haven't tried them sideways


but at one time considered laying a 4648a-8 on it's side, putting a cinder block on each corner, and setting a second 4648a-8 on top. Plan was to stick the 511 in between the two 4648a-8's, decided it was too much trouble. Also envisioned a vertical array, 4648a-8, 511 horn, and another 4648a-8, about 8 feet tall, 300 pounds, a very "overbearing" presence in the room was feared, so I'm trying to think nice small speaker thoughts so my evil twin won't get his way.
I eventually plan to build the dual 2226J's into nicer, Onken style enclosures.
I am not sure how high the 288's go. The 902's go pretty high w/o compensation; with only the 0.33uF bypass, their upper octave may still be a little "hot" even. 800Hz. is OK for your xover, the notch/dip at 817Hz. is rather sharp, and probably only a factor when playing sine waves:) Sam


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