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<blockquote data-quote="headless" data-source="post: 1512103" data-attributes="member: 566363">Hey guys.&nbsp; I&#039;m going to be setting up a new HU this weekend and will be re-setting all gains in my system (also new speakers).&nbsp; I&#039;ve got a bit of a dilemma, though -- my mids/highs amplifier is easy, it&#039;s 2x140rms into 4ohms bridged.&nbsp; sqrt(140*4) = 23.66v to each speaker.&nbsp; The sub amp is a bit trickier; it&#039;s an old Punch 60DSM which is notoriously underrated.&nbsp; I can&#039;t really go off of 30w rms @ 4ohm, because the thing pushes 200+w.Any ideas on how to get this set up not clipping, without an oscilloscope?I was thinking i could burn 2 test tone tracks -- one at 0DBFS, and another at perhaps -1 or -2 DBFS.&nbsp; Play tone @ full 0DBFS, measure voltage at output poles to speakers on amp. Play tone -2dfbs.&nbsp; Measure voltage.&nbsp; If voltage is the same for both tones, it got clipped. If voltage for tone 1 is greater than tone 2, no clipping. Is this the right idea?&nbsp; Sorry if i just showed i am completely clueless //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</blockquote>

[QUOTE="headless, post: 1512103, member: 566363"] Hey guys. I'm going to be setting up a new HU this weekend and will be re-setting all gains in my system (also new speakers). I've got a bit of a dilemma, though -- my mids/highs amplifier is easy, it's 2x140rms into 4ohms bridged. sqrt(140*4) = 23.66v to each speaker. The sub amp is a bit trickier; it's an old Punch 60DSM which is notoriously underrated. I can't really go off of 30w rms @ 4ohm, because the thing pushes 200+w. Any ideas on how to get this set up not clipping, without an oscilloscope? [B]I was thinking [/B]i could burn 2 test tone tracks -- one at 0DBFS, and another at perhaps -1 or -2 DBFS. Play tone @ full 0DBFS, measure voltage at output poles to speakers on amp. Play tone -2dfbs. Measure voltage. If voltage is the same for both tones, it got clipped. If voltage for tone 1 is greater than tone 2, no clipping. Is this the right idea? Sorry if i just showed i am completely clueless [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] [/QUOTE]

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