Multiple-speaker
Parametric loudspeaker with improved phase characteristics
Personal multimedia speaker system
Phonetic equalizer system
Signal delaying device
Sound quality enhancement circuit for audio signals and...
Sound reproducing apparatus
Sound reproduction device
Sound signal processing apparatus and sound signal...
Sound source having a plurality of drivers operating from a virt
Speaker system including phase shift such that the composite sou
Speaker system, audio amplifier and audio system
Stereophonic reproduction system