SUPPY CIRCUIT FOR SUPPLYING LOUDSPEAKER SIGNAL TO ACOUSTIC REPRODUCTION SYSTEM, STEREO ACOUSTIC REPRODUCTION SYSTEM AND LOUDSPEAKER

摘要

PURPOSE: To prevent the tones of reproduced sounds from being affected by the adjustment change of a signal intensity ratio if the low-pitched sounds are more satisfactorily reproduced by a speaker attached at the back of a guest room than a speaker attached in the front of the quest room. CONSTITUTION: The adjustment circuits 24 and 24a divide the audio signals Lh and Rh of high frequency into the 1st subsignals Lh1 and Rh1 and the 2nd subsignals Lh2 and Rh2 respectively. The signal intensity ratios between the 1st and 2nd subsignals are adjusted by the circuits 24 and 24a. The signal coupling means 25 and 25a connect the subsignals Lh2 and Rh2 to the audio signals L1 and R1 of low frequency. These connected signals are supplied to the speakers 4 and 5 as the speaker signals LA and RA. The subsignals Lh1 and Rh1 are supplied to the speakers 2 and 3.