k31th less WHY; more WOT Site Developer 29,130 Member For: 16y 9m 1d Gender: Male Location: Melbourne Posted 09/03/15 11:07 AM Share Posted 09/03/15 11:07 AM not a fan of slope adjusters on head units... they tend to boost/lower certain parts of songs you thought already sounded awesome... just my experience though (and not with an alpine HU crossover like your one). Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 19d Gender: Male Location: Perth Posted 09/03/15 11:10 AM Share Posted 09/03/15 11:10 AM Are we both talk about the attenuation slope on the cross over? Edit- amp is 12db per octave but HU is adjustable from 1db to 24. Seems to fill the holes better. 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,130 Member For: 16y 9m 1d Gender: Male Location: Melbourne Posted 09/03/15 11:12 AM Share Posted 09/03/15 11:12 AM (edited) Either attenuation or frequency slopes tend to do the same thing, so I'd say so hahaEDIT: this thing (page 23, top left) ->http://www.alpine.com.au/files/2013OwnersManuals/CDE-178BT_EN.pdfEDIT again: just go with whatever you think sounds better, as it'll be primarily your ears enjoying it. Edited 09/03/15 11:15 AM by k31th Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 19d Gender: Male Location: Perth Posted 09/03/15 11:16 AM Share Posted 09/03/15 11:16 AM Surprisingly the amp seems to rub cooler using the hu crossovers? Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,130 Member For: 16y 9m 1d Gender: Male Location: Melbourne Posted 09/03/15 11:18 AM Share Posted 09/03/15 11:18 AM judging by touch or by temperature gauge? lo Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 19d Gender: Male Location: Perth Posted 09/03/15 11:27 AM Share Posted 09/03/15 11:27 AM I have a skin graft on my left hand that's quite an accurate temp gauge. Anything about aprox 60 deg is painful so I can tell you it's less than that using the hu crossovers. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,130 Member For: 16y 9m 1d Gender: Male Location: Melbourne Posted 09/03/15 11:29 AM Share Posted 09/03/15 11:29 AM still not helpful if it's not painful using the amp crossovers hahaso heat from an amplifier is a product of producing more amps or handling large variants of input frequency controls... using the crossovers on the amp would take away some of the processing and would then by definition run cooler than any "full" signal coming from the HU... but of course that's only a theory, much like your results Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 19d Gender: Male Location: Perth Posted 09/03/15 11:32 AM Share Posted 09/03/15 11:32 AM It's was with the amp crossovers.... Hence me bringing it up. Why would the amp need to work harder to process a signal that's already been processed by the hu? In my mind it would be doing less work? 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,130 Member For: 16y 9m 1d Gender: Male Location: Melbourne Posted 09/03/15 11:39 AM Share Posted 09/03/15 11:39 AM amps do rudimentary processing at best... for the most part they just amplify Link to comment Share on other sites More sharing options...
Lennox Member 2,586 Member For: 11y 10m 16d Gender: Male Location: Perth Posted 09/03/15 11:51 AM Share Posted 09/03/15 11:51 AM Probably running cooler cos you have a steeper attenuation curve with the head unit crossover than on the amp 2 Link to comment Share on other sites More sharing options...
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