BM mkIII adjusting box size for amp?

coreyva · 01-23-2011, 05:41 PM

I just bought a BM mkIII and am planning my box while awaiting it's arrival. I have a Hifonics Brutus BRZ1200.1D to drive it. It's rated at 900 watts rms into 2 ohms and 450 watts into 4 ohms. I could run it into 2 ohms with the gain turned way down, I'm obviously not looking for a booming system so I think I'll be safe. Then I thought, what if I wired the sub serial and then increased the box size to .75 would I be better off? My concerns are as follows.

1. The lack of dynamic range and possible clipping if wired into 8 ohms.

2. Thermal overload if run into 2 ohms as I should be able to hear if I bottom out the driver.

Opinions?

***Electrodynamic*** · 02-08-2011, 08:04 PM

Sorry I missed this for so long! You should target our recommended 0.5 ft^3 sealed recommendation and adjust power from there. I would run the driver at 8 Ohms to begin with and if you're not satisfied you can wire it down to 2 Ohms and see how it handles the extra power. You'll be surprised at how much performance you get with 200 'ish watts!

coreyva · 02-11-2011, 03:41 PM

No worries. It wasn't until yesterday that it was getting installed. I'll start with the 8ohm load and she how she sounds.

01-23-2011, 05:41 PM	#1 (permalink)
coreyva Junior Member Join Date: Jan 2011 Posts: 2	BM mkIII adjusting box size for amp? I just bought a BM mkIII and am planning my box while awaiting it's arrival. I have a Hifonics Brutus BRZ1200.1D to drive it. It's rated at 900 watts rms into 2 ohms and 450 watts into 4 ohms. I could run it into 2 ohms with the gain turned way down, I'm obviously not looking for a booming system so I think I'll be safe. Then I thought, what if I wired the sub serial and then increased the box size to .75 would I be better off? My concerns are as follows. 1. The lack of dynamic range and possible clipping if wired into 8 ohms. 2. Thermal overload if run into 2 ohms as I should be able to hear if I bottom out the driver. Opinions?

02-08-2011, 08:04 PM	#2 (permalink)
*Electrodynamic* Stereo Integrity Owner Join Date: Mar 2008 Location: Charlotte, NC Posts: 1,148	Sorry I missed this for so long! You should target our recommended 0.5 ft^3 sealed recommendation and adjust power from there. I would run the driver at 8 Ohms to begin with and if you're not satisfied you can wire it down to 2 Ohms and see how it handles the extra power. You'll be surprised at how much performance you get with 200 'ish watts! __________________ Electrodynamic Don't install suckage! Power handling is not a power requirement! Simon Eichenberger is the man.

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02-11-2011, 03:41 PM	#3 (permalink)
coreyva Junior Member Join Date: Jan 2011 Posts: 2	No worries. It wasn't until yesterday that it was getting installed. I'll start with the 8ohm load and she how she sounds.

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