Adastra Rectangular Horn Speakers - Grey - RH40V

PA horn speakers with a 100V transformer offering several different power settings. The housing is...

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Product Information

Full details

This guide is for installers and users of the Adastra 952.249UK PA horn speaker, designed for clear and durable sound projection in outdoor or demanding environments. Its key benefit is a robust, weatherproof construction with adjustable power settings for versatile public address applications, though careful consideration of its specific frequency response is needed for optimal audio quality. This guide covers its features, setup, and maintenance.

All features

ColourGrey
SeriesRh40V
Model Part Number952.249UK
BrandAdastra

Extended Product Information

FAQs

What type of amplifier is required for this speaker?

This speaker requires a 100V line public address (PA) amplifier. It is not compatible with standard low-impedance (4-16 ohm) amplifier outputs.

How do I select the power output?

The speaker features a rotary tapping switch. Simply turn the switch to the desired power setting (e.g., 40W, 30W, 20W, 10W, or 5W) corresponding to your system's needs.

Can this speaker be used outdoors?

Yes, the speaker has an IP66 rating, making it highly resistant to dust and water ingress, and suitable for outdoor use.

What is the frequency range of this speaker?

The frequency response is 180Hz - 7kHz (±3dB), which is optimized for speech intelligibility and general announcements.

How is the speaker mounted?

The speaker is designed for wall-mounting. It should be attached securely to a suitable surface using appropriate mounting hardware.

What is the weight of the speaker?

The speaker weighs 3.33 kg.

Is this speaker suitable for playing music?

While it can reproduce music, its frequency response is primarily optimized for speech and announcements. For high-fidelity music reproduction, speakers with a wider frequency range would be more suitable.

Troubleshooting

No sound output

Verify that the 100V amplifier is powered on and functioning correctly. Check that the speaker is wired to the correct 100V output terminals on the amplifier, including the common connection. Ensure the selected power tapping on the speaker is not set to 0W (if applicable) and that the total system wattage does not exceed the amplifier's capacity.

Low volume or distorted sound

Check the selected power tapping on the speaker; try a higher setting if appropriate for the environment. Ensure the amplifier's volume is turned up. Verify that the speaker's wiring connections are secure and that the total load on the amplifier is within its rated capacity. Clean any debris from the speaker horn.

Speaker not operating after exposure to weather

Although IP66 rated, ensure no direct high-pressure water jets have entered the speaker housing. Allow the speaker to dry completely before testing. Inspect for any visible damage that might have compromised the seal. If damage is found, professional inspection or replacement may be necessary.

Pros and Cons

Pros

  • Highly durable and weatherproof ABS housing for long-term reliability.
  • IP66 rating provides excellent protection against dust and water.
  • Versatile power settings via 100V tapping switch for system flexibility.
  • Designed for straightforward wall mounting.
  • Robust construction suitable for challenging environments.

Cons

  • Frequency response is optimized for speech and announcements, not high-fidelity music reproduction.
  • The weight of 3.33kg requires secure mounting.
  • Requires a 100V amplifier system for proper operation.

Setup, Compatibility & Care

Setup:

  1. Mounting: Securely attach the speaker to a suitable wall using appropriate hardware (not included). Ensure the mounting bracket is rated for the speaker's weight (3.33kg) and the intended environment.
  2. Wiring: Connect the speaker to a 100V line amplifier. Identify the desired power tapping on the rotary switch (e.g., 40W, 20W, 5W). Connect the common (COM) wire from the amplifier to the common terminal on the speaker, and the desired wattage terminal (e.g., 20W) to the positive (+) terminal on the speaker.
  3. Positioning: Aim the speaker towards the intended listening area for optimal sound projection.

Compatibility:

  • Requires a 100V line public address (PA) amplifier. This speaker is not designed for standard low-impedance amplifier outputs.
  • Ensure the total wattage of all 100V speakers connected to the amplifier does not exceed the amplifier's total output capacity.

Care:

  • Cleaning: Wipe the exterior with a slightly damp, soft cloth. Avoid using abrasive cleaners or solvents.
  • Maintenance: Periodically check the mounting security and cable connections. Ensure the speaker aperture is free from obstructions (e.g., leaves, debris) that could affect sound output or performance.
  • Inspection: In very harsh environments, an occasional visual inspection for any signs of damage or wear is recommended.

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