Passive Subwoofers

26 products

  • VOID Acoustics Stasys 118 18-Inch High-Performance Passive Subwoofer £POA.

    VOID Acoustics Stasys 118 18-Inch High-Performance Passive Subwoofer £POA.

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    The VOID Acoustics Stasys 118 is a high-performance, reflex-loaded passive subwoofer designed to deliver exceptional low-frequency output with precision and control, built around traditional acoustic principles refined through VOID’s Stasys design philosophy. It features a single 18-inch neodymium low-frequency driver with a high-excursion 4-inch voice coil, capable of handling 1.2 kW AES, providing powerful, articulate bass for demanding professional sound reinforcement applications. To extract maximum performance, the Stasys 118 enclosure has undergone advanced resonance mapping procedures used across the Stasys low-frequency range. This process has informed material selection, internal brace positioning and cabinet geometry to minimise destructive resonances and cabinet coloration, resulting in a structurally optimised enclosure with minimal mass and significantly increased acoustic output. Extensive transducer research and comparative testing led to the development of a bespoke 18-inch driver, with careful optimisation of cone materials, surround designs, voice coil topology and magnetic flux characteristics. These refinements, combined with precise enclosure tuning, deliver exceptional low-frequency extension, clarity and impact beyond conventional subwoofer designs. Constructed from 18 mm birch plywood, the Stasys 118 offers a robust yet acoustically efficient cabinet engineered for touring and installed sound systems where uncompromising low-frequency performance is required. It represents a state-of-the-art subwoofer solution for high-end professional audio systems from VOID Acoustics. £POA. Contact us for pricing.

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    £0.00

  • VOID Acoustics Stasys 218 Dual 18-Inch High-Performance Passive Subwoofer

    VOID Acoustics Stasys 218 Dual 18-Inch High-Performance Passive Subwoofer

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    The VOID Acoustics Stasys 218 is a high-output, reflex-loaded passive subwoofer engineered to deliver extreme low-frequency performance for large-scale professional sound reinforcement systems, combining traditional acoustic principles with VOID’s advanced Stasys design philosophy. It features two custom-developed 18-inch low-frequency drivers with high-excursion 4-inch voice coils, delivering a combined AES power handling of 2400W and exceptional bass impact with clarity and control. To maximise performance, the 18 mm birch plywood enclosure has undergone the same advanced resonance mapping procedures applied across the Stasys low-frequency range. This process has driven material selection, internal bracing geometry and structural optimisation to minimise cabinet coloration, suppress destructive resonances and achieve maximum output from a lightweight yet highly rigid enclosure. Extensive transducer research and comparative testing underpins the Stasys 218 design, with detailed evaluation of cone materials, surround geometries, voice coil topologies and magnetic flux behaviour. These refinements ensure optimal integration with the reflex enclosure, delivering high efficiency, controlled excursion and clean low-frequency reproduction even at extreme output levels. The result is a state-of-the-art dual 18-inch subwoofer that combines advanced enclosure engineering with esoteric transducer performance and precision tuning techniques. Built for touring and permanent installations where uncompromising bass performance is required, the Stasys 218 stands as a flagship low-frequency solution from VOID Acoustics. £POA. Contact us for pricing.

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    £0.00

  • VOID Acoustics Stasys XV2 Air Dual 18-Inch Horn-Loaded Subwoofer

    VOID Acoustics Stasys XV2 Air Dual 18-Inch Horn-Loaded Subwoofer

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    The VOID Acoustics Stasys XV2 Air is a high-output, horn-loaded low-frequency enclosure engineered for large-scale sound reinforcement applications where predictable performance, reliability and extreme output are essential. As a special Air edition of the Stasys XV2 range, it combines advanced acoustic design with refined mechanical engineering to deliver powerful, controlled bass with negligible power compression, even under sustained high-load conditions. Built around a dual 18-inch horn-loaded configuration, the Stasys XV2 Air offers exceptional efficiency, improved transient response and precise phase behaviour, making it ideally suited to demanding outdoor events, touring systems and high-energy venues such as clubs and large lounges. With an AES power handling of 3200W, it provides authoritative low-frequency impact while maintaining clarity and consistency across large audiences. The enclosure is finished in a tough TourCoat polyurea coating for maximum durability on the road and features truck-pack-friendly dimensions to optimise transport and deployment. Universal location receptors support flexible system integration, while the aluminium bracing can be colour customised to add a distinctive visual identity to the system. Designed for professionals who demand both performance and predictability, the Stasys XV2 Air represents a dependable, high-performance low-frequency solution from VOID Acoustics. £POA. Contact us for pricing.

