Check this design please, a bit low SPL is this normal?

[Boscoe]

Basically the looks of this sub I want to build are very important to me and so this is the best compromise of style and size to response, but when I looked at the dB SPL plot it made me a little worried as it was a bit low compared to my current monitors (Monacor SP-210) and so would appreciate a little input! I don't think it's too bad is it?

 

[richie00boy]

Welcome to the trade of extension for efficiency! Try putting in the sort of power it's rated for and see if that can meet your SPL target and doesn't go into over-excursion. I think you might have trouble in the 45-65Hz region.

 

[blakkshepeaudio]

Just double check your data entry. One of the pictures above seems to show an 8 ohm series resistance, which will have a large impact on output.

 

[AndrewT]

well spotted.
That would remove ~6dB from the SPL graph.

 

[Boscoe]

Ahh okay thanks!