ACOUSTIC REPRODUCTION DEVICE

摘要

PURPOSE:To obtain the excellent frequency characteristic and the superior transient characteristic even in a unit employing a strong magnetic circuit and having a low Q0 by using positively a band below a minimum resonance frequency without being used by a conventional technology. CONSTITUTION:In the acoustic reproduction device in combination of a dynamic speaker contained in a sealed cabinet with an amplifier driving the speaker, a sound pressure level is set to a desired characteristic by using the amplifier having a frequency characteristic correcting the bands below the minimum resonance frequency caused by the speaker and the cabinet to become a desired characteristic by the sound pressure level and the signal at a band below the minimum resonance frequency is reproduced.