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    £0.00

  • KV2 Audio ES1.8 High Output Active-Driven Subwoofer

    KV2 Audio ES1.8 High Output Active-Driven Subwoofer

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    The KV2 Audio ES1.8 is a high-output reflex horn-loaded single 18-inch subwoofer engineered as an integral component of the ES Series sound reinforcement system. Designed to deliver tight, immediate and authoritative low-frequency extension, the ES1.8 provides exceptional impact, definition and controlled bass response for demanding live and installed applications. Optimised for use with the ES1.0 mid/high enclosure and powered via the dedicated EPAK2500 or EPAK2500R control and amplification unit, the ES1.8 forms a powerful and coherent low-frequency foundation within the ES modular platform. Its reflex horn-loaded design enhances efficiency and projection, ensuring consistent high output levels with clarity and precision. The ES1.8 is typically deployed in pairs or combined with up to two ES1.5 subwoofers, enabling scalable low-frequency reinforcement tailored to venue size and performance requirements. Engineered for safe and reliable operation at elevated SPL levels, it maintains dynamic control and definition even under sustained high-output conditions. When integrated within a complete ES system, the ES1.8 contributes to a balanced, high-performance sound reinforcement solution offering impressive depth, attack and long-term reliability. The KV2 Audio ES1.8 is priced on application and supplied to order directly from the manufacturer.

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    £0.00

  • KV2 Audio ES2.5 High Output Active-Driven Subwoofer

    KV2 Audio ES2.5 High Output Active-Driven Subwoofer

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    The KV2 Audio ES2.5 is a high-output dual 15-inch subwoofer designed for integration within the ES Series modular sound reinforcement system. Operating at 4 ohms, the ES2.5 utilises advanced twin asymmetrical acoustic chamber design to achieve exceptional speaker loading and powerful low-frequency output from a relatively compact enclosure. Engineered to reproduce low frequencies with high transient accuracy and dynamic impact, the ES2.5 delivers tight, controlled and articulate bass performance suited to demanding live sound applications. Its innovative cabinet architecture enhances efficiency while maintaining clarity and definition at elevated output levels. When paired with the ES1.0 mid/high enclosure and powered via the dedicated EPAK2500 or EPAK2500R control unit, the ES2.5 forms part of a highly dynamic and precisely aligned ES system. It can also be deployed within an expanded five-way configuration alongside VHD1.21 and VHD2.21 subwoofers, delivering extended low-frequency depth and substantial system headroom. The ES2.5 and ES2.6 variants collectively provide exceptional dynamic range, resolution and system coherence, achieving performance levels that surpass many comparable modular systems. The result is enhanced clarity, depth and impactful low-frequency reproduction across touring and installation environments. The KV2 Audio ES2.5 is priced on application and supplied to order directly from the manufacturer.

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    £0.00

  • KV2 Audio ES2.6 High Output Active-Driven Subwoofer

    KV2 Audio ES2.6 High Output Active-Driven Subwoofer

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    The KV2 Audio ES2.6 is a high-output dual 15-inch subwoofer engineered for integration within the ES Series modular sound reinforcement system. Operating at 8 ohms, the ES2.6 incorporates twin asymmetrical acoustic chamber technology to achieve exceptional speaker loading and powerful low-frequency output from a compact cabinet footprint. Designed to reproduce low frequencies with outstanding transient response and definition, the ES2.6 delivers tight, controlled and dynamic bass performance suited to demanding live sound and touring applications. Its advanced enclosure design enhances efficiency while maintaining clarity and impact at elevated SPL levels. When paired with the ES1.0 mid/high enclosure and powered via the dedicated EPAK2500 or EPAK2500R control unit, the ES2.6 forms part of a precisely aligned and highly dynamic ES system. It can also be integrated into an expanded five-way configuration alongside VHD1.21 and VHD2.21 subwoofers, extending low-frequency depth and increasing overall system headroom. Together with the ES2.5 variant, the ES2.6 contributes to one of the highest dynamic range modular systems available in its class, delivering exceptional clarity, depth and resolution for professional audio environments. The KV2 Audio ES2.6 is priced on application and supplied to order directly from the manufacturer.

