analog

I remember seeing these in endless adverts and in more than a few IASCA cars back in the day. Often considered, never bought. Since they predated consumer-grade DSP by a fair bit, how were these analog wonder-devices "analyzing" the music, then adding "missing" bass back in, in real-time? Given...

Jensen vm9234 hd will not capture digital hd stations when it is raining. Just got this thing. Am I crazy or am I the only one who doesn't know this. It has been very frustrating trying to find a decent double din. Had a pioneer 7200 single din that played nicely but I returned it because it...