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Hi,
I'm a relative Noob, having done just a pair of matching subs, front 2.5way MTM's (set on the subs) and a center and surrounds. Here are the MTM's and subs.
Image not available
I'm using an HK AVR240 receiver to power everything but the subs, which use plate amps, currently fed by the LFE out. I use the system equally for HT and music. I listen to all types of music, but wanted to expereiment with new 3way mains, using other than a metal midwoofer.
What I originally was thinking of building was a modified version of these:
Asterion
with the Astorius bass module for a 3way combination, here:
Astorius Bass module
Roman has a modified crossover for the RS225 bass module to match the Vifa XG18/OW1 combination and has one with the 22TAF/G as an alternative in the works.
Here is what I currently have to work with. I have already purchased 2 RS22's, 2 XG18's (I picked them up used) and no tweeters. I'm interested in the OW1 or the 22TAF/G. Also, these 3ways must sit on top of the existing subs, so I'm limited to about 33" height for them. I'm concerned about overall sensitivity and how these will match and what is the best configuration. I can do what I originally planned, a WTM (with the M on top so that the tweeter is closer to ear level). However, all the RS 3way threads have me wondering about whether I should be adding a second RS225 for a WWTM or possibly using two extra XG18's (already have the two extra's) and do a WMTM.
So, first I need help determining what the best combination of drivers is. Eventually I'll have to see if I can get some help from Roman to modify his crossover or from someone here to do the same to fit any added drivers.
I was planning on having the TM or MTM section in a separate box from the bass. I know I can get around 54L in the bass section and 25L in the MT section. Below is a look at the general idea of what it would look like in a WWTM.
The bracing probably looks a little odd, but I have plans to potentially use the same basic cabinet, with dadoes slotted in the sides and a removable bottom and back. I can slide in solid panels or open bracing into the slots from the bottom, so I can experiment with sealed, ported and TL versions for the bass bin, before I settle on a final design. I would use just one RS225 for the ported or TL version, and possibly 2 RS225's in the sealed version. The TM section is planned to be ported, but also could be made, sealed or as a TL.
My plan is to use the reciever to cross the sub at probably 60Hz to 250w plate amps in the subs (with 6db bass boost at 30Hz). Subs are sealed at about 40L, 45ยบ downfiring, like the old Allison 9's.
Any feedback, help or suggestions would be very much appreciated!
I'm a relative Noob, having done just a pair of matching subs, front 2.5way MTM's (set on the subs) and a center and surrounds. Here are the MTM's and subs.
Image not available
I'm using an HK AVR240 receiver to power everything but the subs, which use plate amps, currently fed by the LFE out. I use the system equally for HT and music. I listen to all types of music, but wanted to expereiment with new 3way mains, using other than a metal midwoofer.
What I originally was thinking of building was a modified version of these:
Asterion
with the Astorius bass module for a 3way combination, here:
Astorius Bass module
Roman has a modified crossover for the RS225 bass module to match the Vifa XG18/OW1 combination and has one with the 22TAF/G as an alternative in the works.
Here is what I currently have to work with. I have already purchased 2 RS22's, 2 XG18's (I picked them up used) and no tweeters. I'm interested in the OW1 or the 22TAF/G. Also, these 3ways must sit on top of the existing subs, so I'm limited to about 33" height for them. I'm concerned about overall sensitivity and how these will match and what is the best configuration. I can do what I originally planned, a WTM (with the M on top so that the tweeter is closer to ear level). However, all the RS 3way threads have me wondering about whether I should be adding a second RS225 for a WWTM or possibly using two extra XG18's (already have the two extra's) and do a WMTM.
So, first I need help determining what the best combination of drivers is. Eventually I'll have to see if I can get some help from Roman to modify his crossover or from someone here to do the same to fit any added drivers.
I was planning on having the TM or MTM section in a separate box from the bass. I know I can get around 54L in the bass section and 25L in the MT section. Below is a look at the general idea of what it would look like in a WWTM.
The bracing probably looks a little odd, but I have plans to potentially use the same basic cabinet, with dadoes slotted in the sides and a removable bottom and back. I can slide in solid panels or open bracing into the slots from the bottom, so I can experiment with sealed, ported and TL versions for the bass bin, before I settle on a final design. I would use just one RS225 for the ported or TL version, and possibly 2 RS225's in the sealed version. The TM section is planned to be ported, but also could be made, sealed or as a TL.
My plan is to use the reciever to cross the sub at probably 60Hz to 250w plate amps in the subs (with 6db bass boost at 30Hz). Subs are sealed at about 40L, 45ยบ downfiring, like the old Allison 9's.
Any feedback, help or suggestions would be very much appreciated!
Anyway, about the TL comment. I believe Roman sealed the Asterion box when he tried the 3-way version, so that is what I would do, and yes a TL box for the midrange would change the response a bit, so it would require some new crossover modifications. My guess is if you build the Asterion 3-way you will be happy with them. You can see my review on his webpage.
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