Sony SS-NA5ES Speakers Introduction My first encounter with the SS-NA5ES was during Sony's "Feel the Air" event last year in October. I was quite impressed by the performance of the NA5ES, despite it being paired with a home theater receiver, and setup in a large acoustic space. This is certainly not your run-of-the-mill speaker. The cabinet is constructed out of Scandinavian birch wood (chosen for it's density due to the slow growth of trees there) and finished in deep brown gloss veneer by craftsmen in Japan. Under dim lighting, it appears to be almost black, and has one of the most impressive lacquer finishes I've seen on a speaker cabinet. Needless to say, the quality of the cabinetry work is top notch. The rather petite cabinet (355 mm(H) x 205mm (W) x 325mm (D)) is deceptively heavy (10 kg). The woofer is a 130 mm cone driver, while the tweeter is highly unusual. The tweeter is termed by Sony as "I-Array" and has a single 25 mm fabric dome tweete...