The ADPAK-4 background music system is a dedicated 100V line audio solution engineered for reliable, evenly distributed sound in commercial environments. At the heart of the system is the Adastra UX240 mixer amplifier, delivering stable 100V line operation alongside an integrated media platform with Bluetooth streaming, FM radio, USB playback, and rear-panel hardwired inputs for flexible source connectivity. Audio coverage is provided by six compact 5" 100V loudspeakers, each rated at 30W, making the kit well suited to retail, hospitality, education, and general commercial applications requiring consistent background audio. Supplied with 100 metres of speaker cable and an RCA-to-jack lead for straightforward system integration, ADPAK-4 is optimised for simple installation, dependable performance, and long-term operational efficiency in fixed 100V line deployments.

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The ADPAK-3 background music system is a 100V line audio solution tailored for open-plan commercial spaces where even coverage and visual design are equally important. Built around the Adastra UX240 mixer amplifier, the system offers dependable 100V line performance alongside an integrated media player featuring Bluetooth connectivity, FM radio, USB playback, and rear-panel hardwired inputs for flexible source integration.  Audio is delivered via six 6.5" pendant loudspeakers, each rated at 30W (100V), making this kit ideally suited to venues with higher ceilings such as restaurants, bars, retail units, and leisure facilities. Supplied with 100 metres of speaker cable and an RCA-to-jack lead for rapid system integration, ADPAK-3 provides a scalable, professional background music solution designed for straightforward installation, consistent audio performance, and long-term commercial reliability.

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The ADPAK-16 extension kit is a practical add-on solution designed to extend an existing 100V line PA system with high-impact outdoor or long-throw audio coverage with five 40W horn loudspeakers for enhanced speech intelligibility and projection. Multiple kits can be added to a single existing system with the right cabling. If an extension of fifteen speakers were needed, simply add three kits to the basket! Supplied with 100 metres of white LSZH speaker cable and an RCA-to-RCA interconnect lead, the kit enables straightforward integration into an existing audio system with minimal installation time. The horn speakers are optimised for demanding environments such as yards, loading bays, sports areas, and industrial sites, delivering focused sound dispersion and high efficiency, while the LSZH cabling supports safer installations in public and commercial buildings. ADPAK-16 provides a scalable, installer-friendly solution for rapidly increasing coverage and output where clarity and reach are the priority.

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The ADPAK-15 extension kit is a streamlined add-on solution designed to expand an existing 100V line PA or voice evacuation system quickly and efficiently, supplying five 40W fire-rated column loudspeakers complete with 100 metres of white LSZH speaker cable and an RCA-to-RCA lead for straightforward connection into an existing system. Multiple kits can be added to a single existing system with the right cabling. If an extension of fifteen speakers were needed, simply add three kits to the basket! Each column speaker features a heavy-duty die-cast aluminium alloy housing with protective grille and a fully rotatable rear wall-mount bracket for flexible installation, is water-resistant to IP66 for indoor or outdoor use, and is certified to EN54-24 for fire voice evacuation compliance, incorporating fire-resistant cabling and an internal 95°C thermal fuse to ensure system safety and reliability while extending coverage with minimal installation effort. Please note that the speaker cabling provided is not fire proof. If this is required, please contact us.

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The ADPAK-7 is a high-power, safety-compliant 100V line audio and paging system engineered for demanding commercial and public environments where clarity, coverage, and regulatory compliance are critical. At its core is the RM480UK 480W 100V amplifier, delivering substantial headroom to drive large speaker arrays reliably, supported by a dedicated paging microphone for clear, priority announcements.  Audio output is provided by ten 40W fire-rated column loudspeakers, housed in heavy-duty die-cast aluminium with a robust grille and fully rotatable rear wall-mount brackets for precise installation alignment. Rated to IP66, the speakers are suitable for indoor and outdoor use and are certified to EN54-24, making them fully compliant for fire voice evacuation systems, incorporating fireproof cabling and an integrated 95°C thermal fuse for system protection. Supplied with 200 metres of speaker cable and an RCA-to-jack lead for external audio sources, ADPAK-7 represents a professional-grade solution for transport hubs, educational facilities, industrial sites, and public buildings requiring reliable background music and compliant voice evacuation capability.

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The ADPAK-2 background music system is a purpose-built 100V line audio solution engineered for efficient sound distribution in commercial environments such as retail spaces, offices, and hospitality venues. At its core is the Adastra UX240 mixer amplifier, providing stable 100V line operation and a fully integrated media platform with Bluetooth streaming, FM radio, USB playback, and rear-panel hardwired inputs for seamless source connectivity. Audio is delivered via four discreet 8" ceiling speakers, designed to provide even coverage and a clean, unobtrusive aesthetic once installed. Supplied with 100 metres of speaker cable and an RCA-to-jack lead for quick integration with external audio sources, this kit is optimised for straightforward installation, consistent performance, and long-term operational reliability in fixed 100V line applications.

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The Optimal Audio OAPAK-18 is a high-coverage add-on speaker kit designed to extend existing Optimal Audio systems built around the ZONE series mixer-amplifiers. Developed for commercial venues requiring broader sound distribution and increased audio presence, this kit offers a robust and scalable solution using high-output surface-mount loudspeakers. OAPAK-18 is powered by the Optimal Audio Smart Amp 10 and features six CUBOID5-TX surface-mount loudspeakers, delivering strong output, improved low-frequency response and wide, even coverage. The system is designed to operate as a 100V line configuration, making it well suited to distributed audio applications where speaker quantity, cable efficiency and future scalability are key considerations. As part of the OAPAK add-on range, this kit integrates seamlessly with any existing Optimal Audio ZONE-based installation, providing dedicated amplification and expanded loudspeaker coverage without altering the core system. To complete installation, only balanced twin-conductor audio cable (microphone cable) is required to feed audio to the Smart Amp 10. This is available by the metre in black, allowing precise specification for each project.

