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<blockquote data-quote="Theride" data-source="post: 6869668" data-attributes="member: 566955">Ive been reading up on these things for a long time.&nbsp; Since this is my first time trying to go into the TECHNICALS of car audio, these are kinda hard to comprehend.Ok, so I understand frequency(or so i think) If a tweeter is made to be crossed at 2.5khz to 5.0khz, i shouldnt go lower like 1.2 or 2.0.Now.. Octave Slope, I see 12db octave slope, 18 and 24. I read something that its the roll-off something. roll-off what? lets say i set my tweeter to 3.5khz, is it ok to set the slope at 12db octave? would you hear a difference if you set it at 18 or 24? Is changing the slope a personal thing to YOU or is it a general guide made by the manufacturer? for example, if i set the tweeter at 3.5khz, is it a MUST that it is set to 12db octave slope?Now, while researching an ACTIVE AMP, Some of the guys dropped some new things that i never heard of. One of the guys said the amp has to have.... x1 and x10..... huh? what does this do?Bandpass-im using a 4ch amp. 1/2 for tweeter and 3/4 for midwoofer. and a separate amp for subwoofer. how does bandpass play any role in this?Subsonic?- i dont even know how to formulate a question about this.Time Alignment. I think I have an understanding of this.bare with me guys. im coming from runing 5x7 boss coaxial speakers. Im used to set it to my liking and forget it. But going active or even messing with high-end equipments, you have to have some understanding as it will be an expensive mistake.</blockquote>

[QUOTE="Theride, post: 6869668, member: 566955"] Ive been reading up on these things for a long time. Since this is my first time trying to go into the TECHNICALS of car audio, these are kinda hard to comprehend. Ok, so I understand frequency(or so i think) If a tweeter is made to be crossed at 2.5khz to 5.0khz, i shouldnt go lower like 1.2 or 2.0. Now.. Octave Slope, I see 12db octave slope, 18 and 24. I read something that its the roll-off something. roll-off what? lets say i set my tweeter to 3.5khz, is it ok to set the slope at 12db octave? would you hear a difference if you set it at 18 or 24? Is changing the slope a personal thing to YOU or is it a general guide made by the manufacturer? for example, if i set the tweeter at 3.5khz, is it a MUST that it is set to 12db octave slope? Now, while researching an ACTIVE AMP, Some of the guys dropped some new things that i never heard of. One of the guys said the amp has to have.... x1 and x10..... huh? what does this do? Bandpass-im using a 4ch amp. 1/2 for tweeter and 3/4 for midwoofer. and a separate amp for subwoofer. how does bandpass play any role in this? Subsonic?- i dont even know how to formulate a question about this. Time Alignment. I think I have an understanding of this. bare with me guys. im coming from runing 5x7 boss coaxial speakers. Im used to set it to my liking and forget it. But going active or even messing with high-end equipments, you have to have some understanding as it will be an expensive mistake. [/QUOTE]

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