polk signature s50 frequency response: 33-40,000 Hz sensitivity: 89 dB 8-ohm impedance handles up to 150 watts 1" Terylene high-res dome tweeter dual 5-1/4" mica-reinforced polypropylene Dynamic Balance® cone drivers Power Port® technology for better bass response non-resonant MDF cabinet dual 5-way gold-plated binding posts anti-diffraction magnetic grilles for minimal sonic interference includes stabilizing feet 7-1/2"W x 37-7/16"H x 11-1/16"D (10-5/16"W with feet) weight: 32 lbs.นัดทดลองฟัง โทร และ Line กดเพื่อดูเบอร์โทร xxxxxx223 วีSee More