When I was working on my OB design, I had to weigh up 1 x 15 inch vs 2 x 12 inch per side. In the end, I found a real paucity of highish QTS 12 inch drivers. The pro driver market seems one to look at. I'll see what I can remember.
The bass sound that can be produced from a box less speaker would be a start.
And increased amounts of low bass
No baffle step loss
No big speaker cabinets would be nice
To me the idea of having all the drivers in the floor and tweeter sunk into the plastered brick walls really appeals. I can just see my kids pouring juice through the grilles though
Mid range is said to sound flat and uninteresting when done in infinite baffle. Who knows ?
My DIY sealed boxes (the ones with the 18 inch drivers) need about that distance behind them too. Maybe it’s partly to do with driver size as well as with the open baffle...?Simon Hickie wrote: ↑Thu Oct 17, 2019 10:37 amSoundstage implications are interesting. I have to say that my DIY OB speakers provide an extraordinarily big 3D soundstage that's high wide and deep - distinctly better than my semi-omnis. However, they need room to breathe with a meter or more behind them. Therefore, this would mean more rather than less speaker in the room.
I mean, how much bass energy can my sealed boxes’ 18mm of braced MDF absorb and internally reflect anyway...? (Similarly for wooden floorboards or plasterboard walls and ceilings.)
Maybe a lot of sealed / IB speakers are effectively semi-OB below a certain frequency! :-D
LC Audio Technology mains DC filter > Sovereign MTBPS balanced power supply
TQ (Wonfor) Ultra Black cables.
System 2: Anything with a headphone socket > Inca Tech Claymore > Reworked Goodmans Magisters
The 12 inchers do have a higher Fs than i would like. The 15" looks perfect but not sure i could shoe horn it in. Might need to get the chain saw out