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TABLE OF CONTENTS 1. SAFETY PRECAUTIONS 2 2. GENERAL DESCRIPTION 3 3. FEATURES 3 4. HANDLING PRECAUTIONS 3 5. NOMENCLATURE 4 6. INSTALLATION 6.1. Direct Wall/Ceiling Mounting Without Using an Electrical Box 5 6.2. Mounting the Speaker to an Electrical Box Using The Adapter Frame 8 6.3. Mounting the Speaker Directly to an Electrical Box 9 6.4. Removing the Trim Piece 9 7. REPAINTING THE GRILLE AND TRIM PIECE 10 8. PROTECTION CIRCUITRY INFORMATION 11 9. EQUALIZATION 12 10. SPECIFICATIONS 12 Accessories 12 TOA Corporation 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 so you are thoroughly aware of the potential safety hazards as well as understand the safety symbols and messages. Indicates a potentially hazardous situation which, if mishandled, WARNING 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 CAUTION damage. WARNING CAUTION When Installing the Unit When the Unit is in Use • Install the unit only in a location that can • Do not operate the speaker for an extended period structurally support the weight of the unit and the of time with the sound distorting. This is an mounting bracket. Doing otherwise may result in indication of a malfunction, which in turn can cause the speaker falling down and causing personal heat to generate and result in a fire. injury and/or property damage. When the Unit is in Use • Should the following irregularity be found during use, immediately stop operating the unit 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.) 2. GENERAL DESCRIPTION TOA's H-1 is a cylinder-shaped, small flush-mount 2-way speaker featuring high sound quality. 3. FEATURES • The H-1 Speaker System features, flush-mount speaker design with a rotatable cylinder-type enclosure. The speaker's smooth curved surface allows it to blend in with the interiors of most modern buildings. • The speaker's small ( 8 x 5 cm) woofer features a magnetic circuit (employing a neodymium magnet) that ensures powerful sound reproduction. • The one-inch balanced dome tweeter features ferro-fluid to ensure superb transient response characteristics for clear, high frequency sound output and high power-handling capabilities. • The speaker's built-in crossover network circuitry features sharp cut-off characteristics that realize uniform energy radiation while suppressing unwanted input signals to the woofer or tweeter. • The H-1 Speaker System is designed with an emphasis on installation ease and safety, as well as easier conduit wiring when an electrical box is installed. • The cylinder-shaped speaker's mounting angle can be easily adjusted for up to ± 45 degrees rotation. • A built-in matching transformer permits the speaker to be used for both high-and low-impedance applications. For low-impedance applications, either the 4 or 16 terminal can be selected. Impedance can be easily changed from outside the unit. • Detachable screw terminals facilitate connection. Dual positive and negative terminals also facilitate bridge connections. • Both the speaker enclosure and Trim Piece are made of fire-resistant ABS (UL Standard 94: V-0 Grade). • All external parts have been specially selected for ease of refinishing and repainting. 4. HANDLING PRECAUTIONS The speaker is not magnetically shielded. Install it as far away as possible from television sets or computer's CRTs to avoid degradation in picture quality. 5. NOMENCLATURE [Side Panel] [Front Panel] [Side Panel] H-1 speaker Grille Trim Piece [Side Panel] For mounting to the Adapter Panel [Rear Panel] Mounting bracket For mounting to an electrical box Accessory (Adapter Panel) 6. INSTALLATION 6.1. Direct Wall/Ceiling Mounting Without Using an Electrical Box Step 1. Adapter Panel mounting 1-1. Using the supplied hole pattern sheet as a guide, make an opening of the specified size in the wall or ceiling panel. Note The thickness of the suitable wall or ceiling panel is 9 to 30 mm. 1-2. Loosen the two board clamp screws. Board clamp 1-3. Place the Adapter Panel inside the opening, and set the panel to the desired position using the positioning tabs. Adapter Panel Positioning tab 1-4. Clamp the ...