http://forum.lowyat.net/ Mon, 19 Oct 2026 15:46:45 +0800 FeedCreator 1.7.2 http://forum.lowyat.net/topic/5081059 Hello all, not sure if this is the right place to ask do forgive me if it isn’t. I have a Standard Persona 2019. I was unimpressed with the audio quality so I am making it a hobby to upgrade my stereo. However there is just too many options and I need help on a few aspects.<br /><br />My situation<br />-No rear Speaker (not available on variant)<br />-Car still under warranty<br />-No sound treatment yet<br /><br />My aim:<br />-Keep the stock non-touch screen head unit<br />-Focusing on clarity and staging.<br />-Medium to slighty loud listening volume.<br /><br />What I have in my shopping cart<br />-Edifier CW810 (Sub)<br /> -8 inch Active Subwoofer<br /> -Power Input: DC 11v-16v<br /> -Has amplifier circuit<br /><br />-Focal 165 AS Access (Front)<br /> -6.5”<br /> -Component Speakers<br /> -RMS60 watts<br /> -Comes with crossovers<br /><br />-Edifier S651A<br /> -6.5”<br /> -Coaxial<br /> -Power rated at 50watts<br /><br />My concerns:<br />1. Do I need amplifiers/dsp for the four speakers?<br />2. Is the subwoofer enough to reproduce good low end?<br />3. The sub has on board amp, do I still need a monoblock?<br />4. Will any of the needed process void my warranty?<br />6. Do you know any accessories shop with good installation practice?<br />7. Anything else I need to know? whywhatwhowhy ICE Sat, 02 Jan 2021 00:22:02 +0800