Quote Originally Posted by jmat20 View Post
Hi im new to all this audio stuff so im looking for some help.

I drive a 2017 vios J it doesnt have rear speakers as stock so I had some sony coaxials put in. Now im thinking of adding a sub or getting component speakers up front. Would it be worth it? or should i invest in a better headunit first? the stock headunit has one pair of rca so i think it would be fine if i got a sub.
Since the rear are coaxials I would assume that the soundstage is now pushed at the rear. The stock VIOS speakers are just plain speakers. Technically speaking, your rears are now better sounding that those in front and might push the soundstage towards the rear.

For me, a better sounding system consist of a better soundstage plus adequate power.

I have a VIOS E and I've replaced the stock HU with a Pioneer X595BT. Immediately, the sound became better and louder. The time alignment feature provides great improvement in the sonic quality. Even listening to AM radio became enjoyable as the sound doesn't sound as diffused unlike in the stock HU. The vocals appear to be in the center (this of course, after time alignment trial and error adjustments).

My next project now is to have some deadening and the stock speakers replaced as I can now hear rattles during mid-volume.