A question about Nelson's OB. Is there a opening rear facing slot in his design also. Gathering materials for this build. And should I stick to his dimension's on width to a T or would 24" be ok?
This version. I don't have enough woofers for the complicated version. Got the base made: 2-3/4" pieces of ply glued and screwed. Also have the 4 odd shaped pieces made that support the woofer plate. Wings are marked out, not cut yet. I need 2 more pieces of wood for the baffle. This may end up with 4 woofers in the end. My wife will appreciate the smaller foofprint.
It's obvious that the Fr drivers are not sensitive to baffle size because I don't think I gave up anything in the upper registers. Bass seem full. Different but full. I'm on my 1st album and need to give this more listening time. My wife will appreciate smaller footprint.
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Pretty sure Nelson sure was saying slot is sealed at rear but the baffle is open at the back.
AN 10 Classic. It's what I had on hand. Down the road a Lowther if I can figure out which one. Crossed @ 250Hz.
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Cross it lower.
You don't want 250Hz coming out of the slot.
80Hz Low pass 160Hz high pass seems to work quite well.
The gap in crossover frequency might seem strange but it seems to work.
Nelson explained the reasoning why it works is because of the rising response of most full range drivers.
You don't want 250Hz coming out of the slot.
80Hz Low pass 160Hz high pass seems to work quite well.
The gap in crossover frequency might seem strange but it seems to work.
Nelson explained the reasoning why it works is because of the rising response of most full range drivers.
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Nothing wrong with Audio Nirvana. I would buy an Alnico Audio Nirvana driver before buying Lowther.
Nothing wrong with AN. Not so exotic, but good performer, especially
compared to price.
I have an assortment of them, and they go well with a glass of Cabernet...
compared to price.
I have an assortment of them, and they go well with a glass of Cabernet...
I have an assortment too. 😀
15" Super Ferrite
10" Super Neodymium
10" Classic Ferrite
10" Classic Alnico
15" Super Ferrite
10" Super Neodymium
10" Classic Ferrite
10" Classic Alnico
