Sigtronics SCI-S4 Stereo Crew Isolate 4 and 6 Place Panel Mount Intercoms Dual Music Inputs. Pilot / Co-pilot and crew can choose their own music. Automatically mutes with incoming traffic or when intercom is used. Dual Squelch Indicator Lights. You know instantly which position to adjust. No more guess work. Dual Volume Controls. You control the volume of both front and back seats. We've added the extra volume you wanted. Dual Squelch Controls. Set the squelch of the front and back seats from one position. Crew/Pilot Isolate. Talk with your Co-Pilot while your passengers enjoy their own conversation. Isolate to talk to ATC if you like. Small Size. You will only need a 1" by 2.5" panel space for this powerful intercom. The SCI-S4 is designed to make upgrading from a SPA-400 / 600 easy. 5-Year Warranty. Not that you'll ever need it. Our quality and dependability is the standard by which all are judged. RFI and EMI Immune. We engineer all of our products the right way. No need for expensive shielded cable to make up for poor design. Pre-Wired Harness. Easy to install. Includes all hardware, including new jacks, needed for installation. Soft Touch Knobs. Larger, easier to read and control.
