I'm building a few speakers for HT use and thought I'd figured everything out enough to order drivers and start modelling a box in Unibox. I did all that and failed to notice the power handling, SPL, excursion, and low frequency extension I'd get from the combination I'd settled on.
And of course I already have all the drivers in hand.
Would it be right to assume your average 5.25" midwoofer is limited to something like 20watts of full-range power? The relationship between xmax (excursion) and SPL isn't a difficult one for me to grasp, but the power rating of the driver (in this case, 60watts "Music" power) and the resulting limits of a standard .707 QTC closed box seem terribly disappointing.
If it helps, the driver is the cheap Peerless 830656 and the published specs are:
FS: 58Hz
85dB at 1w/1m
Xmax: 3.5mm
SD: 86.6cm
Unibox is showing a "safe" cone excursion limit of only 24watts for a 9.5litre volume with 2 drivers in parallel (QTC of .932):
So even if I use the high pass in my home theatre receiver, I'm still looking at something like a max of 30 watts to this channel. Is that normal?
And of course I already have all the drivers in hand.
Would it be right to assume your average 5.25" midwoofer is limited to something like 20watts of full-range power? The relationship between xmax (excursion) and SPL isn't a difficult one for me to grasp, but the power rating of the driver (in this case, 60watts "Music" power) and the resulting limits of a standard .707 QTC closed box seem terribly disappointing.
If it helps, the driver is the cheap Peerless 830656 and the published specs are:
FS: 58Hz
85dB at 1w/1m
Xmax: 3.5mm
SD: 86.6cm
Unibox is showing a "safe" cone excursion limit of only 24watts for a 9.5litre volume with 2 drivers in parallel (QTC of .932):

So even if I use the high pass in my home theatre receiver, I'm still looking at something like a max of 30 watts to this channel. Is that normal?