HA-450H - Loudspeaker TOA - Free user manual and instructions

Product Type	Horn Array Speaker System
Brand	TOA
Model	HA-450H
Components Included	4 Speaker Horns, 4 Speaker Drivers, 4 Driver Covers, 4 Driver Adapters, 4 Joining Plates, Hardware (Bolts, Nuts, Washers)
Rated Power	200 W (4 x 50 W at 70 V line)
Impedance (Factory Setting)	Adjustable via transformer; default 50 W at 70 V line (per driver)
Frequency Response	200 Hz – 16 kHz (typical for horn speakers)
Sensitivity	105 dB SPL 1W/1m (typical)
Dispersion Angle	60° horizontal x 40° vertical (typical for horn array)
Dimensions (approx.)	600 mm x 600 mm x 500 mm (each horn approx. 300 mm)
Weight (approx.)	30 kg (complete array)
Material	Horns: ABS plastic; Drivers: Metal; Covers: Metal/PVC
Color	Black (typical)
Weather Resistance	Drain hole for outdoor use; splash-proof design
Mounting	Multi-horn array via joining brackets; bolts included
Input Connection	Speaker cable via clamp terminal on driver cover
Application	Outdoor/indoor public address, paging systems, industrial signaling
Maintenance	Clean with dry cloth; check bolt tightness; verify cable connections
Safety	Use appropriate mounting hardware; ensure proper load distribution; avoid overloading amplifier
Spare Parts Availability	Contact TOA or authorized dealers for drivers and hardware

Frequently Asked Questions - HA-450H TOA

How do I assemble the HA-450H horn array?

Place four speaker horns on a flat surface with logos up. Loosely join them using M8 bolts and joining plates. Attach front and rear brackets with M6 and M10 bolts. Tighten all bolts after assembly. Then attach driver adapters and drivers per instructions.

How do I set the transformer impedance for the HA-450H?

The HA-450H has an adjustable transformer. Factory setting is 50 W at 70 V line. To change, remove the driver cover and adjust the tap according to your system design. Ensure power matches amplifier output.

What is the correct orientation for the driver cover drain hole?

When installing the driver cover, ensure the drain hole is positioned at the bottom side to allow water drainage. This is critical for outdoor weather resistance.

How do I connect the speaker cable to the HA-450H?

Route the speaker cable through the cable hole on the driver cover. Strip ends, insert into clamp terminal, and tighten the clamp screw securely. Ensure correct polarity.

Can I use the HA-450H indoors?

Yes, the HA-450H is suitable for both indoor and outdoor use. Its weather-resistant design (drain hole, sealed drivers) makes it ideal for covered outdoor areas or industrial indoor spaces.

How do I replace a speaker driver on the HA-450H?

Disconnect power. Remove the four screws on the driver cover to access the driver. Unscrew the driver from the adapter. Install a new driver, ensure gasket and spacers are in place, then reassemble the cover.

What is the maximum power handling of the HA-450H array?

Each driver is rated for 50 W at 70 V line, so the total array can handle up to 200 W RMS. Ensure your amplifier is not overpowered to avoid damage.

How should I maintain the HA-450H speaker system?

Periodically check all bolts and connections for tightness. Clean the horns with a dry cloth. Inspect driver cables and transformer taps if system performance changes. Keep drain holes clear.

What tools are required for assembly?

You will need appropriate wrenches for M6, M8, M10 bolts and nuts. A screwdriver for small screws on driver adapters. All hardware is included.

Can I use only one horn from the array?

The HA-450H is designed as a complete array for optimum dispersion. Using a single horn may affect coverage pattern. For single unit use, consider a different TOA model.

USER MANUAL HA-450H TOA

This is a quick instruction guide for assembling the HA-450 series Horn Array Speaker System.

COMPONENTS

A: Speaker Horn (4 pcs)
B: Speaker Driver Cover (4 pcs)
C: Bolts, Nuts & Washers (4 bags)
D: Driver Adapter (4 pcs)
E: Speaker Driver (4 units)

F: Joining Plate (4 pcs)
G: M8 Bolts, Nuts & Washers x 7 sets (1 bag)
H: M10 Bolts, Nuts & Washers x 8 sets (1 bag)

INSTALLATION

1. Place four Speaker Horns (A) next to each other on a flat surface with all brand logos located on the top side.

1. Loosely fix all Speaker Horns (A) manually with the supplied M8x45mm bolts, nuts and washers (G).

1. Loosely attach a first Joining Bracket (F) manually on the front side of the speaker with the supplied M6x30mm bolts, nuts and washers (C).

1. Turn over the whole assembly and attach the second Joining Bracket (F) on the other side in the same manner.

Exterior view of a multi-tiered industrial storage unit with red arrows indicating flow or movement (no text or symbols visible)

1. Attach the third Joining Bracket (F) manually on the rear side of the speaker with the supplied M10x25mm (H) and M10x35mm (C) bolts and washers.

2. Turn over the whole assembly and attach the fourth Joining Bracket (F) on the other side in the same manner.

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1. Fix all bolts in 2, 3, 4, 5 and 6 tightly by using appropriate tools.

2. Place the assembly front side down as shown below.

3. Loosen the screw on the side of the mounting throat.

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1. Screw in the Driver Adapter (D) tightly. 11. Tighten the side screw to fix the Adapter.

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1. Attach other Driver Adapters (D) in the same manner.

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1. Put a Rubber Gasket inside of the Adapter and then place a spacer on the Adapter. (These two parts are supplied with the Driver Cover (B).)

1. Put another spacer on the Driver Cover (D).

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1. Put a Driver Cover (D) on the Adapter with the drain hole located on the bottom side.

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1. Screw in the Speaker Driver (E.)

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1. Put the speaker cable through the cable hole of the Driver Cover (D), and fix the clamp.

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1. Fix four screws on the Driver Cover.

2. If you purchased "HA-450 H", adjust the transformer's impedance to meet your system design. (The factory setting is 50W@70V.)

1. Attach other Speaker Drivers (E) and Covers (D) in the same manner.

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