Boston Acoustics RX57 Category:   » Audio. video. a photo » Car audio-video equipment » Autoacoustics Model: RX57 Manufacturer: Boston Acoustics A type       coaxial speaker Number of bands       2 Sensitivity (dB)       92 Frequency Response_2 (Hz)       58 Frequency range_1 (Hz)       20000 Description:

Car Audio Boston Acoustics RX57