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<blockquote data-quote="keep_hope_alive" data-source="post: 7637463" data-attributes="member: 576029">almost all modern music is fully pegged at 0dB for most of the song.&nbsp; it&#039;s called &quot;equal-loudness mixing&quot; and it plagues modern recordings.&nbsp; been this way for about 15 years now.the other reason you got a sudden jump is because you were clipping.&nbsp; the HU may not clip at 14.4VDC supply but can clip at 12VDC supply.&nbsp; was the car running or off during your measurements.&nbsp; clipping increases the RMS value read by the DMM.it&#039;s a moot point anyway - you won&#039;t listen to music at max volume and the speakers don&#039;t need that much power to satisfy you.&nbsp; you are just setting gains to ensure you don&#039;t clip, but now listen to the system and i doubt you&#039;ll ever go over VOL 60...the point of the DMM setting routine is if you have an amp that is smaller than your expectations, and you want to ensure you don&#039;t clip when trying to get the most out of it.&nbsp; and yes, a scope is a better tool...&nbsp; or the DD-1.</blockquote>

[QUOTE="keep_hope_alive, post: 7637463, member: 576029"] almost all modern music is fully pegged at 0dB for most of the song. it's called "equal-loudness mixing" and it plagues modern recordings. been this way for about 15 years now. the other reason you got a sudden jump is because you were clipping. the HU may not clip at 14.4VDC supply but can clip at 12VDC supply. was the car running or off during your measurements. clipping increases the RMS value read by the DMM. it's a moot point anyway - you won't listen to music at max volume and the speakers don't need that much power to satisfy you. you are just setting gains to ensure you don't clip, but now listen to the system and i doubt you'll ever go over VOL 60... the point of the DMM setting routine is if you have an amp that is smaller than your expectations, and you want to ensure you don't clip when trying to get the most out of it. and yes, a scope is a better tool... or the DD-1. [/QUOTE]

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