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Car Audio Discussion
General Car Audio
speaker design recommendation
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<blockquote data-quote="PV Audio" data-source="post: 7984488" data-attributes="member: 554493"><p>Unless you have a fair bit of experience in crossover or analog filter design, making 3-way and in this case, 2.5-way networks can be very tricky. I won't bore you with the whys and what fors if you're not interested, however. What I would say though is that for those woofers, simply do a 2-way. They aren't extremely flexible to work as a dedicated midrange, so I would not bother with making a 2.5-way setup (in case you're wondering, anything with a .5 at the end means it's the next number up but with two identical drivers. In this case, it's a 3 way where the midrange and the woofer are the same driver. As you can imagine, this requires a flexible driver to do properly). The HDS does, however, match well with most tweeters including the one you have selected. If you're going to use it, then simply use it as the midbass in a 2-way.</p><p></p><p>For your second point, that is not an easy question to answer. Reason being, the driver's behavior depends on a lot of factors of which the enclosure volume is only one. I would vent, yes, and given their nature, I'd say around 40Hz would be fine. Those Peerless drivers in particular have fantastic low end extension, but not as much at the high end as the specs would lead you to believe. I would exploit its good low frequency behavior to its fullest and crossover both your woofer pair and your tweeter at around 2500 or 2750Hz. Fiddling with the enclosure volume and port tuning aren't the best way to ensure you'll blend the system together. Design your speakers to perform properly on their own, and I cannot think of a subwoofer which would not be able to EQed to match. Hope that helped some. )</p></blockquote><p></p>
[QUOTE="PV Audio, post: 7984488, member: 554493"] Unless you have a fair bit of experience in crossover or analog filter design, making 3-way and in this case, 2.5-way networks can be very tricky. I won't bore you with the whys and what fors if you're not interested, however. What I would say though is that for those woofers, simply do a 2-way. They aren't extremely flexible to work as a dedicated midrange, so I would not bother with making a 2.5-way setup (in case you're wondering, anything with a .5 at the end means it's the next number up but with two identical drivers. In this case, it's a 3 way where the midrange and the woofer are the same driver. As you can imagine, this requires a flexible driver to do properly). The HDS does, however, match well with most tweeters including the one you have selected. If you're going to use it, then simply use it as the midbass in a 2-way. For your second point, that is not an easy question to answer. Reason being, the driver's behavior depends on a lot of factors of which the enclosure volume is only one. I would vent, yes, and given their nature, I'd say around 40Hz would be fine. Those Peerless drivers in particular have fantastic low end extension, but not as much at the high end as the specs would lead you to believe. I would exploit its good low frequency behavior to its fullest and crossover both your woofer pair and your tweeter at around 2500 or 2750Hz. Fiddling with the enclosure volume and port tuning aren't the best way to ensure you'll blend the system together. Design your speakers to perform properly on their own, and I cannot think of a subwoofer which would not be able to EQed to match. Hope that helped some. ) [/QUOTE]
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