mcm555Buy 555-10317 - MULTICOMP PRO - PA DJ Speaker, Subwoofer, 12, 600W, 25Hz to 800Hz. Electronics offers fast quotes, same day dispatch, fast delivery, wide inventory, datasheets & technical support.Below you will find brief information for headphone amplifier 555-8480. The 555-8480 is a 4-way headphone amplifier that can be used in small studio recording, education, home theater