First time poster, and first speaker project (though i have done simple mods and such). Thanks for your patience.
I have what I consider to be a decent HT system. My mains are ESS PS4As, with the cast face Heil AMT2s. In an effort to improve my front soundstage, I've been using an old Pioneer HPM-60 on its side. While it's much better than what I had before, I've decided to take a stab at making my own center. I have a spare HPM-100 4" midrange driver that I'd like to use unless given a compelling reason not to, and I grabbed one of the smallest ESS Heils off of the bay; this one is from someone's old LE-20, so it's really small (5"x3"). So I have what I believe is a decent midrange and a good tweeter. I'm looking for a pair of well matching woofers, probably 10" since that is what my mains are, or maybe 8" if given a good reason for it. My budget is around $50 per driver ($100 total).
I would prefer a first order crossover, but if that's not feasible I'm open to other options. If it's first order perhaps 500-1kHz & 3k-4k makes sense? If it ends up being 2nd/3rd order on the crossover, tighter crossover points could make sense. I would likely L-Pad it with those fancy knobs I've seen at partsexpress. I guess I hope to keep it as simple as possible, but if woofer selection demands it (for example) I'll do what it takes.
I've never built a cab either; I'm thinking of a simple MDF box, with the obvious damping material, etc. I don't mind large, but it has to sit on the floor or close to it as it has to be under my large projection screen. I've seen a lot of reference to various software to help; I'm all ears. I have access to windows/linux/mac, so that's not a limiter. Free or very cheap is likely my budget for software though. I've heard of speaker workshop. Will this be enough?
Another thought is that I don't know what the parameters are for my existing drivers. The 4" mid is likely 8 Ohms, and the ESS Heil measures 5.8 Ohms or so with a cheap multimeter.
I see a lot of mention of Ts, Xmax, Fs, and other driver parameters. Could someone point me in the right direction with a good article explaining it all?
Thanks a lot for putting up with a newb who's read way too much speaker stuff (and yet not enough!) so thanks ahead of time for your patience. I'm just trying to put together a center I can be proud of. And I'm willing to learn what I need to do it.
IBJamon
I have what I consider to be a decent HT system. My mains are ESS PS4As, with the cast face Heil AMT2s. In an effort to improve my front soundstage, I've been using an old Pioneer HPM-60 on its side. While it's much better than what I had before, I've decided to take a stab at making my own center. I have a spare HPM-100 4" midrange driver that I'd like to use unless given a compelling reason not to, and I grabbed one of the smallest ESS Heils off of the bay; this one is from someone's old LE-20, so it's really small (5"x3"). So I have what I believe is a decent midrange and a good tweeter. I'm looking for a pair of well matching woofers, probably 10" since that is what my mains are, or maybe 8" if given a good reason for it. My budget is around $50 per driver ($100 total).
I would prefer a first order crossover, but if that's not feasible I'm open to other options. If it's first order perhaps 500-1kHz & 3k-4k makes sense? If it ends up being 2nd/3rd order on the crossover, tighter crossover points could make sense. I would likely L-Pad it with those fancy knobs I've seen at partsexpress. I guess I hope to keep it as simple as possible, but if woofer selection demands it (for example) I'll do what it takes.
I've never built a cab either; I'm thinking of a simple MDF box, with the obvious damping material, etc. I don't mind large, but it has to sit on the floor or close to it as it has to be under my large projection screen. I've seen a lot of reference to various software to help; I'm all ears. I have access to windows/linux/mac, so that's not a limiter. Free or very cheap is likely my budget for software though. I've heard of speaker workshop. Will this be enough?
Another thought is that I don't know what the parameters are for my existing drivers. The 4" mid is likely 8 Ohms, and the ESS Heil measures 5.8 Ohms or so with a cheap multimeter.
I see a lot of mention of Ts, Xmax, Fs, and other driver parameters. Could someone point me in the right direction with a good article explaining it all?
Thanks a lot for putting up with a newb who's read way too much speaker stuff (and yet not enough!) so thanks ahead of time for your patience. I'm just trying to put together a center I can be proud of. And I'm willing to learn what I need to do it.
IBJamon
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