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<blockquote data-quote="squeak9798" data-source="post: 4691770" data-attributes="member: 555320">It was not necessarily the reflections that worried me....it was the inability to time align the midrange independent of the midbass....as time alignment on both would be necessary and they would also need to be different values.You do not need high mounted mids to achieve a high soundstage.&nbsp; If you can&#039;t get a high soundstage with kicks....you&#039;re doing something wrong.....As for reflections.....they are a can of worms.&nbsp; In kicks/etc steps can be taken to mitigate the amount of early reflections.&nbsp; You can not do this with dash mounted mids.&nbsp; You will always get some comb filtering from the windshield/etc up there and there is absolutely nothing you can do about it like you can in kicks/etc.&nbsp; You can get an idea of where you&#039;ll run into problems my measuring the distance from the speaker to the reflective surface (windshield/etc) and use that measurement to determine frequency.&nbsp; My personal opinion is to avoid early reflections if possible, and would consider high-mounted mids less than ideal for the average user.&nbsp; Yes, some people have used them with good results but they generally have far more experience and knowledge than the average user, and they typically have greater processing power than a 880PRS.Again, doing this method would not allow him independent time alignment of the midrange and midbass.....which would be absolutely necessary.&nbsp; Not a good plan......That could possibly &quot;work&quot;....though it&#039;d still be less than ideal as the highpass of the midrange would be a fixed value, so I still wouldn&#039;t consider it ideal considering the install location.&nbsp; But atleast now he&#039;d have independent time alignment of the midrange and midbass.&nbsp; You&#039;d also want to verify the design of the passive crossover, as it&#039;s potentially harmful to run a passive without a driver connected (midbass) depending on the specific design of the passive.&nbsp; It&#039;s only a single order that you really need to worry about in that regard.....I&#039;m thinking it&#039;s 2nd order off hand.....</blockquote>

[QUOTE="squeak9798, post: 4691770, member: 555320"] It was not necessarily the reflections that worried me....it was the inability to time align the midrange independent of the midbass....as time alignment on both would be necessary and they would also need to be different values. You do not need high mounted mids to achieve a high soundstage. If you can't get a high soundstage with kicks....you're doing something wrong..... As for reflections.....they are a can of worms. In kicks/etc steps can be taken to mitigate the amount of early reflections. You can not do this with dash mounted mids. You will always get some comb filtering from the windshield/etc up there and there is absolutely nothing you can do about it like you can in kicks/etc. You can get an idea of where you'll run into problems my measuring the distance from the speaker to the reflective surface (windshield/etc) and use that measurement to determine frequency. My personal opinion is to avoid early reflections if possible, and would consider high-mounted mids less than ideal for the average user. Yes, some people have used them with good results but they generally have far more experience and knowledge than the average user, and they typically have greater processing power than a 880PRS. Again, doing this method would not allow him independent time alignment of the midrange and midbass.....which would be absolutely necessary. Not a good plan...... That could possibly "work"....though it'd still be less than ideal as the highpass of the midrange would be a fixed value, so I still wouldn't consider it ideal considering the install location. But atleast now he'd have independent time alignment of the midrange and midbass. You'd also want to verify the design of the passive crossover, as it's potentially harmful to run a passive without a driver connected (midbass) depending on the specific design of the passive. It's only a single order that you really need to worry about in that regard.....I'm thinking it's 2nd order off hand..... [/QUOTE]

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