
Small but mighty: the U12 is built for precision in smaller spaces.
Rather than replacing an existing line, UNO is positioned as a clean-sheet platform designed to provide integrators with a consistent, low-frequency foundation that can scale across different room sizes and installation types. The range spans five models, U12, U15, U18, U21 and U24. Certainly, names that are refreshingly direct, if nothing else, are each designed to operate as part of a broader system rather than standalone products.
That distinction sits at the centre of the launch. Where many subwoofer ranges function as a catalogue of separate designs, Procella is framing UNO as a single performance architecture, with each model representing a different scale of the same underlying voicing. The idea is that tonal balance, transient response and decay remain consistent, whether the system is built around a single unit in a media room or deployed as a multi-sub array in a larger dedicated cinema.

The thinking comes straight from Procella’s cinema roots. These systems are designed with commercial theatres in mind, where output, control and consistency matter over long sessions. Brought into the home, the focus shifts to bass that remains stable and believable, not just attention-grabbing.
The UNO series is engineered against that brief, but adapted into enclosure formats more suited to private installations. Cabinet dimensions, placement options and system integration have all been developed with typical home cinema layouts in mind, including behind-screen positioning and baffle wall installations.

Massive attack: the U24 packs a 24-inch driver in a sealed cabinet, with peak output rated at 129.8dB.
For installers, it really comes down to predictability. Procella is pitching UNO as a system that behaves the same way from one room to the next, taking some of the guesswork out of design and setup. The result should be less correction, and more fine-tuning at the calibration stage.
Scalability is the other pillar. Smaller rooms can be served by the more compact models, while larger spaces can draw on higher-output units configured individually or in arrays. The goal, according to Procella, is to maintain the same system character regardless of room size or output level, again reflecting the company’s focus on system behaviour rather than individual component performance.

Procella frames UNO around flexibility, scalability and long-term reliability, and the specs broadly support that. The range runs from the compact U12, a sealed 12-inch sub reaching 25Hz, through to the U24, which steps up with a 24-inch driver, significantly higher power handling and peak output approaching 130dB. The UNO Series is designed to scale with the room, sitting along what Procella describes as a continuous performance curve. Pricing and availability are yet to be confirmed.
For more information visit Procella Audio
Posted in: Home Theatre | Integration
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