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Originally Posted by CBFryman
I know all of this...but what your forgetting is the resonant frequincy of the vehicle...for such a small volume (cab of a truck) resonany frequincy is going to be well over 45Hz...so there is going to be a peak there also...when i say SQ i dont mean for comp...i mean SQ for hte type of music i liten to...Rock and some rap...a flat bass responce (40-100Hz) is good for both unless of corse you like booming bass while listening to rock in which case a bandpass enclosure would be in order, but i dont an i like the sound of a ported enclosure...and since we aere going to have a peak in bass responce (i know the resonant frequincy in a blazer is near 55Hz so in a truck probably around 70Hz but im not sure) near a whole octave higher it will sound much better to my ears...you see im planing ahead...now that i have explained to you why i want 40-45 Hz tuneing i will have to figure out how the hell im going to keep up in hte 200-300Hz range at which point it can fall off and then pick back up around 1000-2000Hz.....  |
You still don't get it do you? I even posted those response graphs and you
still aren't understanding. Tuning at 45hz WILL NOT give you a flat response from 45hz and up, you might be able to get a relatively flat response from 80-90hz and up, but since we're talking about subwoofers that's useless since it'll be lowpassed at ~80 anyway. Below 80hz you get a huge spike, NOT FLAT. Throw in the cab's resonance around 55-60hz and the cabin gain below and the spike is even larger. And despite what you obviously think, there is plenty of info in rock songs below 40-45hz, I have several songs that I've measured hitting in the high 20's. You probably won't believe me because anyone that disagrees with you is automatically wrong (probably something to do with being 15 and thinking that you know everything, I went through that phase too, luckily I grew out of it and realized I don't know jack), but it's true.
Also, the 200-300hz region isn't very hard at all for mids to play, it's the 80-100hz area that mids have difficulty keeping up with a sub. That all depends on the mids though.