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    £0.00

  • Martin Audio SX110 Subwoofer

    Martin Audio SX110 Subwoofer

    Delivery in 1-3 days

    The Martin Audio SX110 is a compact passive slimline subwoofer designed for installed sound applications where low frequency reinforcement is required without introducing a large or visually intrusive cabinet. Available in black or white, it is suitable for commercial interiors where the subwoofer needs to integrate neatly with the room design while adding greater warmth, depth and impact to the main loudspeaker system. Built around a 10" long-excursion driver with a 2" voice coil, the SX110 provides extended bass performance from a small direct-radiating enclosure. Its slimline cabinet makes it particularly useful for space-conscious installations, including placement under banquette seating, below counters, against walls or in other discreet locations where a conventional subwoofer may be too large. With 200W AES power handling and 800W peak capability, the SX110 is well suited to background and foreground music systems in restaurants, cafés, bars, hotels, retail stores, education spaces, museums, houses of worship, fitness facilities and commercial venues. It is especially useful when paired with compact full-range loudspeakers, helping smaller speakers deliver a fuller and more complete sound. The subwoofer has a frequency response of 50Hz–150Hz ±3dB, with useful low frequency extension down to 42Hz at -10dB. This allows it to add meaningful bass support to compact installed audio systems, improving music playback without requiring a physically large enclosure. The generously sized port is designed to reduce air noise, supporting clean low frequency performance in everyday commercial use. The SX110 operates as an 8Ω passive subwoofer and requires suitable amplification with active crossover and EQ processing. When used with compatible Martin Audio full-range loudspeakers, crossover and EQ can be managed through appropriate Martin Audio system controllers or amplifier presets. Correct system setup is important to ensure reliable performance and balanced integration with the main speakers. The plywood enclosure is finished in black or white textured paint and fitted with a perforated steel grille for driver protection. Rubber feet on the base help resist movement when the subwoofer is floor mounted, while 12x M8 inserts provide options for suspension using suitable hardware and professional installation methods. Measuring just 417mm x 297mm x 415mm including feet and weighing 12kg, the Martin Audio SX110 is a practical choice for commercial AV projects requiring discreet low frequency reinforcement. Its combination of compact size, premium Martin Audio performance and black or white finish options makes it well suited to high-quality installed sound systems where space, appearance and audio impact all matter.

    Delivery in 1-3 days

    £445.00

  • Martin Audio SX210 Subwoofer

    Martin Audio SX210 Subwoofer

    Delivery in 1-3 days

    The Martin Audio SX210 is a slimline passive dual 10” subwoofer designed for professional audio systems where strong low frequency performance is required from a compact and visually unobtrusive enclosure. Available in black or white, it is well suited to commercial venues, hospitality spaces, houses of worship, corporate AV environments, live music venues and compact performance areas where space and presentation are important. Using two 10” long-excursion drivers with 2” voice coils, the SX210 provides a significant step up in bass output compared with a single-driver slimline subwoofer while retaining a low-profile cabinet format. Its compact shape allows it to be positioned discreetly, stacked where appropriate or flown using the integrated M8 inserts and suitable installation hardware. With 400W AES power handling and 1600W peak capability, the SX210 delivers dependable low frequency reinforcement for background music, foreground music and compact live sound applications. The 4Ω passive design requires suitable amplification and active crossover processing, with Martin Audio recommending appropriate system controllers or amplifier presets to manage crossover and EQ functions. The SX210 has a frequency response of 50Hz–150Hz ±3dB, with useful low frequency extension down to 42Hz at -10dB. This gives it the capability to add depth, warmth and impact to compatible full-range loudspeakers, making it particularly effective in venues where music quality is a key part of the customer experience. The cabinet is constructed from birch/poplar plywood and fitted with a perforated steel grille for driver protection. Rear bar handles support practical handling, while rubber feet help resist movement when the subwoofer is floor mounted and align with cabinet recesses for stacking. At 718mm x 295mm x 465mm and 20kg, the SX210 remains compact and manageable while providing strong bass output from its dual-driver design. The Martin Audio SX210 is a strong choice for installations and portable systems requiring discreet but capable low frequency support. Its slimline form, dual-driver performance and black or white finish options make it suitable for high-quality commercial sound systems where bass impact, space efficiency and clean visual integration are all important.

