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Posted

Over excursion due to a)tuning with a -10 tone and wiring to .5ohm B) playing boosted music after tuning your system with the -10 tone.

That sub also may have a loading issue since it is closer to the port. Did you ever notice it moving more than the other sub?

Solution to this would be 1 extra spider on the recone for that sub and shrinking down your box and port area a bit.

Well the subs where parallel in the box but series on the out side to get a final load of 1ohm. Also I never payed to much attention to see if one was moving more than the other.

Posted

It's not clipping.... You had your subsonic filter set wrong. What is your box tuned to?

I would assume there was some kinda clipping. With decaf it should of been tuned no lower than a -5dB tone. O well lol. also the subsonic cut was at 27hz. Too low maybe? I never heard the subs bottom out. Only time was when I forgot to set the subsonic and hit a 23hz note in a song and I instantly turned it down. That was about 5 months ago though.

Posted

very nice box did u build it?

Yeah I built it myself with just the help of the torres calculator and some mathematical equations to figure in the extra displacement from the braces and what not.

Posted

3ft3 net seems good, but I would use about 14in2 of port with that low of a tuning. I would also make sure to tune with a -5 tone next time.

Posted

3ft3 net seems good, but I would use about 14in2 of port with that low of a tuning. I would also make sure to tune with a -5 tone next time.

I'm assuming the lower port area would help per say add resistance to the sub to keep it from over excusion?

Posted

Also if I recone one with extra spiders I may as well do the other. One question though. Say I switch to a 2ohm coil to get a final load of .5 on my crescendo 3500 would these be able to survive that? Even with the extra spiders and cutting down on port area?

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