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  #1  
Old 09-11-2012, 12:44 PM
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Default crescendo bc5500d clamp

Original Thread:
i have a crescendo bc5500d running .5 ohm on two crossfire xsv2 18s gain on amp is 1/8 no bass boost all HU settings are on lowest setting
i decided to clamp the amp to see what it was putting out
i used a UEI DM383B digital multimeter to measure ac voltage
and a craftsmen 400 amp DC/AC clamp meter model 82369

starting voltage 14.5 four grp27 c and d high rate max batts 92ah each
ending voltage was 13.8

using a 40hz sine wave all i had. i burped for a few seconds letting meters stabilize. 80.00 ac volts and 39.4 ac amps

total of 3152 wrms reactive ohm load of 2.03 ohms

i know these arent fluke meters but it still gives a decent idea of what im getting out of my amp
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Last edited by yotabass1; 09-11-2012 at 12:55 PM.
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Old 09-11-2012, 12:45 PM
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doing well over rated at 2 ohms
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Old 09-11-2012, 12:52 PM
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yup sure is im happy with it
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Old 09-11-2012, 01:15 PM
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Did u scope/dd1 it?
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Old 09-11-2012, 01:30 PM
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nope dont have access to one but its on lowest bass setting -8 on hu and no bass boost 1/8 gain
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2014 Chevy Silverado lifted 9 inches
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Nations dual alternator bracket dc power 370 alt, 3 Fi SP4v2 18s,big ass 16v stable amp , JY 45ah 16v Lithium, JY ofc 1/0, fiberglass doors, 3 krome ka10s 3 mclaren mlt8 tweeters. 2 soundigital sd2000.1 evos on mids mclaren 600.2 on tweeters. Pioneer 80prs
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Old 09-11-2012, 01:33 PM
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Hella rise! But how did you set the gain? Normally most gains I set end up in the 10-11 oclock range.
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I think it's probably because that sub is not moving enough to allow it to cool.. Id turn the gain up a bit so it moves more for cooling reasons.. That's why it's hard on subs to be underpowered..
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Old 09-11-2012, 01:37 PM
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i just set it to 1/8 its loud the way i have it. im gonna hopefully dd-1 it when i get access to one.
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Old 09-14-2012, 02:41 PM
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Damn, with those settings... Gotta be some clean power going on over there.
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Old 09-16-2012, 10:29 PM
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yea i can play pretty much any song without getting the subs smelly they get a little warm. im talking super low slowed songs.
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Old 11-18-2012, 10:53 PM
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wow man crescendos really out do there rated power ive got a bc2k and clamped a staring 0.5 ..rise i was at 1.35 and it was doing 2100+watts and its rated 2250 at 1ohm so at 1ohm i bet it would do more
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