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<blockquote data-quote="hispls" data-source="post: 8426134" data-attributes="member: 614752">Full range class D has been a thing for around 20 years now, but only in the last 6-7 has anything been made in the 12V arena that&#039;s worth using.There have always been small (as far as output) amps.&nbsp;&nbsp; Most lower end or entry level components or coaxials won&#039;t really handle more than 50W anyway and the difference between 40 and 50 is less than one click on your volume knob.&nbsp; The difference between 50 and 100W is probably 2 clicks on your head unit.&nbsp; I doubt people realize this, but there&#039;s always those that don&#039;t want to go crazy for space or power.&nbsp; &nbsp; There have definitely been some innovations in &quot;micro&quot; sized amps.&nbsp; Think 300W mono block or 75X4 full range amps that are the size of an old school half-din EQ.Head units have a lot of features these days but IMO they&#039;re not built to last like they were in the old days.&nbsp;&nbsp; Then again, they&#039;re priced to be disposable.&nbsp; You might have to get one with a lot of fancy features to get something that&#039;ll perform well and have 4V or higher pre-amp outs.&nbsp;&nbsp; Don&#039;t be intimidated though, most of the bells and whistles you&#039;ll never need or want to touch, but they&#039;re there because they&#039;re cheap to add for the manufacturer and add to the sticker price and allow for multiple price tiers.Otherwise, there&#039;s not much &quot;new&quot; stuff really.&nbsp;&nbsp; Conventional loudspeakers have changed little if any, the latest really big innovations (XBL^2, LMS, split gap) have been around more than a decade, and the lion&#039;s share of inexpensive amps are still using cookie cutter copies of 20+ year old circuits.</blockquote>

[QUOTE="hispls, post: 8426134, member: 614752"] Full range class D has been a thing for around 20 years now, but only in the last 6-7 has anything been made in the 12V arena that's worth using. There have always been small (as far as output) amps. Most lower end or entry level components or coaxials won't really handle more than 50W anyway and the difference between 40 and 50 is less than one click on your volume knob. The difference between 50 and 100W is probably 2 clicks on your head unit. I doubt people realize this, but there's always those that don't want to go crazy for space or power. There have definitely been some innovations in "micro" sized amps. Think 300W mono block or 75X4 full range amps that are the size of an old school half-din EQ. Head units have a lot of features these days but IMO they're not built to last like they were in the old days. Then again, they're priced to be disposable. You might have to get one with a lot of fancy features to get something that'll perform well and have 4V or higher pre-amp outs. Don't be intimidated though, most of the bells and whistles you'll never need or want to touch, but they're there because they're cheap to add for the manufacturer and add to the sticker price and allow for multiple price tiers. Otherwise, there's not much "new" stuff really. Conventional loudspeakers have changed little if any, the latest really big innovations (XBL^2, LMS, split gap) have been around more than a decade, and the lion's share of inexpensive amps are still using cookie cutter copies of 20+ year old circuits. [/QUOTE]

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