too long argument. scroll through only.
now got registered.
energie,
i used apple's username (which i signed off with my nick) on previous thread since i feel not wanting to frequent this forum often hence not bothered to register. But since you got into some kind of argument (discussion shall i say) with appleyard and somehow using my ride setup at reference, i feel i need to straightened some record here.
1. I made the reference (& the winisd graph) with regards to ported box not neccesarily being bigger than sealed box. This is to counter the claim of ppl use sealed box coz' its smaller. The topic of better SQ is not mentioned nor discussed here. It is about 'small'. End.
2. and since the equipment i used is put to 'discussion' ...
- i think most ppl missunderstood that Brahma is an SPL sub. It is NOT and it is an SQ sub with long throw. The excursion capability gives Brahma the ability to play loud BUT in direct competition with subs built purposely for SPL, it stand no chance. So i'm not surprised with the reference being made that it does not do well in the SPL lanes.
and my opinion on small cars eg. Kancil, kelisa being able to pull high SPL numbers vs. other cars. To me it is not about resonance freq. It is purely you have small amount of air to compress. So for those with big cars like me, wall setup is the way to go to cut the volume of air that needs to be compressed. But this limit the class that you can compete.
Vehicle resonant freq. is measured because around here is where the theoretical peak SPL is attainable.
p/s: what is the issue with backseats?
cheers,
kip.