Subwoofers

Norwegian-designed sealed subwoofer with dual 13.8-inch long-throw drivers and Arendal's Avalanche 1200 IQ DSP amplifier delivering 1200W RMS. Sold factory-direct with app-based control and multiple listening modes.

The Trio G3 is Avantgarde Acoustic's German horn-loaded flagship loudspeaker system, built around three redesigned spherical-horn modules — tweeter, midrange, and midbass — mounted on a substantial tripod base with no conventional cabinet (source: [The Audio Beat](https://www.theaudiobeat.com/equipment/avantgarde_trio_g3.htm)). It can be run fully passively with an external amplifier, or converted to an active configuration using Avantgarde's proprietary iTron current-drive amplification, which integrates a three-channel amplifier and active crossover directly into each horn array; the system is typically paired with Avantgarde's SpaceHorn horn-loaded subwoofers for full-range bass extension (source: [The Audio Beat](https://www.theaudiobeat.com/equipment/avantgarde_trio_g3.htm), [Auditorium](https://www.auditorium.de/en/speakers/speakers/floorstanding-speakers/avantgarde-acoustic-trio-g3-active-3-way-horn-system-with-itron)).

The Børresen BM3 is a low-frequency bass module made and designed in Denmark by Danish loudspeaker manufacturer Børresen. It uses folded-dipole architecture with four 8-inch Børresen DCC8 Neo drivers in a boxer-style opposing configuration. The module includes a 2 × 300-watt Aavik UMAC amplifier based on Pascal switching technology and a fully analog adjustable low-pass crossover operating from 30 to 80 Hz, with a high-gloss black finish and carbon detailing.

The DB4S is the smaller of Bowers & Wilkins' two-model DB Series subwoofer line, built around a single variable-thickness Aerofoil-cone driver in a sealed, acoustic-suspension cabinet driven by a 1,000-watt Class D Hypex amplifier (source: [Bowers & Wilkins](https://www.bowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_europe_shared/default/dw2e593228/downloads/db4s-info-sheet.pdf), [Crutchfield](https://www.crutchfield.com/p_749DB4SGB/Bowers-Wilkins-DB4S-Gloss-Black.html)). It includes a digital preamplifier with Dynamic EQ and is set up and controlled via the B&W DB Subwoofers smartphone app over Bluetooth LE, with no rear-panel manual controls (source: [Bowers & Wilkins](https://www.bowerswilkins.com/en-us/product/subwoofers/db-series/db4s/150211.html), [Crutchfield](https://www.crutchfield.com/p_749DB4SGB/Bowers-Wilkins-DB4S-Gloss-Black.html)).

The Dutch & Dutch 8c Studio is a three-way speaker intended for high-end home hi-fi and as a main monitor in recording and mastering studios. It uses two 8-inch high-excursion subwoofers, an 8-inch mid-range driver, and a 1-inch alloy dome tweeter, with sealed LF and passive-cardioid MF enclosures. Amplifier power is rated at 500 W for LF, 250 W for MF, and 250 W for HF; frequency response is 30 Hz–20 kHz ±1 dB, with dimensions of 485 × 270 × 380 mm and a weight of 26 kg.

The SIRA L-1 is a wireless subwoofer in the EC Living range, made in Norway; the page does not explicitly name its manufacturer. It is totally wireless and WiSA Certified, and can connect with other WiSA Certified products through an Axiim Link Transmitter.

The Focal 100 IWSUB8 is a passive bass-reflex in-wall subwoofer made by Focal for installation in walls and partitions using the 16-inch on-center mounting standard, with 40 cm spacing between studs. It has an 86 mm mounting depth and a paintable magnetic grille. Its cone uses Focal’s Polyglass construction, applying fine glass microbeads to a cellulose pulp cone; the product is designed to pair with the separately available 100 IWSUB8 amplifier.

The Focal 1000 IWSUB Utopia is an in-wall passive closed subwoofer manufactured by Focal. It uses three 16.5 cm bass drivers with Focal’s “W” sandwich cone, constructed from two glass sheets surrounding a central foam body. The impedance of each loudspeaker can be selected according to the number of associated products, with up to 16 IWSUB Utopia units connectable via supplied Speakon cables.

The Focal Bomba BP20 is an active subwoofer box with a 20 cm subwoofer and a built-in 300-watt Class D amplifier. It uses a woven glass-fibre cone with bandpass technology and Focal’s DFS® (Dual Fiberglass Structure) membrane, made from two glass fibres braided at 90° and coated with polyurethane for waterproofing. High- and low-level inputs allow connection to an original car radio or an installed audio system.

The On Wall 1000 IWSUB Utopia Frame is an audio-product frame made by Focal. The provided page content does not specify its technical specifications, materials, or topology.

