Used Funktion One BR Series
Used Funktion One BR Series enclosures are a range of bass reflex cabinets designed to deliver deep, strong bass at close range across live music, club and high-performance monitoring applications. Their unique tuning results in compact yet well-defined bass performance, making them suitable for a wide variety of system configurations. Browse the second-hand Funktion One BR Series listings available right now by scrolling down.
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Funktion One BR Series specifications
| Brand | Funktion One |
| Segment | Audio |
About the Funktion One BR Series
The Funktion One BR Series comprises bass reflex enclosures built for deep, strong bass at close range in live music, club and monitoring environments. Unique tuning across the range delivers more definition than is typical from this enclosure type, allowing use across a wide variety of system configurations with plush, elastic bass and strong low-frequency extension. Individual models include the BR121 and BR221 for deep sub-bass extension, the BR218 as a multi-purpose bass enclosure with upper bass capability, the BR118 for compact near-field deep bass, and the BR115 for compact bass suited to studios and smaller applications. All enclosures are constructed from 18mm birch plywood with extremely well-braced cabinets, robust powder-coated steel grilles, integral handles and dual Speakon NL4 connectors. An optional M20 threaded pole mount is available across the range, with optional wheels on the BR121, BR221 and BR218.
Funktion One BR Series — buyer FAQs
What is the Funktion One BR Series and what is it used for?
The Funktion One BR Series is a range of bass reflex enclosures designed to deliver deep, strong bass at close range. They are built for live music, club and high-performance monitoring environments. Unique tuning across the range produces more definition than is typical from this enclosure type, making individual models suitable for sub-bass extension, near-field monitoring, multi-purpose bass duties and smaller studio applications.
Who makes the BR Series and where does it sit in their loudspeaker range?
The BR Series is made by Funktion One, a British loudspeaker manufacturer founded in 1992 and based in Dorking, Surrey. The range acts as a bass extension layer within Funktion One systems, designed to pair with other models in the range such as the F215Mk2, R2, EVO6, F88, F1201, R1, F81 and F101, broadening system configurations from small studio setups through to large club and live event installations.
What are the differences between the BR Series models?
The BR121 and BR221 focus on deep sub-bass extension from a single enclosure and suit larger Funktion One systems. The BR218 is a multi-purpose enclosure offering sub-bass performance combined with useful upper bass capability. The BR118 delivers deep near-field bass from a compact cabinet, while the BR115 is the most compact option, suited to smaller applications including studios and monitoring. All share the same core construction and connector specification.
What construction and connection features are common across the BR Series?
Every BR Series enclosure is built from 18mm birch plywood with extremely well-braced cabinets for clean bass performance, robust powder-coated steel grilles and integral handles. All models include two Speakon NL4 connectors and an optional M20 threaded pole mount. The BR121, BR221 and BR218 additionally offer an optional wheel kit, while the BR118 and BR115 are described as compact and manageable.
What should I check when buying a used Funktion One BR Series enclosure?
Check the birch plywood cabinet for any structural damage or delamination, inspect the powder-coated steel grille for dents that could indicate driver impact, and confirm both Speakon NL4 connectors are fully functional. Verify which specific model you are buying, as the BR115, BR118, BR218, BR121 and BR221 differ in size and capability. Used listings on this page show condition details; all purchases include a 21-day warranty covering major functional faults. See the buying guide at 10kused.com/used-av-equipment-guide/ for further guidance.
