ηχεία δοκιμής ήχου (10 -20000 Hz) – 30 λεπτά γραμμικού πλάτους, πλήρους εύρους, μπάσου, μέσου και πρίμου – φάσμα βίντεο και υψηλής ποιότητας ήχο.

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