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The Optimal Audio OAPAK-17 is a streamlined add-on speaker kit designed to expand existing Optimal Audio systems built around the ZONE series mixer-amplifiers. Targeted at venues requiring increased audio presence without deploying a larger speaker array, this kit offers a balanced approach to coverage, output and installation efficiency. OAPAK-17 is powered by the Optimal Audio Smart Amp 10 and includes four CUBOID5-TX surface-mount loudspeakers, delivering strong output and enhanced low-frequency performance in a compact deployment. The system is designed to operate either as a 100V line or low impedance system, making it ideal for distributed audio applications where reliability, cable efficiency and scalability are priorities. As with the wider OAPAK add-on range, this kit integrates seamlessly into existing ZONE-based installations, adding dedicated amplification and loudspeaker coverage without impacting the primary system configuration. To complete installation, only balanced twin-conductor audio cable (microphone cable) is required to feed audio to the Smart Amp 10. This is available by the metre in black, allowing precise specification for each project.

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The Optimal Audio OAPAK-16 is a high-capacity add-on speaker kit developed to extend existing Optimal Audio systems based on the ZONE series mixer-amplifiers. Designed for venues requiring greater sound coverage and increased audio presence, this kit provides a simple and scalable route to expanding background music performance using higher-output surface-mount loudspeakers. OAPAK-16 is powered by the Optimal Audio Smart Amp 10 (SAMP10) and features six CUBOID3-TX surface-mount loudspeakers, delivering enhanced coverage and discreet installation. The system is configured to operate exclusively as a 100V line system, making it well suited to distributed audio applications where speaker quantity, cable runs and future scalability are key considerations. The loudspeakers are avaibale in both black and hite making integration to any venue a simple task without having to worry about ruining aesthetics.  As with all add-on kits in the OAPAK range, OAPAK-16 is designed to integrate seamlessly with existing ZONE-based installations, adding dedicated amplification and loudspeaker coverage without impacting the core system. To complete installation, only balanced twin-conductor audio cable (microphone cable) is required to feed audio to the Smart Amp 10. This is available by the metre in black, allowing precise specification for each project.

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The Optimal Audio OAPAK-15 is a versatile add-on speaker kit designed to expand existing Optimal Audio systems based around the ZONE series mixer-amplifiers. Developed for venues where ceiling installation is impractical or undesirable, this kit provides a straightforward method of adding high-quality background music using compact surface-mount loudspeakers. OAPAK-15 is driven by the Optimal Audio Smart Amp 10 and features CUBOID3-TX surface-mount loudspeakers, offering flexible placement across walls, pillars or structural features. The system supports both 100V line and low-impedance operation, allowing it to be configured to suit a wide range of commercial installation scenarios. The CUBOID5 loudspeakers are supplied with the CIPKIT allowing for installation outdoors if required thanks to an IP54 rating. Designed as an expansion solution rather than a standalone system, OAPAK-15 integrates cleanly into any ZONE-based Optimal Audio installation, delivering additional coverage without disrupting the existing audio architecture. To complete installation, only balanced twin-conductor audio cable (microphone cable) is required to feed audio to the Smart Amp 10. This is available by the metre in black, allowing precise specification for each project.

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The Optimal Audio OAPAK-8 is a high-capacity background music system engineered for large and acoustically demanding commercial environments. Designed for multi-area hospitality venues, large bars, restaurants and mixed indoor/outdoor spaces, this kit builds on the advanced zoning architecture of OAPAK-7 while upgrading to higher-output loudspeakers for increased coverage and audio presence. At the core of OAPAK-8 is the Optimal Audio ZONE8P, delivering up to eight independent audio zones from a single, unified platform. The system includes two ZONEPAD4 wall controllers, ensuring every zone benefits from accessible, local control of both source selection and volume. Audio reproduction is handled by 16 CUBOID5 TX loudspeakers, providing enhanced output, improved low-frequency response and wider coverage compared to smaller formats. Each loudspeaker is accompanied by a CIPKIT, enabling IP54-rated installation for suitability in outdoor or exposed areas. With extended speaker cabling and multiple audio source leads supplied, OAPAK-8 is a complete, deployment-ready solution. Looking for low frequency extension? Why not take a look at one of our Optimal Audio subwoofer "Expansion" kits that allow for easy scalability of this system.

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The Optimal Audio OAPAK-7 is a comprehensive background music solution designed for larger and more complex commercial environments requiring advanced zoning, extensive loudspeaker coverage and robust external control. Ideal for multi-area hospitality venues, large bars, restaurants and mixed indoor/outdoor spaces, this kit delivers scalable performance with intuitive, decentralised control. At the core of OAPAK-7 is the Optimal Audio ZONE8P, providing up to eight independent zones of audio control from a single platform. The system is complemented by two ZONEPAD4 wall controllers, ensuring that every zone benefits from dedicated external control of both source selection and volume. Audio is delivered via 16 CUBOID3 TX loudspeakers available in black or white, each supplied with the CIPKIT accessory, enabling installation in exposed or outdoor areas thanks to the IP54-rated configuration. With generous speaker cabling supplied (2x100m rolls) and multiple source leads included, OAPAK-7 is a true end-to-end solution for demanding commercial applications. Looking for low frequency extension? Why not take a look at one of our Optimal Audio subwoofer "Expansion" kits that allow for easy scalability of this system.

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