To protect them from damage, the DSP applies a high-pass filter at 200Hz and depending on user-controllable DSP settings, may apply a low-pass filter at 4kHz.
DEAD BANG 1989 DRIVERS
Not surprisingly, the Beolab 28’s “full-range” drivers don’t cover the full audioband. The woofer and full-range drivers have ferrite magnets the tweeter has a neodymium magnet. Each speaker contains a 6.5″ paper-cone woofer powered by a 225W class-D amp three 3″ paper-cone “full-range” drivers, each with its own 100W class-D amp and a 1″ textile-dome tweeter, also powered by a 100W class-D amp.
DEAD BANG 1989 DRIVER
The Beolab 28 is a fully active system, with separate amplifiers for each driver and a crossover implemented by a digital signal processor. A preset can be a favorite internet radio station or a Spotify playlist, and can be programmed using the Bang & Olufsen app, which is available for iOS and Android. Using touch controls, you can adjust volume, pause and resume playback, skip tracks forward or backward, enable or disable Bluetooth, and select one of four presets. On the top of each speaker is a glass control panel with a proximity sensor, so that it lights up when you approach it. The versions with slatted wood outer covers sell for $16,500/pair (all prices in USD) those with fabric outer covers are $14,750/pair. For the upper section containing the full-range drivers, they can choose a slatted Light Oak outer cover with a fabric inner cover in Grey a slatted Smoked Oak outer cover with a darker, Grey Mélange fabric inner cover a slatted Walnut outer cover with Grey Mélange inner cover Grey Mélange fabric outer and inner covers or the lighter Grey fabric inner and outer covers. For the base and electronics sections, they can choose from a range of anodized finishes: Natural, Bronze Tone, or Black Anthracite. Purchasers can customize the Beolab 28 to suit their décor. It hardly needs saying that the Light Oak Beolabs looked drop-dead gorgeous in my living room-the materials, design, and craftsmanship were all impeccable. The aluminum of the bass module and the electronics section of the main module was in the Natural finish. The Light Oak floorstanding version, which I tested, had slatted wood outer covers and a gray fabric inner cover. The main difference between the wall-mounted and floorstanding versions is the backbone that attaches the woofer module to the main module-the drivers and electronics are the same. With the wall-mounted version, the base attaches to the wall, with the main module rising perpendicularly from it, so the woofer fires backward. With the floorstanding version, the base sits on the floor and the woofer fires downward. The base of the speaker is shaped like a truncated cone, with a gap around the lower perimeter that allows sound from the woofer to vent into the room. The curtains open as soon as music begins playing, and shut again when the music stops. On the front of the upper section is a two-piece arced outer cover-or “curtains,” as B&O calls this element-of slatted wood on some models, woven fabric on others. The electronics are in a capsule-shaped aluminum section at the bottom of the column, and the drivers are behind a fabric cover in the top section. Both versions weigh 41 pounds.įloating above the aluminum woofer module is a tall, narrow column containing the electronics, full-range drivers, and tweeter. The wall-mounted version measures 8.3″D × 10″W × 55.1″H. The Beolab also has clever DSP functions to help overcome problems in real-world listening rooms and to adjust output for different listening situations and a network streamer that supports Apple AirPlay 2, Google Chromecast, Spotify Connect, and UPnP/DLNA.įor my review, Bang & Olufsen supplied the floorstanding version of the Beolab 28, which has a circular footprint, 10″ in diameter, and is 54″ tall. Specified frequency range is 27Hz–23kHz (no deviation given), and maximum SPL is 110dB (per pair). The Beolab 28 is a three-way design-a 6.5″ woofer, three 3″ full-range drivers, and a 1″ textile-dome tweeter-with a total of 625W of class-D amplification per speaker. The engineering behind the speaker is hardly less impressive. The speakers can be placed on the floor or mounted on the wall. When you start playing music, cloth or slatted-wood “curtains” on the front of each speaker open, and the concert begins. A column-shaped module appears to float in the air above an aluminum base that houses the woofer. The new Beolab 28 active loudspeaker is a case in point. Formed in 1925, B&O started offering “convenient, lifestyle-oriented hi-fi” components not long after the word “lifestyle” had been coined.īang & Olufsen has always been acclaimed for its creative industrial design. Is there an audio manufacturer whose products exemplify Simplifi’d hi-fi more than Denmark’s Bang & Olufsen? I doubt it.
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