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<blockquote data-quote="Ossian Ott" data-source="post: 148298" data-attributes="member: 9159">Re: 60 Degree&nbsp; DIY Mid HiIf you play bass heavy edm, thermal power rating will probably be the limiting factor as you already pointed out.The b&amp;c 12&quot; have a rms handling of 400, so if you limit them to 500w with music material(higher crest factor than sine wave) I think you are on the safe side. I could not find the minimum impedance figure for the 16 ohm but it&#039;s 6.2 ohm for the 8 ohm model, let&#039;s estimate 14,2 on the 16 ohm model.&nbsp;14,2/2 (2 drivers in parallell)=7,184(volts)×84=70567056/7,1=993 Watts at Zmin993/2 ~500w for each driverOtoh I think the cabinet design has to be included in the total zmin measurement as it changes the parameters of the impedance IIRC.I would limit to 80-84 ohms if I were in your situation (given the total box zmin won&#039;t differ to much from driver zmin and my estimation of the 16 ohm driver is right)Can&#039;t help on the bms these different power figures confuse me.I built keystones aswell! Will be interesting to hear your findings combining them with the diy.. my initial impression with the 18sw115-8 is very good</blockquote>

[QUOTE="Ossian Ott, post: 148298, member: 9159"] Re: 60 Degree DIY Mid Hi If you play bass heavy edm, thermal power rating will probably be the limiting factor as you already pointed out. The b&c 12" have a rms handling of 400, so if you limit them to 500w with music material(higher crest factor than sine wave) I think you are on the safe side. I could not find the minimum impedance figure for the 16 ohm but it's 6.2 ohm for the 8 ohm model, let's estimate 14,2 on the 16 ohm model. 14,2/2 (2 drivers in parallell)=7,1 84(volts)×84=7056 7056/7,1=993 Watts at Zmin 993/2 ~500w for each driver Otoh I think the cabinet design has to be included in the total zmin measurement as it changes the parameters of the impedance IIRC. I would limit to 80-84 ohms if I were in your situation (given the total box zmin won't differ to much from driver zmin and my estimation of the 16 ohm driver is right) Can't help on the bms these different power figures confuse me. I built keystones aswell! Will be interesting to hear your findings combining them with the diy.. my initial impression with the 18sw115-8 is very good [/QUOTE]

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