    Delivery in 1-3 days

    £679.00

  • Void Acoustics Venu 208

    Void Acoustics Venu 208

    Delivery in 1-3 days

    The Void Acoustics Venu 208 is an ultra compact dual 8 inch passive subwoofer engineered to deliver controlled and musical low frequency reinforcement in installation environments where space is limited. Designed as part of the Void Venu series, it provides a discreet yet highly effective bass solution for distributed and background music systems. Developed to overcome challenging installation constraints, the Venu 208 combines compact form factor with professional acoustic performance, making it particularly well suited to modern commercial environments. Ultra Compact Dual 8 Inch Design The Venu 208 features a parallel tuned 6th order bandpass design with two high excursion 8 inch low frequency drivers, delivering efficient and controlled bass performance from a minimal footprint. Its compact enclosure allows it to be deployed in spaces where traditional subwoofers are impractical, without compromising low frequency extension. This makes it ideal for: Bars, lounges and hospitality venuesRestaurants and cafésRetail and commercial environmentsDistributed background music systems Designed for Discreet Installation A key advantage of the Venu 208 is its ability to integrate seamlessly into tight or concealed spaces. Its ultra compact dimensions enable installation under bench seating, against walls or suspended from ceilings. Installation features include: Recessed rear connection panel for flush wall placementYoke bracket mounting for wall or ceiling installationFlexible positioning in discreet locations This allows system designers to maintain clean aesthetics while still delivering effective low frequency reinforcement. Controlled Bass with Efficient Acoustic Design The bandpass enclosure design enhances efficiency and low frequency performance, delivering tight and consistent bass across a wide range of listening environments. With a frequency response of approximately 42 Hz to 120 Hz and peak output up to 125dB, the Venu 208 provides sufficient low frequency support for commercial applications without overwhelming the system. This results in: Controlled and musical bass reproductionConsistent performance at varying levelsReduced distortion in compact installations Flexible System Integration The Venu 208 is designed for integration into distributed audio systems, featuring both speakON and Phoenix connectors with link outputs for straightforward system expansion and configuration. As a passive subwoofer, it requires external amplification and DSP, allowing full flexibility in system tuning and crossover configuration. This enables: Scalable multi-zone audio systemsPrecise system optimisationSeamless integration with Void Venu series loudspeakers Robust Construction for Commercial Use Constructed from multi laminate birch plywood with a durable textured finish, the Venu 208 is built for long term reliability in demanding environments. A perforated steel grille protects the drivers, ensuring durability in public facing installations. Its robust construction ensures consistent performance across both fixed and semi permanent installations. Engineered for Distributed Audio Applications The Venu 208 is specifically developed for systems where subtle, controlled bass enhancement is required rather than high SPL dominance. It excels in environments where audio quality must complement the space rather than overpower it. Typical applications include: Hospitality venues and loungesRestaurants and cafésRetail stores and showroomsCorporate and commercial spaces A Discreet Subwoofer with Professional Performance The Void Acoustics Venu 208 delivers a strategic balance of compact design, installation flexibility and controlled low frequency output. Its ability to provide effective bass reinforcement in space constrained environments makes it a strong choice for modern commercial audio systems.

    Delivery in 1-3 days

    £699.00

  • Martin Audio SX112 Subwoofer

    Martin Audio SX112 Subwoofer

    Delivery in 1-3 days

    The Martin Audio SX112 is an ultra-compact passive subwoofer designed for installed sound systems where strong low frequency reinforcement is required from a discreet cabinet. Available in black or white, it is well suited to commercial interiors where bass performance needs to be added without using a large or visually intrusive enclosure. Built around a 12" long-excursion driver with a 3" voice coil, the SX112 provides extended low frequency performance for background music, foreground music and compact installed audio systems. Its direct-radiating design and generously sized reflex ports help deliver clean, controlled bass output, making it an effective partner for Martin Audio ADORN, CDD and other compatible full-range loudspeaker systems. With 400W AES power handling and 1600W peak capability, the SX112 provides a useful step up in output from smaller slimline subwoofers while remaining compact enough for installation in bars, restaurants, hotels, retail spaces, leisure venues, museums, houses of worship and AV environments. The 8Ω passive design requires suitable amplification with active crossover and EQ processing, typically handled through a compatible Martin Audio controller or amplifier preset. The SX112 offers a frequency response of 48Hz–150Hz ±3dB, with useful extension down to 35Hz at -10dB. This allows it to add depth and impact to music playback, improving the overall system balance and giving compact loudspeakers greater warmth and authority. Its omnidirectional low frequency dispersion makes it flexible to position within the room, subject to acoustic requirements and installation constraints. The cabinet is constructed from plywood and finished in black or white textured paint, with a perforated steel grille protecting the driver. Integrated M10 inserts provide options for suspension using suitable hardware and professional installation methods, while the compact 487mm x 390mm x 410mm cabinet size helps keep the subwoofer practical for space-conscious projects. The Martin Audio SX112 is a strong choice for commercial AV installations requiring compact but capable low frequency reinforcement. Its combination of 12” driver performance, professional build quality, black or white finish options and installation-friendly form factor makes it suitable for high-quality background and foreground music systems where bass impact and visual integration are both important.

