http://forum.lowyat.net/ Tue, 09 Jun 2026 10:50:39 +0800 FeedCreator 1.7.2 http://forum.lowyat.net/topic/3929296 currently my car own Alpine cda 9807 which bulid in 3 pair of rca output with 4 volt<br /><br />i plan to change the head unit because need usb playable <br /><br />now the problem is, if i install HU that have rca output 2 volt, will it affect of my sound system or not??<br /><br />anyone please help<br /><br /><br />sound system - front alpine speaker with tweeter , rear altec lansing speaker, 12&quot; pioneer woofer, 1 alpine amp, 1 sony xplod amp. meizitang ICE Fri, 22 Apr 2016 23:28:28 +0800