level/gain, subsonic, low pass filter, phase
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level/gain, subsonic, low pass filter, phase
can anyone let me know which each of these do, how they are used, and an example of each:
level/gain
sub-sonic
low pass filter
phase
i see like 0-180 degree on phase. i dont know my audio adjustments so please help me out
thanks
level/gain
sub-sonic
low pass filter
phase
i see like 0-180 degree on phase. i dont know my audio adjustments so please help me out
thanks
Level/Gain is just like it sounds, it sets how much amplification to apply, a lot like a volume **** on the amplifier.
The subsonic filter is a high pass filter [ allows frequencies higher to go through] that is set at frequencies below the range of hearing [~<20Hz], to prevent wasted amplifier power trying to play them.
The low pass filter is just the opposite, it allows low frequencies to go through, usually used for subwoofers, set in the 60-100 Hz range, it limits the frequencies sent to that driver [usually sub].
The phase changes the way the cone moves. Typically, at a frequency, the cone will move in, out, in, out... if you flip the phase 180 degrees, the cone moves out, in, out, in... If you have two drivers that are out of phase [meaning 180 degrees, apart, one moves in while the other is moving out], there can be a lot of cancellation [destructive interference], wave interference.
The subsonic filter is a high pass filter [ allows frequencies higher to go through] that is set at frequencies below the range of hearing [~<20Hz], to prevent wasted amplifier power trying to play them.
The low pass filter is just the opposite, it allows low frequencies to go through, usually used for subwoofers, set in the 60-100 Hz range, it limits the frequencies sent to that driver [usually sub].
The phase changes the way the cone moves. Typically, at a frequency, the cone will move in, out, in, out... if you flip the phase 180 degrees, the cone moves out, in, out, in... If you have two drivers that are out of phase [meaning 180 degrees, apart, one moves in while the other is moving out], there can be a lot of cancellation [destructive interference], wave interference.
Last edited by Ed; Mar 19, 2005 at 01:10 AM.
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He must of tried to steal an image off another site and they dont like it (which most people dont cause it steals there bandwidth) so they got it to pop that up rather then the real picture.
I don't really think the gain should be considered a volume **** because then people just turn it up all the way and call it good. It's used more to match voltage from the HU to the amp. If you try to make the amp put out more voltage than it's receiving from the HU, then you're driving the amp into saturation
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From: 707
Rep Power: 276 im assuming leaving the phase at 0 or 90 would be my best bet to have max performance of my sub thats hooked up to an mono-amp as well?
i usually leave my level a tad above the min. amount. my level **** is on 0.2v and i just put it so its at 1 or 2.
i usually leave my level a tad above the min. amount. my level **** is on 0.2v and i just put it so its at 1 or 2.
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