TOA Electronics HB-1 User Manual
OPERATING INSTRUCTIONS
SUB-WOOFER SYSTEM HB-1
Please follow the instructions in this manual to obtain optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
TABLE OF CONTENTS
1. SAFETY PRECAUTIONS ............................................................................... 2
2. GENERAL DESCRIPTION ............................................................................ 3
3. FEATURES ......................................................................................................... 3
4. HANDLING PRECAUTIONS ......................................................................... 3
5. NOMENCLATURE AND DIMENSIONS ..................................................... 3
6. INSTALLATION
6.1. Contents ........................................................................................................... 4
6.2. Flush Wall or Ceiling Mounting ....................................................................... 4
6.3. Suspending the Unit in the Ceiling .................................................................. 8
7. MATCHING TRANSFORMER INSTALLATION ..................................... 9
8. CROSSOVER CONNECTIONS
WITH A FULL-RANGE SPEAKER
8.1. Recommended Filters for the HB-1 ................................................................ 10
8.2. Level Balance and Polarity ............................................................................. 10
9. CAUTIONS CONCERNING
HIGH-IMPEDANCE APPLICATIONS ........................................................ 11
10. SPECIFICATIONS ........................................................................................... 12
Accessories ............................................................................................................ 12
2
When Installing the Unit
• 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.
• Use nuts and bolts that are appropriate for the ceiling's or wall's structure and composition. Failure to do so
may cause the speaker to fall, resulting in material damage and possible personal injury.
• Tighten each nut and bolt securely. Ensure that the bracket has no loose joints after installation to prevent
accidents that could result in personal injury.
When the Unit is in Use
• Should the following irregularity be found during use, immediately switch off the power, disconnect the power
supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the
unit in this condition as this may cause fire or electric shock.
· If you detect smoke or a strange smell coming from the unit.
· If water or any metallic object gets into the unit
· If it is malfunctioning (no tone sounds.)
When the Unit is in Use
• 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.
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
WARNING
1. SAFETY PRECAUTIONS
• Be sure to read the instructions in this section carefully before use.
• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
• We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.
CAUTION
WARNING
CAUTION
3
2. GENERAL DESCRIPTION
The TOA HB-1 is a high-power, wall/ceiling-mounted sub-woofer system employing a 20 cm speaker unit.
Although small in size, the HB-1 provides clear super-low frequency sound reproduction thanks to its Acoustic
Super Woofer enclosure construction.
3. FEATURES
• A large, 110 mm-diameter ferrite magnet, a long, 35 mm-diameter voice coil, an aluminum bobbin, and a
rubber roll edge combine to permit large voice coil movement at high power input.
• The Acoustic Super Woofer system enclosure creates an acoustic band-pass filter that reproduces superlow frequencies down to 45 Hz and realizes slow-slope phase characteristics.
• The enclosure is 103 mm in depth from the mounting surface, and suitable for mounting in a wall with twoby-four construction.
• Rotating lock tabs permit the speaker to be temporarily fixed during installation. Also, the speaker has
provisions for wire or bolt suspension.
• The speaker can be converted to high-impedance applications with the addition of the optional MT-S0601
matching transformer.
4. HANDLING PRECAUTIONS
No anti-magnetic provisions have been made for the HB-1 speaker. Therefore, take care to keep the unit
sufficiently away from televisions, monitors or computer-related equipment.
5. NOMENCLATURE AND DIMENSIONS
430
544
32 103
352
520
[Front]
[Bottom]
[Side]
[Rear]
Front grille
Speaker
Detachable input connector
Hook clip
• Mounting bracket
(standard accessory)
(Unit: mm)
4
6. INSTALLATION
6.1. Contents
Check to be sure that the following components are available in a complete set before installation:
Speaker ..... 1
Stud holder ..... 4 Masking tape ..... 4
"Short"... 2
"Long"... 2
Cutout template ..... 1
Mounting screws/washers
Tapping screw (3x8) .... 4
Screw (M5x10) .... 4
Screw (M4x30) .... 6
Plain washer .... 4
Spring washer .... 4
Mounting bracket ..... 1 Front grille ..... 1 Anchor piece ..... 2
6.2. Flush Wall or Ceiling Mounting
6.2.1. Flush wall mounting
6.2.2. Installation order
Step 1. Using the supplied cutout template, make a 360x480 mm mounting hole in the wall or ceiling panel.
Note
• There must be at least 103 mm of depth behind the wall or ceiling panel.
• The unit is mountable on the panel with thickness of 12 – 33 mm.
[Front ]
[Vertical cross-sectional ]
[Horizontal cross-sectional ]
HB-1
HB-1
Wall
Fixing screw
Mounting bracket
Frame lumber
(two-by-four construction)
Front grille
480 mm
360 mm
Mounting
hole
Mounting surface
Panel
12 – 33 mm
103 mm or more
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