Free Delivery on all orders over £99*

Adastra RH15V Weatherproof 100V Rectangular Horn Speaker

£4499
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The Adastra RH15V is a rectangular horn speaker built for outdoor and large-area PA (public address) work. It runs on a 100V line system, which lets you connect several speakers along a single cable run and set the volume of each unit independently. A rotary tapping switch on the back gives you a choice of power settings, so you can match the output to the space and balance levels across a whole installation without swapping components.

The housing is moulded from high impact ABS, giving it good resistance to knocks and to weather. It carries an IP66 rating, meaning it is protected against dust and against strong jets of water from any direction. That makes it suitable for exposed sites such as car parks, forecourts, sports grounds and industrial yards where a speaker needs to cope with rain and grime year round.

Sound delivery comes from a reflex-loaded driver working through a rectangular flared aperture. This spreads audio efficiently and in a directed pattern, so speech and announcements carry clearly across wide areas rather than dispersing in all directions. The rectangular flare is a practical shape for mounting in rows along walls or gantries. As part of the Adastra RH range, the RH15V suits background music and voice paging where reach and durability matter more than fine detail. Fit it with the tapping switch set for your zone, wire it into your 100V amplifier, and it will run reliably outdoors.

Specification
Weight 1.48KG
Dimensions 312mm x 255mm x 152mm
SPL @ rated power 118dB
SPL @ 1W/1m 106dB
Impedance 4k / 2k / 1k / 670 Ohm
Tappings 2.5 / 5 / 10 / 15W
Frequency response 275Hz - 7kHz (±3dB)
Power max. 23W
Power rms 15W
IP rating IP66
Frequently Asked

What does a 100V line system do?

It lets you wire many speakers on one cable run over long distances, setting each speaker's volume with its tapping switch. This suits large PA installations with several zones.

Is the RH15V suitable for outdoor use?

Yes. It is moulded from high impact ABS and rated IP66, so it resists dust and strong water jets. It is built for exposed sites such as car parks, forecourts and yards.

How do I set the volume on this speaker?

A rotary tapping switch on the rear selects between several power settings. This lets you match output to the area and balance levels across an installation.

What is the horn speaker best used for?

It is designed for background music and voice paging over large areas. The directed sound pattern helps announcements carry clearly outdoors.

What does the IP66 rating mean?

IP66 confirms full protection against dust ingress and against powerful water jets from any direction, making the speaker fit for wet outdoor conditions.

Do I need a special amplifier?

Yes, you need a 100V line amplifier. The speaker's transformer connects to the 100V output and the tapping switch sets how much power it draws.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

See it lit, in person

Lighting looks different in a real room. Come and see our range at our showrooms in Birmingham, Hong Kong and Dubai, or talk to our design team wherever you are.

Niori lighting showroom trailer video with closeups of alabaster lighting

Why Niori

Over 20 years lighting homes worldwide

We are a specialist lighting and mirror retailer with showrooms in Birmingham, Hong Kong and Dubai, shipping to customers around the world. Our own design team is here to help, from first idea to final fitting.

Genuine products

An authorised stockist

Every product arrives brand new with the full manufacturer warranty. Found it cheaper elsewhere? Ask us about a price match.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

Design help

Not sure what you need?

Our design team can help you plan your lighting, share photos and videos of stock, and send samples worldwide. Book a showroom visit in Birmingham, Hong Kong or Dubai, or ask about our lighting design service.

You Might Also Like

Recommended For You

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    Description

    The Adastra RH15V is a rectangular horn speaker built for outdoor and large-area PA (public address) work. It runs on a 100V line system, which lets you connect several speakers along a single cable run and set the volume of each unit independently. A rotary tapping switch on the back gives you a choice of power settings, so you can match the output to the space and balance levels across a whole installation without swapping components.

    The housing is moulded from high impact ABS, giving it good resistance to knocks and to weather. It carries an IP66 rating, meaning it is protected against dust and against strong jets of water from any direction. That makes it suitable for exposed sites such as car parks, forecourts, sports grounds and industrial yards where a speaker needs to cope with rain and grime year round.

    Sound delivery comes from a reflex-loaded driver working through a rectangular flared aperture. This spreads audio efficiently and in a directed pattern, so speech and announcements carry clearly across wide areas rather than dispersing in all directions. The rectangular flare is a practical shape for mounting in rows along walls or gantries. As part of the Adastra RH range, the RH15V suits background music and voice paging where reach and durability matter more than fine detail. Fit it with the tapping switch set for your zone, wire it into your 100V amplifier, and it will run reliably outdoors.

    Specification
    Weight 1.48KG
    Dimensions 312mm x 255mm x 152mm
    SPL @ rated power 118dB
    SPL @ 1W/1m 106dB
    Impedance 4k / 2k / 1k / 670 Ohm
    Tappings 2.5 / 5 / 10 / 15W
    Frequency response 275Hz - 7kHz (±3dB)
    Power max. 23W
    Power rms 15W
    IP rating IP66
    Frequently Asked

    What does a 100V line system do?

    It lets you wire many speakers on one cable run over long distances, setting each speaker's volume with its tapping switch. This suits large PA installations with several zones.

    Is the RH15V suitable for outdoor use?

    Yes. It is moulded from high impact ABS and rated IP66, so it resists dust and strong water jets. It is built for exposed sites such as car parks, forecourts and yards.

    How do I set the volume on this speaker?

    A rotary tapping switch on the rear selects between several power settings. This lets you match output to the area and balance levels across an installation.

    What is the horn speaker best used for?

    It is designed for background music and voice paging over large areas. The directed sound pattern helps announcements carry clearly outdoors.

    What does the IP66 rating mean?

    IP66 confirms full protection against dust ingress and against powerful water jets from any direction, making the speaker fit for wet outdoor conditions.

    Do I need a special amplifier?

    Yes, you need a 100V line amplifier. The speaker's transformer connects to the 100V output and the tapping switch sets how much power it draws.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.