Feasable to build a DIY coaxial?

sprinter · 01:51 AM

I have to admit, I'm rather taken with the idea of a single driver setup, mainly because they are supposed to provide a better image and stage due to the pin-point source concept if they are properly implemented. I don't think I care overly much about the crossover issue, but I do like simplicity of design when it gets the job done. I'm very new to this stuff, so I need some direction here.

1. Is the above observation true about the benefit of pin-point source?

2. If so, would it be feasable to make a kind of pseudo-coaxial using a 15" or 18" speaker mounted on an open baffle (maybe an H shape) with a 8 or 10" fullrange driver mounted immediately in front of the woofer on brackets as close as possible to the woofer? A manufactured 15" coaxial speakers would be my first choice, but they are too expensive.

I have a pretty large room to fill and I love a lot of good, smooth bass (not boomy, though). Think bass viol. Also, I don't need a lot of high frequency because my hearing ends at 11 Khz, but I don't want to sacrifice too much for the sake of other listeners.

Suggestions?

sprinter · 24th February 2011, 03:20 AM

Well, as I think about it some more, I suppose the two speakers would just drive each other nuts, so probably wouldn't work. Just thinking out loud...

I have noticed, though, that most open baffle arrangements have the drivers pretty far from each other. What is the reason for that? Could you mimic a pinpoint source better with the drivers as close as possible, but not in tandem?

Pano · 24th February 2011, 04:02 AM

Having a heard a number of OBees, the ones where the drivers are close together sound best to me. Or the coax OBees.

24th February 2011, 01:33 AM	#1
sprinter diyAudio Member Join Date: Feb 2011 Location: Seattle	Feasable to build a DIY coaxial? I have to admit, I'm rather taken with the idea of a single driver setup, mainly because they are supposed to provide a better image and stage due to the pin-point source concept if they are properly implemented. I don't think I care overly much about the crossover issue, but I do like simplicity of design when it gets the job done. I'm very new to this stuff, so I need some direction here. 1. Is the above observation true about the benefit of pin-point source? 2. If so, would it be feasable to make a kind of pseudo-coaxial using a 15" or 18" speaker mounted on an open baffle (maybe an H shape) with a 8 or 10" fullrange driver mounted immediately in front of the woofer on brackets as close as possible to the woofer? A manufactured 15" coaxial speakers would be my first choice, but they are too expensive. I have a pretty large room to fill and I love a lot of good, smooth bass (not boomy, though). Think bass viol. Also, I don't need a lot of high frequency because my hearing ends at 11 Khz, but I don't want to sacrifice too much for the sake of other listeners. Suggestions? Last edited by sprinter; 24th February 2011 at 01:51 AM.

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24th February 2011, 03:20 AM	#2
sprinter diyAudio Member Join Date: Feb 2011 Location: Seattle	Well, as I think about it some more, I suppose the two speakers would just drive each other nuts, so probably wouldn't work. Just thinking out loud... I have noticed, though, that most open baffle arrangements have the drivers pretty far from each other. What is the reason for that? Could you mimic a pinpoint source better with the drivers as close as possible, but not in tandem?

24th February 2011, 04:02 AM	#3
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Having a heard a number of OBees, the ones where the drivers are close together sound best to me. Or the coax OBees.

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