magic no, 4th order (ported and bandpass), yes I believe in them. they are great in certain applications BUT for some reason ive read many posts where some users think they will be louder simply because it is a 4th order bandpass... Most have no clue that why not save the enclosure size while gaining the extra output and run a 4th order ported enclosure... most if not all amps have a LPF correct? a 4th order banpass simply does the same but does so acoustically and normally at about a -24db/octave slope compared to a electronically filtered LPF (like on most amps) -12db/octave slope.so do you not believe in magic or fourth orders?
well now now there. you cant throw in a t-line as well. sheesh, 6th order is ok, but not a t-line. not talking quarter wavelength loudspeaker design heremight as well throw the T line and 6th order into the fray as well.... lol
but but but... t-line is the current forum boner! 4th order was soo last year!well now now there. you cant throw in a t-line as well. sheesh, 6th order is ok, but not a t-line. not talking quarter wavelength loudspeaker design here