PURPOSE: To prevent an erroneous inspection due to vibration and to inspect a speaker automatically and in short time.

CONSTITUTION: An index table 13 is arranged adjacently to a speaker manufacturing line and plural pallets 14 are arranged on the line so that they may rotate. At each stop location of the pallets, the delivery and receipt of a speaker, a terminal positioning and inspection are performed. At the inspection location, an upper inspection box 2 and a lower inspection box 1 raising the pallets 14 on which the speaker is mounted by holding them in a closed state from the up and down directions. The upper inspection box 2 is provided with a contact probe and a speaker press means outputting signals for inspection and coming into contact with a speaker terminal. The lower inspection box 1 is provided with a microphone 19 for inspection.