The iconic British brand has a very successful solutions to faithfully reproduce low tones with PC4uMusic configurations
"Uni-Core® might seem a wonderfully simple idea, but the engineering challenge involved in getting an uncompromised performance is immense." - November 2022, What Hi-Fi?
Uni-Core made its debut in KEF’s tiny KC62 subwoofer which uses two drivers, which sit on opposite sides of the box. However, the sub’s enclosure is so small that the company couldn’t fit two conventional drivers back-to-back inside the box; there simply isn’t the space to accommodate both the driver chassis and their motor systems. This KEF solution will also remind you that you can place a subwoofer with a built-in PC under the TV and connect a wireless mouse and keyboard to it, as well as provide an app on your smartphone.
The concept had been partially tested a few years earlier, when a PA system from Box Electronics was connected to a PC to play to play digital broadcasts.The subwoofer had built-in amplifiers to drive a pair of passive satellites. Back then, USB-C wasn't yet available to power the active satellites, and furthermore, the satellite amplifiers operated in class AB with a power output of 2 x 100 W RMS. Powering this via USB-C isn't an optimal solution. Box Electronics was a renowned Polish manufacturer of equipment for musicians. It also offered a wide selection of audiovisual equipment, including projectors, amplifiers, mixers, loudspeakers, wireless microphones, and conference systems. These remain characterized by high sound quality and reliability, ideal for stage, conference, and other applications.
A 2.1 system from Box Elektrinics with three Celestion woofers was to be presented alongside PC4uMusic configurations at a special booth in the AmberExpo trade center. The subwoofer with a screen was to be placed beneath a wall-mounted, uncased PC. On one side of the satellite was to be a PC in an elegant wooden case, reminiscent of high-end audio equipment, and on the other in a transparent plexiglass case, showcasing the latest motherboard with a galvanically separated audio section and its high-quality components. However, a courier's logistical error meant that a pair of active Hi-Fi speakers and a standard exhibitor cabinet were used instead. These speakers, mounted on stands prepared for the satellites, looked ridiculous, so they were covered with a thick cloth. The planned design was intended to emphasize the message that music is not an office application, which the cabinet clearly hindered.
Already at the end of the 1970s, the Swedish ACE-Bass concept with 2 standard woofers appeared and later had a groundbreaking significance for the emergence of subwoofer offers. ACE-Bass was invented by Karl Erik Stahl and presented in New York at the 61st Audio Engineering Society Convention.
Later, a subwoofer with 4 drivers and many other very interesting solutions appeared, but the Swedish designs assumed the use of a speaker with a bass-reflex enclosure.
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