DISCOVERY / Audio Systems & Listening
OMA Mini, what the horn makes possible.
A compact enclosure under a cast aluminium horn raises a good question about how a loudspeaker fits a room.
Image: Oswalds Mill AudioPublished 4 November 2026 · WHV
From across the room the OMA Mini looks like a cube beneath a polished funnel. The cube is fourteen inches across, according to the maker, but the complete speaker is fifty-seven inches high. The useful dimensions are the ones that determine where it stands and where you sit.
Oswalds Mill Audio pairs a horn-loaded compression driver with a woofer in a hardwood enclosure. The separate horn makes the two jobs visually easy to distinguish. It is also a useful starting point for a conversation about amplifier matching and how the speaker will behave in the room where you intend to use it.
Audition the pair with familiar recordings and an amplifier you can compare with your own. Listen quietly as well as at your preferred level. Ask the maker which drivers or other components it supports and whether a repair would go through the dealer or back to the workshop.
Evidence & sources.
- OMA Mini design and specifications (opens source in a new tab)
- Oswalds Mill Audio loudspeaker range (opens source in a new tab)
Scope of this reading
Room response, amplifier compatibility and service arrangements depend on the system and location. The photograph illustrates one finish combination.
Sources checked 4 November 2026.
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