The Focal Cinema SUB is a subwoofer for multichannel home-cinema systems, incorporating two 13-inch woofers derived from Focal’s professional-range Sub12 subwoofer. It uses Focal’s “W” sandwich cone, constructed from two glass sheets surrounding a central foam body, and supports wall or in-wall mounting as well as horizontal or vertical placement.

The Cub Evo is a subwoofer manufactured by Focal for multi-channel home-cinema systems. It uses a 200 W Class D amplifier and includes crossover, phase inversion, automatic power on/off, and an LFE input; its construction features an anti-vibration stand and a streamlined port.

Dôme Flax is a compact loudspeaker made by Focal, measuring 14 cm in diameter and designed for shelf placement or wall- and ceiling-mounting. It uses a patented Flax cone made from French flax fiber between two thin fiberglass sheets. The speaker includes an inverted-dome aluminum/magnesium tweeter and is compatible with Focal’s Sub Air subwoofer in 5.1 or 2.1 systems.

The Focal ES 100 KE is a 10 cm two-way component car-audio kit manufactured by Focal. Its woofer uses a K2 sandwich cone comprising an ultra-light foam core between aramid-fiber and glass-fiber layers, with a progressive spider and TMD suspension. The TKME inverted-dome tweeter has an “M” profile, an aluminum support, and an IAL2 push-pull motor, extending the frequency response to 22 kHz; the kit includes a compact crossover.

The Focal ES 165 K2E is a 2-way, 16.5 cm component speaker kit made by Focal. It uses a K2 sandwich membrane consisting of an ultra-light foam core between aramid-fiber and glass-fiber layers, along with two TKME inverted-dome tweeters featuring an “M” profile in aramid fiber and IAL2 push-pull motors. The kit includes bi-amplifiable audiophile crossovers with optimized components, and the tweeters can be installed in their original position, flush-mounted, or on an inclined support.

The Focal ES 165 K2S is a 2-way component kit with 16.5 cm speakers. It uses a K2 aramid-fibre sandwich cone with an ultra-light foam core, aramid-fibre layer and glass-fibre layer, plus TKME inverted-dome “M” profile aramid-fibre tweeters on aluminium supports. The tweeters use IAL2 push-pull motors, extend frequency response to 22 kHz, and are paired with bi-amplifiable crossovers; the speakers also feature progressive spiders and TMD suspension.

The Focal 165 AS is a 2-way component car-audio kit with 16.5 cm woofers and aluminum inverted-dome tweeters. The woofers use waterproof DFS® (Dual Fiberglass Structure) membranes made from two glass fibers braided at 90° with a polyurethane coating, and feature a central ogive for midrange distribution; the kit also includes a three-position tweeter-level control and multiple tweeter mounting accessories.

The Focal ES 165 KX2E is a 2-way, 16.5 cm car-audio component kit manufactured by Focal. It uses a K2 sandwich cone with an ultra-light foam core between aramid-fiber and glass-fiber layers, plus a TKME “M”-profile tweeter on an aluminum support with an IAL2 push-pull motor extending response to 22 kHz. The kit includes bi-amplifiable optimized crossovers and incorporates TMD suspension, a progressive-profile spider, an aluminum frame, and an optimized coil-ventilation system.

The Focal ES 165 KX3E is a three-way car-audio component kit manufactured by Focal, comprising FRAK tweeters, midrange drivers, and woofers. Its technical features include K2 sandwich membranes made from an ultra-light foam core between aramid- and glass-fiber layers, TMD suspension, rigid non-magnetic aluminum frames, optimized crossovers, and TKME “M”-profile tweeters with IAL2 push-pull motors and frequency response extending to 22 kHz.

The I Ybus is an audio-control product from Focal designed to optimize control of two iBus units. The page does not provide technical specifications, materials, or topology details.

The Focal ISUB Active is a bass-reflex amplified subwoofer manufactured by Focal for vehicle audio systems, incorporating an 8-inch subwoofer with an integrated filter and supplied Plug & Play ISO cables. It uses a ferrite motor, has a 4 Ω nominal impedance, 130 W RMS nominal power, 260 W maximum power, and a stated frequency response of 45 Hz–150 kHz; its configurable crossover ranges are 20–50 Hz for high-pass and 50–180 Hz for low-pass.

The Focal ISUB Active 2.1 is an ultracompact 20 cm (8-inch) amplified subwoofer with a two-channel amplifier and integrated filtering. It uses a ferrite motor, has a 4 Ω nominal impedance, 130 W RMS nominal power, 260 W maximum power, and a stated frequency response of 45 Hz–150 kHz; its adjustable filters provide a high-pass crossover from 20–50 Hz and a low-pass crossover from 50–180 Hz.

The Focal ISUB BMW2 is a 2-ohm subwoofer designed for Focal Inside vehicle audio systems. It uses a Polyglass membrane made by applying fine glass microbeads to a cellulose-pulp cone; the resulting rigidity index is stated to be almost 10 times higher than that of polypropylene.