作為該系列的旗艦產品，Borea BR09 是一款以最純粹的高保真傳統設計的落地式音箱。在它的 1.1 米高處，它包含了技術和 TRIANGLE 專有技術。

它的三分頻設計為每個頻率範圍分配了一個換能器，以實現精確的人聲再現和低頻深度，同時保持寬廣的聲場。

BR09 提供類似於最高端系統的物理組成。它的三個 16 厘米低音驅動器在大型“低音反射”外殼中運行，從而使揚聲器能夠降低至 35Hz。

由於其提供較低的頻率和高功率處理能力，這款揚聲器非常適合更大的房間（超過 30 平方米）。

The flagship of the range, the Borea BR09 is a floorstander designed in the purest hi-fi tradition. In it’s 1.1 meters height, it comprises of technology and TRIANGLE know-how.

Its three-way design allocates a transducer to each frequency range for a precise vocal reproduction and depth at low frequency, whilst maintaining a wide soundstage.

The BR09 provides a physical make up similar to that of the most high-end systems. Its three 16cm bass drivers operate in a large “bass-reflex” enclosure, thus enabling the speaker to go down to 35Hz.

Thanks to its delivery of lower frequencies and its high-power handling, this speaker is perfectly suited to larger rooms (more than 30m2).