Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
Man, I don't think you can skimp on either end of the spectrum. I think the top octave is sometimes hard to hit, and the biggest systems often don't extend out to 20kHz, usually being somewhere between 10kHz and 16kHz for upper cutoff. That's OK, pretty common really. Where you'll have most of your difficulty, I think, is summing through the crossover region, both on-axis and off-axis. This is the part that is most often overlooked in DIY speakers.