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DREIECK SOUND is the audio division of Dreieck GmbH, a German glass furniture manufacturer founded over 30 years ago in Hennef, near Cologne. The company leveraged its expertise in glass design to create revolutionary high-end speakers, partnering with Perfect 8 Technologies to develop the CUBE S series. Based at Marie-Curie-Straße 2, 53773 Hennef, DREIECK proved glass could be an ideal acoustic material through innovative engineering. Their speakers achieve exceptional specifications: frequency range below 16Hz to over 30kHz, with distortion under 0.3% at 96dB. The unique glass enclosures eliminate vibrations and cavity resonances, featuring force-coupled bass/midrange drivers decoupled from the enclosure. DREIECK SOUND represents German precision engineering combined with aesthetic glass design, creating visually striking speakers that perform at audiophile levels while offering free delivery across Germany, Austria, Switzerland, and Benelux regions.