TOA H-3 EX 2-Way Wide-Dispersion 70V/100V Wall-Mount Speaker

TOA H-3 EX 2-Way Wide-Dispersion Wall-Mount Speaker

The TOA H-3 EX 2-Way Wide-Dispersion Wall-Mount Speaker is a professional architectural loudspeaker designed for commercial background music, paging, and sound reinforcement. Featuring dual 4" woofers, a 1" dome tweeter, and selectable 8-ohm, 16-ohm, 70V, and 100V operation, it delivers broad sound coverage with discreet wall-mounted installation.

Designed for hotels, restaurants, museums, houses of worship, offices, and retail environments, the TOA H-3 EX combines wide horizontal sound dispersion with an architectural enclosure that minimizes visible mounting hardware. Its two-way speaker system incorporates dual 4" cone woofers and a 1" dome tweeter with a neodymium magnet. The sealed enclosure supports consistent sound reproduction, while TOA's minimum-reflection design helps reduce unwanted acoustic reflections associated with conventional bracket-mounted speakers. The loudspeaker provides 150W continuous program power handling at 8 ohms and selectable transformer taps up to 30W for distributed audio systems. This flexibility supports both individual speaker installations and larger commercial sound reinforcement networks.

The H-3 EX features a built-in 70V/100V matching transformer, a detachable terminal block with loop-through connections, and an internal overload protection circuit. Its fire-resistant ABS enclosure meets UL94 V-0 material requirements, while the off-white metal grille can be painted to complement the surrounding architecture. A supplied base frame and electrical box mounting screws simplify installation with a compatible two-gang electrical box. Measuring approximately 11.6" wide, 12.5" high, and 5.1" deep, the speaker provides a compact solution for permanent commercial audio installations.

Key Features

• Wide-Dispersion Speaker Design: Provides broad sound coverage to help distribute music and speech throughout commercial spaces while reducing gaps between installed speakers.
• Two-Way Speaker Configuration: Combines dual 4" cone woofers with a 1" dome tweeter for balanced reproduction of music, announcements, and spoken presentations.
• 150W Continuous Program Handling: Supports professional low-impedance audio applications with 150W continuous program power handling at 8 ohms.
• 70V/100V Distributed Audio Compatibility: Includes an integrated matching transformer with selectable power taps up to 30W for commercial paging and background music systems.
• Architectural Wall-Mount Design: Features a low-profile enclosure that installs without exposed external mounting brackets for a clean, unobtrusive appearance.
• Internal Overload Protection: Protects the high-frequency driver from excessive input levels through an automatically resetting protection circuit.
• Paintable Metal Grille: Features an off-white steel grille that can be painted to coordinate with the surrounding interior design.
• Convenient Installation Connections: Provides removable screw-terminal connections, loop-through wiring capability, and included mounting hardware for compatible two-gang electrical boxes.

Wide-Dispersion Sound Coverage for Commercial Installations

Broad Sound Distribution

The TOA H-3 EX is engineered to distribute sound across a wide listening area without requiring conventional protruding speaker brackets.

Its horizontally dispersed sound field helps deliver audio to listeners positioned directly in front of the loudspeaker and between adjacent speaker locations.

This coverage is especially useful for commercial background music and paging systems installed along walls in restaurants, hotel corridors, retail spaces, and public facilities.

TOA's current product documentation describes a 180-degree coverage pattern, supporting installations where broad sound distribution is a priority.

Minimum-Reflection Architectural Design

The H-3 EX uses an enclosure designed to reduce unwanted reflections from surrounding surfaces.

Unlike traditional bracket-mounted loudspeakers that extend farther into a room, the speaker integrates closely with the wall.

This design helps reduce acoustic coloration associated with reflections while providing a clean exterior appearance for modern interiors.

Two-Way Speaker System with Dual 4-Inch Woofers

Dual Low-Frequency Drivers

The H-3 EX incorporates two 4" cone-type low-frequency drivers. These drivers reproduce the lower and middle portions of the audio spectrum, supporting music playback and speech reinforcement.

The dual-driver configuration works with the speaker's wide-dispersion enclosure to provide consistent sound distribution across the listening area.

One-Inch Dome Tweeter

A 1" dome tweeter handles higher-frequency audio content, including vocal detail and musical harmonics.

The tweeter incorporates a neodymium magnet and operates through the speaker's internal passive crossover network.

This arrangement supports a two-way frequency response extending from 100 Hz to 20 kHz.

Integrated Passive Crossover

The speaker incorporates an internal crossover operating at 4 kHz.

The crossover directs appropriate frequency ranges to the low-frequency drivers and high-frequency tweeter.

TOA specifies a 12 dB-per-octave low-pass filter and an 18 dB-per-octave high-pass filter.

These filters support the transition between the drivers and contribute to the speaker's intended frequency response.

Flexible Low-Impedance and 70V/100V Operation

8-Ohm and 16-Ohm Speaker Connections

The H-3 EX supports conventional low-impedance operation through selectable 8-ohm and 16-ohm settings.

In 8-ohm operation, the loudspeaker provides 150W continuous program power handling and 50W continuous pink-noise power handling.

These operating options support integration with compatible professional amplifiers and installed audio systems.

Built-In 70V/100V Matching Transformer

An integrated matching transformer allows the loudspeaker to operate within distributed commercial audio systems.

Selectable transformer taps provide different power levels, allowing installers to balance individual speaker output with the available amplifier capacity.

