in Japan

133-01-326-9A

SAFETY PRECAUTIONS

INSTRUCTION MANUAL

Follow this instruction manual to obtain the optimum results before use. We also recommend you keep this instruction manual

handy for future reference. Note that this manual may include safety precautions not applied to your products.

Indicates a potentially hazardous situation which, if mishandled, could

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.

Install t he 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.

CAUTION

result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could result in moderate o r minor personal injury, and/or property damage.

Symbols

Symbol of

caution actions

Caution

Symbol of

prohibited actions

Prohibition

Caution

Inst all t he 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.

When unpacking or moving a heavy unit, be sure to handle the unit with tw o or

more persons. Falling or dropping the unit may cause personal injury and/or

property damage.

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 c aus e injury and/or damage.

Do not stan d o r sit on, nor hang down from the unit as this may cause it to fall down or drop, resulting in persona l 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.

Caution

Prohibition

TOA Corporation

133-21-296-50