    Delivery in 1-3 days

    £775.00

  • Martin Audio Blackline Q210

    Martin Audio Blackline Q210

    Delivery in 1-3 days

    The Martin Audio Blackline Q210 is a slimline dual 10 inch passive subwoofer engineered to deliver powerful and controlled low frequency reinforcement in both installation and portable sound environments. As part of the BlacklineQ series, it has been developed to provide high output performance from a compact and visually discreet enclosure. Designed to complement full range BlacklineQ loudspeakers, the Q210 extends system low frequency response while maintaining clarity, efficiency and installation flexibility. Dual 10 Inch High Performance Driver Configuration The Q210 features two high performance 10 inch low frequency drivers with 2 inch voice coils, delivering tight and punchy bass response across a wide range of applications. With a frequency response extending down to approximately 49Hz and peak SPL reaching up to 133dB, it provides substantial low frequency impact from a compact enclosure. This ensures: Strong and defined low frequency outputConsistent performance at high levelsBalanced integration with full range loudspeakers Slimline Design for Discreet Installation A key advantage of the Q210 is its slimline enclosure, allowing it to be deployed in environments where space is limited or visual impact must be minimised. Its compact form factor makes it suitable for: Hospitality venues and barsRetail and commercial environmentsCorporate and event spacesInstalled and portable PA systems The design supports discreet placement while still delivering impactful low frequency reinforcement. Optimised Acoustic Performance with Slot Port Design The Q210 incorporates slot loaded ports to ensure efficient airflow and reduced turbulence, resulting in clean and controlled bass reproduction. This design provides: Reduced port noise at high output levelsImproved low frequency efficiencyTight and accurate bass performance This makes it particularly effective in environments where audio clarity is critical. Flexible Installation and Deployment Options The enclosure is engineered for versatile deployment, supporting both fixed installation and portable use. It can be used vertically or horizontally, stacked or flown depending on system requirements. Key features include: M20 pole mount socket for top speaker integrationM8 flying points for suspended installationsRecessed stacking features for stable deploymentMultiple NL4 connectors for flexible signal routing This flexibility enables seamless integration into a wide range of system designs. Robust Construction for Professional Use Constructed from durable plywood with a hard wearing finish, the Q210 is built for long term reliability in demanding environments. A perforated steel grille protects the drivers while maintaining a clean and professional appearance. The enclosure design ensures both durability and consistent acoustic performance over extended use. Engineered for Installation and Live Sound Applications The Blackline Q210 is designed to perform across a broad range of professional environments, offering reliable low frequency reinforcement where space and performance must be balanced. Typical applications include: Bars, clubs and hospitality venuesLive sound and DJ systemsRetail and commercial audio installationsCorporate AV environments A Slimline Subwoofer with High Output Performance The Martin Audio Blackline Q210 delivers a strong combination of compact design, high output capability and controlled bass performance. Its ability to produce tight, musical low frequencies from a slimline enclosure makes it a highly effective solution for professional audio systems requiring both performance and installation flexibility.

    Delivery in 1-3 days

    £809.00

  • Martin Audio Blackline X115 Compact Passive Subwoofer

    Martin Audio Blackline X115 Compact Passive Subwoofer

    Delivery in 1-3 days

    The Martin Audio Blackline X115 is a compact, direct-radiator passive subwoofer engineered to extend low-frequency performance in portable and installed sound systems, particularly when paired with Blackline X Series full-range loudspeakers. It utilises a long-excursion 15-inch driver with a 3-inch voice coil housed in a bass reflex enclosure, delivering controlled, musical bass from a space-efficient cabinet. Constructed from durable plywood and finished in black textured paint, the enclosure is designed for professional use and protected by an impact-resistant perforated steel grille. Four large front ports minimise air noise at high output levels, ensuring clean and consistent low-frequency reproduction. The cabinet includes a 35mm pole-mount socket for satellite speaker mounting, two ergonomic side handles for easy handling, and rubber feet that resist movement while aligning with top-surface recesses for stable stacking. Deployment options include single use, stacked configurations or flown installation via integral M10 flying inserts, making the X115 suitable for a wide range of applications from mobile PA to fixed installations. With an 8 ohm nominal impedance and robust construction, the X115 provides a reliable and compact low-frequency solution for professional environments from Martin Audio.

    Delivery in 1-3 days

    £815.00

Passive subwoofers are designed to reproduce low frequency bass within live sound systems and require an external amplifier for operation. They enhance the overall impact of music and performance audio by delivering the deep bass that full range loudspeakers cannot produce alone.

Commonly used for DJs, live music, events and performance venues, passive subwoofers work alongside main speakers to create a fuller and more powerful sound system.

If you need assistance selecting the right passive subwoofer for your system, contact our team and we will be happy to help.

© 2026 The AV Barn, A Trading Name of Essex Sound & Light Limited.

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