Adastra High Power 100V Column Speakers - 60W - IP55
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Product Information
Full details
This guide is for installers and users of the Adastra High Power 100V Column Speakers (60W, IP55). It offers high-power, weatherproof audio for indoor and outdoor public address systems, delivering clear sound reproduction. A key consideration is understanding 100V line systems for optimal performance.
All features
| Model Part Number | 952.251UK |
|---|---|
| Brand | Adastra |
Extended Product Information
FAQs
What is a 100V line system?
A 100V line system uses a transformer to step up the voltage from the amplifier to 100V. This allows multiple speakers to be connected in parallel to a single amplifier channel without significant signal loss over long distances, and enables easy volume control by selecting different power taps on the speakers.
Can I use these speakers with a standard stereo amplifier?
Yes, if your amplifier has a low impedance output (e.g., 4-8 Ohms) and you connect the speaker in its low impedance mode (bypassing the 100V transformer, if applicable internally, or setting to the lowest power tap if it's a fixed 100V transformer). Ensure the amplifier's impedance rating is compatible with the speaker's impedance.
What does IP55 rating mean?
IP55 means the speaker is protected against dust ingress (the '5') and protected against low-pressure jets of water from any direction (the second '5'). This makes it suitable for many outdoor environments but not for submersion.
How do I select the correct power tap for a 100V system?
You select the power tap based on the desired volume and the total wattage of all speakers connected to the amplifier channel. For example, if you have a 60W amplifier and are using two speakers, you might set each speaker to a 30W tap. The total wattage of all taps selected should not exceed the amplifier's rating.
Can I mix these speakers with other 100V speakers on the same system?
Yes, provided they are all connected to the same 100V line system. You can mix speakers of different wattages and brands, but ensure the total wattage of all selected taps does not exceed the amplifier's output capacity.
What is the dispersion angle of the speaker?
The dispersion is 140° lateral and 40° axial. This means it covers a wide area horizontally but is more focused vertically.
Troubleshooting
No sound output
Verify amplifier power and volume. Check speaker wiring connections are secure at both the speaker and amplifier. Ensure the correct tap is selected for 100V operation or that the impedance is matched for low impedance use.
Distorted or crackling sound
Reduce amplifier volume. Check for loose wire connections. Ensure the speaker is not being overdriven by the amplifier, especially in low impedance mode. Inspect for any physical damage to the driver or enclosure.
Low volume from one speaker in a 100V system
Confirm the correct 100V tap is selected on the speaker. Check for breaks or poor connections in the speaker cable run. Ensure the total wattage of all speakers on the amplifier channel does not exceed the amplifier's rated output.
Speaker buzzing or vibrating
Ensure the speaker is securely mounted to a solid surface. Check that no internal components are loose. Verify the enclosure is sealed and the reflex port is clear.
Pros and Cons
Pros
- Excellent for outdoor and demanding environments due to IP55 rating.
- Versatile connection options with 100V line or low impedance modes.
- Durable construction with powder-coated aluminum enclosure.
- Clear and powerful sound output suitable for public address applications.
- Easy installation with an integrated adjustable wall bracket.
Cons
- Requires a compatible 100V line transformer or amplifier for 100V operation.
- Sound dispersion is directional, requiring careful placement for wide coverage.
- Primarily designed for PA use, not necessarily for critical hi-fi listening.
- Specific impedance settings need to be understood for low-impedance use.
Setup, Compatibility & Care
Setup:
- Mounting: Use the integral adjustable wall bracket to securely mount the speaker. Ensure the mounting surface is sturdy enough to support the speaker's weight.
- Wiring: Connect the speaker using the Euroblock screw terminals. Select either 100V line operation or low impedance operation based on your amplifier and system design.
- 100V Line: Connect the desired tap (e.g., 60W, 30W, 15W) to the positive terminal and the common (COM) to the negative terminal of your 100V amplifier output.
- Low Impedance: Connect the speaker's internal impedance (typically 8 Ohms) to the appropriate speaker output terminals on your amplifier.
- Positioning: Angle the speaker using the adjustable bracket to achieve the desired sound coverage.
Compatibility:
- Amplifier: Compatible with amplifiers supporting 100V line distribution or standard low impedance (e.g., 4-8 Ohm) outputs, depending on the selected operation mode.
- Cabling: Use appropriate gauge speaker cable suitable for outdoor or permanent installations.
Care:
- Cleaning: Wipe the exterior with a soft, damp cloth. Avoid using abrasive cleaners or solvents.
- Maintenance: Periodically inspect connections and mounting for security. Ensure no obstructions block the reflex port.
- Protection: While IP55 rated, avoid direct, prolonged exposure to extreme weather conditions if possible, or ensure secure sheltering.