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settings my gains?? deck settings?
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<blockquote data-quote="Moble Enclosurs" data-source="post: 7553743" data-attributes="member: 634917"><p>Well, preout voltage is based on sensitivity of the signal to the amplifier for amplification. So, a 2V vs a 9V preout, which some HUs can get up to, is like saying 14V from the battery or alternator to supply the amplifier. BUT, the difference is, the ones from the HU are low level inputs, so this does not necessarily mean clipping if turning gains up, BUT tricky words are needed here....You should not be setting gains to INCREASE output rather than decrease voltage. So setting gains, should be used mainly to match impedance of high level output(the amplifier itself), So, in most cases, you should be only turning gains to control voltage to match levles and not output as a volume control to increase bass response. The filters will have much more control over bass response than gains. The whole purpose is to get the most out of the amp, and this is done once impedance levels are matched as close as possible. If you do not have a DMM, take the sub out of the box, play the resonance tone of the driver and turn it up until you hear clipping. THIS CAN BE DANGEROUS, so I always recommend getting electrcial equipment to help you out with this, but it can be acceptable. AND when you hear clipping, turn it down a bit. This wil ensure that the subwoofer, even installed, will not ever exceed xmax(audibly). This usually results in less output, but also less distortion, which is very important for the life of the driver. This is where the enclosure will need to do the work. i can put 5 watts into a 12, and hit well over 110dB if done correctly....I have done it many times before for show. its about matching everything and having the RIGHT amount of power, not what you think you have, etc. And more importantly, having the right box.</p><p></p><p>So, manually setting them, I dont recommend, but if you have to, do it without the box involved. This ensures proper voltage at all frequencies, even down to the lowest VLF possible. You will not be able to blow the sub on that voltage as the frequency drops, so does voltage. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Pretty neat really. Those who tune high need to do this way, those who tune low, shouldnt have many problems either way, with Fc or audible gain effects as the result will likely be low as well.</p></blockquote><p></p>
[QUOTE="Moble Enclosurs, post: 7553743, member: 634917"] Well, preout voltage is based on sensitivity of the signal to the amplifier for amplification. So, a 2V vs a 9V preout, which some HUs can get up to, is like saying 14V from the battery or alternator to supply the amplifier. BUT, the difference is, the ones from the HU are low level inputs, so this does not necessarily mean clipping if turning gains up, BUT tricky words are needed here....You should not be setting gains to INCREASE output rather than decrease voltage. So setting gains, should be used mainly to match impedance of high level output(the amplifier itself), So, in most cases, you should be only turning gains to control voltage to match levles and not output as a volume control to increase bass response. The filters will have much more control over bass response than gains. The whole purpose is to get the most out of the amp, and this is done once impedance levels are matched as close as possible. If you do not have a DMM, take the sub out of the box, play the resonance tone of the driver and turn it up until you hear clipping. THIS CAN BE DANGEROUS, so I always recommend getting electrcial equipment to help you out with this, but it can be acceptable. AND when you hear clipping, turn it down a bit. This wil ensure that the subwoofer, even installed, will not ever exceed xmax(audibly). This usually results in less output, but also less distortion, which is very important for the life of the driver. This is where the enclosure will need to do the work. i can put 5 watts into a 12, and hit well over 110dB if done correctly....I have done it many times before for show. its about matching everything and having the RIGHT amount of power, not what you think you have, etc. And more importantly, having the right box. So, manually setting them, I dont recommend, but if you have to, do it without the box involved. This ensures proper voltage at all frequencies, even down to the lowest VLF possible. You will not be able to blow the sub on that voltage as the frequency drops, so does voltage. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Pretty neat really. Those who tune high need to do this way, those who tune low, shouldnt have many problems either way, with Fc or audible gain effects as the result will likely be low as well. [/QUOTE]
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