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very clever Bruno. Great thinking. How well does it integrate with the mains though? Do you have phase control?
Hi Bruno,This is a nicely presented project - far better than anything I could ever do.Were some measurements taken with the sides removed, or were the photos taken at a different time ?Have you run it without the sides, and if yes how does it compare/sound ?
I notice the 50Hz blip in the impedance plot which is not noticeable on other responses. It might equate to a room dimension, but is very sharp and there are not any others similar. Any known reason for it ?Cheers ............ Graham.
Bruno,Good stuff - 'appreciate the measurements! I've pondered a similar notion, but haven't tried anything serious yet, as I'm moving my listening room soon.A couple questions, If you can share:1) I understand the neighbor/SPL objective drove the placement to be right by yer head.Have you tried with the frame on the floor just for kicks? like a foot or so behind the seat. Basically I'm wondering about sofa coverage rather than single-seat as you've described. Also because SAF goes up when the box goes down (outta sight) . . .
2) How far is the frame and/or your listening position from the rear wall? 'Apologies if this was mentioned and I missed it. Maybe not a big factor at the super-nearfield listening distance you are using, but I'm still curious.
Bruno-Would you mind sharing the dimensions?
Hi Bruno,I know you filter out the Ripole peak around 200Hz, and this must be related to the cabinet rather than a driver dimension.Does taking the sides away help in that regard ?It also occurs to me that if a Ripole was shrunk in size - as for say 8" drivers - then that 200Hz resonance might be shifted away from bass frequencies - to around 400Hz - and thus further away from the wanted LF working range. Of course more 8" drivers would then become necessary to match the 2x 15" cone area, though with a potential to be more efficient too.Cheers ....... Graham.
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