70V Transformer Tap Settings

• 30W: 170 ohms
• 15W: 330 ohms
• 7.5W: 670 ohms
• 3.75W: 1.3 kilohms

100V Transformer Tap Settings

• 30W: 330 ohms
• 15W: 670 ohms
• 7.5W: 1.3 kilohms

These selectable settings make the speaker suitable for distributed music and paging installations using compatible 70V or 100V amplifiers.

Internal Speaker Protection and Reliable Operation

Automatic Overload Protection

The H-3 EX incorporates an internal protection circuit designed to help prevent damage to its high-frequency driver.

When excessive input levels activate the protection circuit, the system reduces the incoming signal to protect the tweeter.

After the overload condition is removed, the circuit automatically resets, typically within approximately 10 seconds.

Sealed Speaker Enclosure

The loudspeaker uses a sealed cabinet to house its two-way driver system.

The enclosure is constructed from fire-resistant ABS resin, providing a durable housing suitable for permanent architectural installation.

TOA identifies the enclosure material as meeting UL94 V-0 flammability requirements.

Architectural Wall-Mount Installation

Discreet Installation with Two-Gang Electrical Boxes

The H-3 EX is designed for installation using a compatible two-gang electrical box.

The included base frame provides a mounting interface that helps position the loudspeaker securely against the wall.

Its mounting arrangement eliminates the need for a visible external speaker bracket.

This is particularly useful for architectural spaces where exposed mounting hardware would detract from the interior design.

Detachable Screw-Terminal Connections

The speaker includes a detachable screw-terminal connector with two positive and two negative terminals.

These connections support conventional speaker wiring and loop-through connections for compatible distributed audio installations.

The terminal assembly accommodates solid or stranded speaker cable ranging from 24 AWG to 14 AWG.

Paintable Off-White Grille

The H-3 EX features an off-white front frame and perforated steel grille.

The grille can be painted to coordinate with surrounding walls, allowing installers to integrate the speaker into customized interior finishes.

The rear enclosure is constructed from black fire-resistant ABS resin, while the front surfaces provide the lighter architectural appearance.

Professional Commercial Audio Applications

• Hotels and Hospitality: Provide distributed background music and announcements in corridors, reception areas, and shared interior spaces.
• Restaurants and Cafes: Deliver music and paging audio throughout dining areas while maintaining a discreet architectural appearance.
• Retail Stores: Support promotional announcements and background music through compatible commercial audio systems.
• Houses of Worship: Provide supplemental speech and music reinforcement in suitable indoor listening areas.
• Museums and Galleries: Integrate audio into exhibit spaces where visual appearance and broad sound coverage are important.
• Corporate Offices: Support background music, informational announcements, and paging in professional interior environments.

Technical Specifications

• Brand: TOA
• Manufacturer: TOA Electronics
• Model: H-3 EX
• Product Series: H Series Interior Design Speakers
• Product Type: Passive Two-Way Wall-Mount Loudspeaker
• Speaker Configuration: Two-Way
• Enclosure Type: Sealed
• Installation Type: Wall Mount
• Recommended Mounting: Two-Gang Electrical Box
• Manufacturer-Listed Coverage: 180 Degrees
• Low-Frequency Drivers: 2 x 4" Cone-Type Woofers
• High-Frequency Driver: 1 x 1" Dome Tweeter
• High-Frequency Magnet: Neodymium
• Frequency Response: 100 Hz to 20 kHz (-10 dB)
• Sensitivity: 89 dB SPL (1W/1m)
• Sensitivity Measurement: Half-Space, Wall-Mounted Installation
• Crossover Frequency: 4 kHz
• Low-Pass Filter Slope: 12 dB/Octave
• High-Pass Filter Slope: 18 dB/Octave
• Continuous Program Power Handling: 150W at 8 Ohms
• Continuous Pink-Noise Power Handling: 50W at 8 Ohms
• Rated Input: 30W at 16 Ohms, High-Impedance Operation
• Selectable Low-Impedance Settings: 8 Ohms and 16 Ohms
• Distributed Audio Compatibility: 70V and 100V
• Integrated Matching Transformer: Yes
• Maximum Transformer Tap: 30W
• 70V Tap - 30W: 170 Ohms
• 70V Tap - 15W: 330 Ohms
• 70V Tap - 7.5W: 670 Ohms
• 70V Tap - 3.75W: 1.3 Kilohms
• 100V Tap - 30W: 330 Ohms
• 100V Tap - 15W: 670 Ohms
• 100V Tap - 7.5W: 1.3 Kilohms
• Overload Protection: Internal Automatic-Reset Protection Circuit
• Protection Recovery: Approximately 10 Seconds After Overload Removal
• Input Connector: Detachable Screw-Terminal Block
• Terminal Configuration: 2 Positive and 2 Negative Terminals
• Loop-Through Wiring: Supported
• Compatible Speaker Cable: 24 AWG to 14 AWG
• Supported Cable Types: Solid and Stranded
• Enclosure Material: Fire-Resistant ABS Resin
• Enclosure Color: Black
• Front Frame Material: Fire-Resistant ABS Resin
• Front Frame Color: Off-White
• Grille Material: Steel Plate
• Grille Finish: Off-White Paint
• Paintable Grille: Yes
• Base Frame Material: Plated Steel
• Material Flammability Classification: UL94 V-0
• External Mounting Bracket: Not Required
• Dimensions (W x H x D): 11.6" x 12.5" x 5.1"
• Product Weight: 7.3 lb
• Unit of Measure: Each

What's in the Box

• 1 x TOA H-3 EX Two-Way Wall-Mount Speaker
• 1 x Front Grille
• 1 x Base Frame
• 1 x Set of Electrical Box Mounting Screws