"Woofer Yorkville 7524 di ricambio 15" per altoparlanti EF508, EF500P e TX4 8 Ω
EF508, EF500P, 15MB650Y, TX4 Speakers 8 Ohm. Nominal power handling: 1000 W (AES). Double silicone spider with optimized compliance. 100 mm (4 in) copper voice coil. Winding depth: 25 mm (1.0 in). Magnetic gap depth: 12 mm (0.5 in).