A series of acoustic systems THE REFERENCE from the company Kef. REFERENCE 5 - 1397 x 349 x 470 mm REFERENCE 3 - 1202 x 349 x 470 mm REFERENCE 1 - 440 x 205 x 430 mm REFERENCE 2c - 205 x 630 x 325 mm REFERENCE 8b - 398 x 365 x 429 mm There are 5 types of finishes in the scene - piano black, matte walnut, polished rosewood, blue on snow-white, copper on black aluminum.