Adastra CS-6F Fire-Rated 6.5" 100V/8 Ohm Surface Mount Speaker - EN54-24 Certified
The Adastra CS-6F is a Fire-Rated 6.5" 100V Surface Mount Speaker certified to EN54-24, housed in a powder-coated steel enclosure with a ceramic terminal block, thermal fuse and internal cross-bar mounting assembly — ideal for public address installations where recessed fitting is not possible or would compromise a fire barrier.
EN54-24 Fire-Rated Surface Mount Speaker for Commercial PA Installations
The Adastra CS-6F is a professional fire-rated surface mount loudspeaker designed for 100V distributed public address systems in commercial buildings where recessed ceiling installation is not possible or would compromise an existing fire barrier. Fully certified to EN54-24 for use in fire-rated commercial installations, the CS-6F provides a practical and compliant surface-mounting solution for corridors, stairwells, plant rooms, service areas and any other environment where a flush ceiling speaker cannot be installed. The powder-coated steel housing and grille provide robust, durable construction suitable for demanding commercial and industrial environments.
Fire-Safe Internal Construction
Inside the CS-6F, the 6.5" full-range driver is connected via fire-resistant cable to a ceramic terminal block and thermal fuse — ensuring the speaker assembly maintains its integrity and continues to function correctly in elevated temperature conditions during a fire event. The 100V line transformer provides tappings at 0.75W, 1.5W, 3W and 6W for flexible integration into large-scale distributed audio systems, and cable access is via gland knock-out holes for clean, professional installation wiring.
Practical Surface Mounting
The CS-6F mounts via an internal removable cross-bar assembly that allows the speaker to be surface-mounted to ceilings or walls without the need for a recessed back box — providing a discreet, low-profile public address solution in spaces where conventional recessed installation is not an option. The powder-coated steel construction ensures long-term durability in commercial environments.
Adastra CS-6F Key Features:
- EN54-24 Certified: Fully compliant for use in fire-rated commercial public address and voice alarm installations.
- 6.5" Full-Range Driver: 93dB sensitivity and 150Hz–20kHz frequency response for clear speech and music reproduction.
- Powder-Coated Steel Housing & Grille: Robust, durable construction for demanding commercial and industrial environments.
- Ceramic Terminal Block & Thermal Fuse: Fire-safe internal wiring for reliable operation in elevated temperature conditions.
- Fire-Resistant Internal Cable: Maintains speaker integrity during a fire event.
- 100V Line Transformer: Tappings at 0.75W, 1.5W, 3W and 6W for flexible distributed system integration.
- Internal Cross-Bar Mounting Assembly: Surface mounts to ceilings or walls without a recessed back box.
- Cable Access via Gland Knock-Out Holes: Clean, professional installation wiring.
- Ideal Where Recessed Installation is Not Possible: Stairwells, corridors, plant rooms and service areas.
- 8 Ohm Low Impedance: Available for direct amplifier connection where required.
Specifications:
Adastra - Commercial Amplifiers & Speakers
View our shipping and delivery information below. All prices include VAT.
Important notice for non-UK orders: Any order being shipping outside of the UK will incur an import tax. See below for more information.
Cut-off Times
Orders must be placed before 3:30pm to guarantee same-day dispatch. Any orders placed after this time are not guaranteed to be shipped the same day, and are more likely to be shipped the next working day.
To guarantee Saturday Delivery, orders must ideally be placed before 2pm.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
Orders placed over the weekend or Friday after cut-off will be processed and shipped the following Monday (or Tuesday during bank holidays).
Mainland UK Delivery Charges
Note: Next-day services are classed as working days (Mon-Fri) and do not include weekends. Please choose Saturday delivery if you require the item over the weekend.
Please also note orders with a high number of boxes may be subject to an additional charge.
All delivery options will be available at the checkout stage. Please ensure you add a mobile number to your order for tracking information.
Offshore & International
We ship to Scottish Highlands, Islands, Ireland and the EU. Please see the table below for base prices. Please note that these prices are subject to change based on the number of boxes.
The following postcodes fall under 'Highlands & Islands', and are subject to the above rates/lead time.
- Scottish Highlands: FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40 (excluding PA38), PH19-26, PH30-41, PH49-50
- Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA38, PA41-49, PA60-78, PH42-44, ZE1-3
If a UK Mainland next-day service is selected at checkout, please be aware that it won't be sent on that service.
If you require a next-day service to Northern Ireland and the highlands, get in touch so we can assist further.
EU Import Tax
Any goods shipped outside of the UK, over a certain value, will incur an import tax. The cost and rate will depend on the country and the order value.
This is a legal requirement and MUST be paid prior to delivery in order to receive your goods. You will be contacted by the courier once the order is dispatched to pay the fee.
Failure to pay import tax when applicable will result in the order being shipped back to Audio Volt. Any returned goods sent back to us due to non-payment of import tax are NOT ELIGIBLE for a refund on the shipping charge.
You can obtain an import duty estimate here.
Delivery Notes
On delivery, you must inspect the goods carefully for damage as Audio Volt is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Audio Volt of such within three working days from the date of delivery.
60 Day Returns Policy
We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:
- Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product's return.
- Contact our Customer Services Team on 02476 369890 (or email info@audiovolt.co.uk). We will then send you an RMA number and a returns form, which needs to be completed and sent back with the returned item(s).
- If the order has been unpacked, re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.
- When returning an item, please obtain a proof of postage receipt from the courier.
Returned items must be mailed within 10 days of when the RMA number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.
Please note: our returns policy is quite straightforward, but there are a number of conditions that we ask our customers to comply with before applying:
- It is your responsibility to request a return. If you don't tell us you want to make a return, we don't know. Once you do tell us, we will do everything we can to action it.
- If you have not requested a return within 60 days of receiving an order, we will assume that you are intending to keep it, and we will not authorise a return.
- We always refund the payment according to how the original purchase was made and aim to do so within 72 hours of the return being received by us.
- Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.
- Delivery charges will not be refunded unless the delivered goods are faulty.
- Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.
- Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369890 if you believe your item has developed a fault.
Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Audio Volt to process the return quickly.
Any Questions?
If you have any questions about our returns policy, please telephone us on 02476 369890 or email us at info@audiovolt.co.uk.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
