Apart from the driver materials, both the Studio 2 and Arena architectural speakers are quite the same. However, the Studio 2 series does deliver better high frequency versatility, thanks to the pivoting and level adjusting feature for the tweeter. The pivoting feature allows you to position/direct the tweeter toward the listening area. The level adjusting feature allows you to tune the high frequency (Zero to -3dB) as needed. These features are also available on select Harman Luxury Architectural speakers (Revel) as well.