8 Ohm and 4 Ohm (not a 'load' question)

[AfroMan Skeeter]

I get impedance's, but I have recently come into a 4 Ohm Avatar 2x12 and 8 Ohm Aguilar 2x12.

They sound beautiful, but there is obviously different amounts of power going to each cab. I'm not sure of the sensitivity difference and efficiency playing a part here, but due to the Aguilar receiving less power would I be smart to have that cab on top? Would that trick my ears, or people's for that matter, into thinking it's an evenly dispersed sound?

 

[Bassmec]

No unless you power them separately they will always be mismatched
because each individual loudspeaker chassis is not matched.

 

[bongomania]

Yeah, not knowing the sensitivities, I would only do that if the 8 ohm cab was a 1x12 not a 2x12.

 

[yodedude2]

okay, i do not know what i am talking about...now that that's established, won't individual speaker resistance and cabinet wiring come into play here? for instance...if the aguilar 2x12 has two 4 ohm speakers wired in series, won't the amp 'see' that as one speaker load? if the aguilar has two 16 ohm speakers wired in parallel (for an 8 ohm nominal total), won't the amp see that as two distinct speaker loads? (or is this all a load of...) later, ron

 

[AfroMan Skeeter]

okay, i do not know what i am talking about...now that that's established, won't individual speaker resistance and cabinet wiring come into play here? for instance...if the aguilar 2x12 has two 4 ohm speakers wired in series, won't the amp 'see' that as one speaker load? if the aguilar has two 16 ohm speakers wired in parallel (for an 8 ohm nominal total), won't the amp see that as two distinct speaker loads? (or is this all a load of...) later, ron

The amp sees each cabinet as one load, so the amp is seeing two loads overall (with both cabinets). I think that's what you were asking?

Thanks to the others too, eventually I might go back to the ol' power/pre rack set-up. But for now I'll keep the Aggie on bottom, it does have casters after all ;D

 

[billfitzmaurice]

The sensitivity difference is going to be too slight to matter. The power difference into the two will be 2:1. That's not as bad as it seems, though it's far from ideal. As for placement try it both ways, go with what sounds best.