OK guys, I see there's a number of folks interested in talking about center channel's using a three way configuration with WMTW; that's a vertical MT flanked by woofers.
I've done a couple of designs like that in the past for other people, but don't have one myself- ThomasW's center channel dipole is based on that concept using a speaker patterned after the legacy whisper.
I DON'T have a project like that of my own currently in the works, as for my CRT fornt projection setup in a smallish room, I'm hoping to get by with the new MTM design using the RS180's and ScanSpeak tweeter- an expensive tweeter to optimize that layout, but probably not so bad compared with the crossover cost of a good three way.
If I WAS going to do an WMTW center, what might it look like? What does your dream WMTW center channel look like? and Why?
The only reason I think I would consider a bigger center is if I needed greater output capability for a larger room. First idea that comes to mind, since the crossover will be expensive, we want to keep the drivers at moderate cost.
Woofers:
Price king is probably the RS225 8" driver. Only if you plan to use the center below 80 Hz would a bigger driver (like the RS270) make much sense). Probably just go sealed.
Still have a soft spot for the HiVi M8a- I've used this in a number of very nice sounding speakers, and in a three way, it's relatively low peak and smooth response up to 1.8 kHz might be easier to design a crossover for.
Mighty mite- if you have limitations in front panel space, the Extremis 6 might be the ticket- lots of cone travel, but still needs a fair amount of volume if you want to go really low. No getting around Hoffman's iron law.
Midrange:
Here's where there needs to be a lot of investigation and discusion. A lot of midwoofers and cone midrange drivers simply have too much energy storage to use them above 2 kHz. This applies to the Dayton RS series, even the 5"; the smaller ones aren't markedly better than the 7", other than off axis dispersion. Maybe a reasonable compromise would be a 1.8 kHz steep slope crossover, combined with a tweeter that handles the low end gracefully.
Of course, the well endowed financially could just opt for an Accuton...
Tweeter:
Well, how much do you want to spend? You can get most of the way there with a 27TDFC SEAS, but a big Morel, or a Millennium Excel might be fun...
~Jon
I've done a couple of designs like that in the past for other people, but don't have one myself- ThomasW's center channel dipole is based on that concept using a speaker patterned after the legacy whisper.
I DON'T have a project like that of my own currently in the works, as for my CRT fornt projection setup in a smallish room, I'm hoping to get by with the new MTM design using the RS180's and ScanSpeak tweeter- an expensive tweeter to optimize that layout, but probably not so bad compared with the crossover cost of a good three way.
If I WAS going to do an WMTW center, what might it look like? What does your dream WMTW center channel look like? and Why?
The only reason I think I would consider a bigger center is if I needed greater output capability for a larger room. First idea that comes to mind, since the crossover will be expensive, we want to keep the drivers at moderate cost.
Woofers:
Price king is probably the RS225 8" driver. Only if you plan to use the center below 80 Hz would a bigger driver (like the RS270) make much sense). Probably just go sealed.
Still have a soft spot for the HiVi M8a- I've used this in a number of very nice sounding speakers, and in a three way, it's relatively low peak and smooth response up to 1.8 kHz might be easier to design a crossover for.
Mighty mite- if you have limitations in front panel space, the Extremis 6 might be the ticket- lots of cone travel, but still needs a fair amount of volume if you want to go really low. No getting around Hoffman's iron law.
Midrange:
Here's where there needs to be a lot of investigation and discusion. A lot of midwoofers and cone midrange drivers simply have too much energy storage to use them above 2 kHz. This applies to the Dayton RS series, even the 5"; the smaller ones aren't markedly better than the 7", other than off axis dispersion. Maybe a reasonable compromise would be a 1.8 kHz steep slope crossover, combined with a tweeter that handles the low end gracefully.
Of course, the well endowed financially could just opt for an Accuton...
Tweeter:
Well, how much do you want to spend? You can get most of the way there with a 27TDFC SEAS, but a big Morel, or a Millennium Excel might be fun...
~Jon
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