Planning ahead for car system - Page 5 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #41 of 44 Old 01-16-10, 10:54 AM
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Re: Planning ahead for car system

No, a subwoofer system will not sound the same in a car as it does in a room. The car will cause unnatural boost in its resonance frequency band (usually 30-60Hz. Look up "cabin gain" or "transfer function") and the very low frequency will likely be lost, especially when the vehicle is moving.
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post #42 of 44 Old 01-16-10, 11:21 PM
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Re: Planning ahead for car system

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Would it sound the same in a car as in a Home Theater if I ported the box to 14hz as mine is right now? What I mean is if I put my current box in a car, and played Toccata and Fugue in D Minor, would the low 16hz tones, and lower sound the same? Would the car have a more flat response, or would the low bass just dissipate through the car and go somewhere else?
If you tune that low and play music with content at that tuning you will SLAUGHTER them compared to home. How do I know? I do it. Cabin gain > room gain.
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post #43 of 44 Old 01-16-10, 11:25 PM
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Re: Planning ahead for car system

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No, a subwoofer system will not sound the same in a car as it does in a room. The car will cause unnatural boost in its resonance frequency band (usually 30-60Hz. Look up "cabin gain" or "transfer function") and the very low frequency will likely be lost, especially when the vehicle is moving.
yes you will get more boost, but 30-60 is incorrect... it is generally a 12dB slope starting around 60Hz... the gain continues down past 30Hz so at 15Hz it'll add aprox another 12dB another at 8Hz and so on. Low frequency will not be lost, moving or not. Going down the interstate with the windows down can/will cause cancellation as the windows and cabin act as a helmhertz resonator, but the bass doesn't just disappear from bing in car... it is actually more contained hence the cabin gain, and driving doesn't "outrun" the bass... less you hit mach 1 hehe jk!
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post #44 of 44 Old 01-17-10, 10:51 PM Thread Starter
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Re: Planning ahead for car system

I might just have to experiment with low porting just to see what it would sound like in a car. I could just put my current box in a car and try it All I would have to do, is take my receiver and front speakers out of my room, my EP2500 and pre amp, and put all that in a car (or truck) and set the sub in there also...now I really want to try it...

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