Not that it matters but it appears that you put all 4 speakers in one cabinet. That cabinet is divided into two sections, so essentially two cabinets in one.
So, why didn't you actually make it two cabinets each?
I'm not implying anything wrong with your method, just curious about the motivation behind the design decision.
By the way, it looks pretty impressive. I'm eager to see the project develop to the end.
Thanks.
Steve/bluewizard
So, why didn't you actually make it two cabinets each?
I'm not implying anything wrong with your method, just curious about the motivation behind the design decision.
By the way, it looks pretty impressive. I'm eager to see the project develop to the end.
Thanks.
Steve/bluewizard
Yes, I realize that one is an MM (or perhaps a WW) and the other is an MTM, but that still doesn't explain why one cabinet instead of two.
Now, I'm not implying you did it wrong, just curious about why you made the decision you did. If this was all one open cabinet, I could see it all being in one cabinet. But you have essentially created two cabinets, yet built them into one.
Again, there is no right or wrong, but from my own perspective two cabinets would seem more versatile. Though it is not clear that the versatility is actually needed.
I'm not challenging you, just curious.
Steve/bluewizard
Now, I'm not implying you did it wrong, just curious about why you made the decision you did. If this was all one open cabinet, I could see it all being in one cabinet. But you have essentially created two cabinets, yet built them into one.
Again, there is no right or wrong, but from my own perspective two cabinets would seem more versatile. Though it is not clear that the versatility is actually needed.
I'm not challenging you, just curious.
Steve/bluewizard
Two cabinets in one, center divider goes all the way back.
Aesthetic decision really, I don't think there is any advantage here, although they are a bit more stable as one solid/tall box. And tweeter is 37", apparently more important in a MTM.
Now if all else fails, can cut away the bottom, or fill in the holes, etc.
btw, all MEDEX here, really nice to work with!
btw II didn't really use a car jack to clamp sides, but have done that before
Wish I had some square metal bars, could make some really powerful clamps with bars (or angle iron) and all-thread.
Aesthetic decision really, I don't think there is any advantage here, although they are a bit more stable as one solid/tall box. And tweeter is 37", apparently more important in a MTM.
Now if all else fails, can cut away the bottom, or fill in the holes, etc.
btw, all MEDEX here, really nice to work with!
btw II didn't really use a car jack to clamp sides, but have done that before
Wish I had some square metal bars, could make some really powerful clamps with bars (or angle iron) and all-thread.
I thought the size (heigth) would be self explanatory. Instead of a stand, use the 0.5 as the stand, raising the tweeter position to a more appropriate level with the ear, killing two birds with one stone. 🙂
Wow! You sure work fast. I hope that once I start my Ansonica build this fall that I'm able to make the same kind of progress you've made. Looking forward to your listening notes.
Looking good Doud
Dug, Dugg, Dough, all the same, and thanks for stopping in.
So here we go, impressive for a wire-up and go, go, go. Well balanced sound, not used to the big sound, but no complaints. They sure fill up the room with sound!
I didn't line the boxes with felt, but loaded up with different layers of wool, used the "cheap stuff" first, and then 10oz on top of that (per speaker).
I thought they might have some boom since they are on the floor, but not bad at all. Will make some 3" stands soon.
Thinking there may be some other hook-ups with double amps and active xo.
So here we go, impressive for a wire-up and go, go, go. Well balanced sound, not used to the big sound, but no complaints. They sure fill up the room with sound!
I didn't line the boxes with felt, but loaded up with different layers of wool, used the "cheap stuff" first, and then 10oz on top of that (per speaker).
I thought they might have some boom since they are on the floor, but not bad at all. Will make some 3" stands soon.
Thinking there may be some other hook-ups with double amps and active xo.
Attachments
Doug, notice the drop in level between 200 and 500. This can be mostly negated if the drivers are isolated from one another. Little more tweaking around the 2k area also.
It's shaping up very nice thus far. 🙂
It's shaping up very nice thus far. 🙂
Crank em up...party at Doug's house 
They are sounding nice, so happy about that... it was a little nerve racking not knowing.
How would I isolate the woofers
With second amp and Y's?
If I disconnect the existing xo before the 6mh coil, I'll have two set of 16ohm speakers.
They are sounding nice, so happy about that... it was a little nerve racking not knowing.
How would I isolate the woofers
With second amp and Y's?If I disconnect the existing xo before the 6mh coil, I'll have two set of 16ohm speakers.
Attachments
Physically isolate them. Simple divider separating them physically within the enclosure.Crank em up...party at Doug's house
They are sounding nice, so happy about that... it was a little nerve racking not knowing.
How would I isolate the woofers
If I disconnect the existing xo before the 6mh coil, I'll have two set of 16ohm speakers.
Oh Oh, too late for that, we went with 2 chambers with two very very deep ports (17" long each) . The tunning is below 35hz.
Lower woofers are loaded by the floor, higher level below 200hz due to boundary reinforcement. 2 khz is a baffle diffraction effect.
Cut each shelf in half and placed inside each enclosure middle is all that's required, doesn't even need to be that thick, ¼" mdf would do.
This why I rather use the MM setup with woofers placed side by side. Instead of a single reflection the typical MTMMM line exhibits multiple reflection distances compounding the floor bounce and asymetrical loading of the 0,5 MM section.
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