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somethingredicolousihavetomakeup Unregistered guest | how do you get the kind of bass people talk about "when you feel it more in your chest"? w6-v2 powered by a 500/1, how can this be done...please help |
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Silver Member Username: ByrumjrPost Number: 142 Registered: Jan-05 | Get a ported box. |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 1518 Registered: Dec-04 | port a box like 5 hrtz below your cars peak hrtz or watevr |
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Silver Member Username: Addicted2bassMiami, FLORIDA USA Post Number: 373 Registered: Nov-04 | yup a ported box would be best. |
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somethingredicolousihavetomakeup Unregistered guest | thanks guys...how do i fnd out my cars peak hrtz?? |
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Silver Member Username: Addicted2bassMiami, FLORIDA USA Post Number: 376 Registered: Nov-04 | yeh is this you daily driver car or your comp car? If its your daily driver car you would'nt want to tune the enclousure aorund your cars peak frequency. Thats to high for it to sound good. But if this is your daily car tune it from 25-35 should be good. It would sound good, while having noticeble spl increase around the tuning frequency. But if this is your comp car then you tune to your car peak frequency. |
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somethingredicolousihavetomakeup Unregistered guest | thanks man, what are the differences between different frequencys? thanks again guys. |
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Silver Member Username: Addicted2bassMiami, FLORIDA USA Post Number: 378 Registered: Nov-04 | sorry but i didnt quite understand your question. Iys probably me because i only got around 2 hours of sleep last night. But the answer to the ? for the question you asked i found a little explanation on www.bcae1.com, confusing as he11 the first time i read it but it helps, and sorry i couldnt put the digrams up for you so when it says something about a diagram just try to imagine the diagrams. The frequency of an AC signal tells you how many full cycles of an AC waveform are generated in 1 second. It is expressed as a number of cycles per second or as a number of hertz (20 hertz, 1000 hertz, 20,000 hertz...). Standard AC mains voltage (generated in the USA) is 60 cycles per second which can be expressed as 60 hertz. -------------------------------------------------------------------------------- Wavelength: One wavelength is the distance between corresponding parts of consecutive cycles of a sine wave. Lower frequencies have long wavelengths. High frequencies have shorter wavelengths. If we use 1,126.8 ft/sec as the speed of sound (the speed of sound varies with atmospheric pressure and temperature), we can calculate the wavelength (in feet) for any audio frequency. Wavelength = 1,126.8/f For a 20hz tone... Wavelength = 1,126.8/20 The wavelength of a 20hz tone is 56.34 feet. Frequency? Speed of Sound‡: Wavelength: ‡The speed of sound at sea level at 20°C. It can be changed if you wish. -------------------------------------------------------------------------------- Multiple Frequencies: The diagram below shows 2 sine waves. The yellow sine wave is the lower frequency tone (notice its longer wavelength). The green waveform has a frequency which is 4 times as high. A speaker driven with the green sine wave would move back and forth 4 times as fast as a speaker driven by the yellow sine wave. -------------------------------------------------------------------------------- The previous diagram showed two sine waves. These were 2 pure tones overlayed on one another. If the 2 tones were mixed together and viewed with an oscilloscope, they would look like the following diagram. In this case the two waves are 100hz and 400hz. The two highest peaks correspond to the peaks of the 100hz sine wave. As you can see, the peaks are 0.01 seconds apart (as we will calculate a little later). -------------------------------------------------------------------------------- Audio Bandwidth: The audio bandwidth is from 20 hertz to 20,000 hertz. This is generally considered to be the range of frequencies that a normal human can hear but there are few people that can hear the extreme ends of the spectrum well (if at all). This lack of sensitivity at high (treble) and low (bass) frequencies is worse at low volumes. This is why your system may sound a little short on bass and treble at low volume. Many head units have a loudness contour to make up for the lack of sensitivity at both ends of the audio spectrum. -------------------------------------------------------------------------------- Time vs Frequency: You can also calculate time from frequency. If you have a 250hz sine wave, the time to complete one cycle is 0.004 seconds. t = 1/f t = 1/250 t = 0.004 seconds Frequency Time (seconds) for 1 Cycle -------------------------------------------------------------------------------- Frequency vs Time: The frequency is equal to the inverse of the time it takes to complete one cycle. If it takes 0.01 seconds to complete one cycle, the frequency of the sine wave is 100hz. f = 1/t f = 1/0.01 f = 100hz Time (seconds) for 1 Cycle Frequency -------------------------------------------------------------------------------- This next link is a large file (160k+) and will take a few minutes to download. Please be patient. WARNING: Turn your sound card's volume near its lowest position before clicking on the links below. This link is a multitone .wav file. There are 6 different frequencies. They are 40hz, 100hz, 250hz, 500hz, 1000hz and 2000hz. Each lasts for 3 seconds. Be careful with the volume. The first tone is a very low frequency which your speakers may not be able to reproduce. If you turn the volume too loud at first, you may damage your speakers or get a really loud surprise when the next frequency starts. |
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somethingredicolousihavetomakeup Unregistered guest | yea i read that, but too conusing. like i understand what tones are, butwhat are the differances in sound between the different frequencys |
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Silver Member Username: Addicted2bassMiami, FLORIDA USA Post Number: 381 Registered: Nov-04 | umm...im still kind of brain dead so tell me if this helps, if not ill try again, the differnce is that when you play like a 30hz bass check song and it plays very low It's not the bass that will kill you ears because its so low. But then you play like a 45 hz bass check track the note will be a higher tone than the 30hz and usually in spl comps its louder becasue it closest to your car resonance freq. than playing the 30hz so not only will the tone be be higher than the 30hz in frequency but on the meter it will read higher than the 30hz. Hope this helps if it doesnt i'll try again or somebody will have to help. |
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somethingredicolousihavetomakeup Unregistered guest | that helpled thanks man |
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Silver Member Username: Addicted2bassMiami, FLORIDA USA Post Number: 385 Registered: Nov-04 | no problem |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 1540 Registered: Dec-04 | bass, i hate how bad pot fed up my mind lol, that was gibberish haha |