Floorstanding loudspeakers — Børresen Acoustics Børresen 05

The Børresen 05 is a serious floorstanding loudspeaker from Børresen Acoustics, built with a pair of 5-inch midrange drivers and two pairs of 8-inch woofers using a distinctive nomex-cellular-polymer-and-carbon-fibre sandwich diaphragm. The Børresen 05 represents Børresen's more ambitious current statement in floorstanding loudspeaker engineering.

Key specs that matter

Rated response spans an exceptional 25Hz to 50,000Hz within plus-or-minus 3dB. Sensitivity is notably high at 90dB into a demanding 4 ohm load, with recommended amplifier power above 50W. At 155.0 x 30.5 x 58.0cm and 75.0kg, the Børresen 05 represents a serious flagship-adjacent floorstanding commitment, with the nomex-and-carbon-fibre sandwich diaphragm giving a unique combination of low weight and high rigidity.

Sound and use context

Expect the exceptionally fast, detailed character Børresen's celebrated ribbon-tweeter technology is broadly known for, with the exceptional 25Hz bass extension combined with the notably high 90dB sensitivity representing Børresen's more accomplished current floorstanding engineering.

Pairing

The demanding 4 ohm impedance combined with the above-50W recommended power calls for a capable amplifier.

Alternatives

Børresen's own 05 Cryo Edition and 05 Silver Supreme Edition offer enhanced variants within the same broader 0-series catalogue.