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42 Posts
I'm looking to build dual 18s for my living room to replace my single Bic F12. The Bic F12 cannot do the lows as well as I want, and I'd like at least 2 subs to help with nulls. My current thought is to do UM18s or Lavoce SAF 184.03 for the build on a NX6000D. I'm not super interested in the VBSS since it doesn't dig as deep as I'd like.
One thing that I'm having trouble understanding for my specific scenario is how room gain might affect my system. I understand how room gain works (I've been a car audio guy for a while now). My living room is about 13x20 with a vaulted ceiling (8ft on the low end and 12ft on the high end). One of the smaller side walls opens up to the kitchen, but the rest of the room is enclosed.
My understanding is that the open wall will almost entirely eliminate room gain. The wall that my couch sits against is essentially a 48 foot wall since it runs the length of the house, and the open wall means my space is roughly 1500 ft^2 as far as the subs would be concerned. So no gain till ~12Hz. I just didn't know if the two parallel walls of the living room would lead to any gain.
If my understanding is correct, I think I'm going to build two Johnnysubs to help reinforce the lows. Mini marty would be a bit big for my space. If I can except some amount of room gain, I would probably go sealed since I know the ULF potential is better with DSP... Or maybe Johnnys with future plans for a BOSS platform.
Either way, I'm sure I'll be smitten with any setup since I'll have ~4.5x the surface area of the BIC, so output should be substantially better.
One thing that I'm having trouble understanding for my specific scenario is how room gain might affect my system. I understand how room gain works (I've been a car audio guy for a while now). My living room is about 13x20 with a vaulted ceiling (8ft on the low end and 12ft on the high end). One of the smaller side walls opens up to the kitchen, but the rest of the room is enclosed.
My understanding is that the open wall will almost entirely eliminate room gain. The wall that my couch sits against is essentially a 48 foot wall since it runs the length of the house, and the open wall means my space is roughly 1500 ft^2 as far as the subs would be concerned. So no gain till ~12Hz. I just didn't know if the two parallel walls of the living room would lead to any gain.
If my understanding is correct, I think I'm going to build two Johnnysubs to help reinforce the lows. Mini marty would be a bit big for my space. If I can except some amount of room gain, I would probably go sealed since I know the ULF potential is better with DSP... Or maybe Johnnys with future plans for a BOSS platform.
Either way, I'm sure I'll be smitten with any setup since I'll have ~4.5x the surface area of the BIC, so output should be substantially better.