Joe D'Appolito's set-up table, especially for Alcone

Ralph Mantel (RCM) asked Joe D'Appolito, the inventor of the D'Appolito arrangement and one of the best loudspeaker designers, to calculate the correct subwoofer set-up. We have entered the values into a convenient table:
 
Model Cabinet
type		 Driver
number &
connection
type		 Impe-
dance
(Ohm)		 Net
cabinet
size
(Vb in litres)		 Cut-off
frequency
Fb in Hz		 Tuning
frequency
(Fb in Hz)		 Bass
reflex tube
length (mm)		 Bass
reflex tube
diameter (mm)		 Bass Boost
AC 8 SW-4 sealed 1 4 10 45 - - - +6dB at 45 Hz
AC 8 SW-4 sealed 2 in series 8 20 45 - - - +6dB at 45 Hz
AC 8 SW-4 bass reflex 2 in series 8 20 42 45 185 70 -
AC 8 SW-4 bass reflex 2 in series 8 35 32 33 185 70 +3dB at 35 Hz
AC 8 SW-8 sealed 1 8 10 45 - - - +6dB at 45 Hz
AC 8 SW-8 sealed 2 in parallel 4 20 45 - - - +6db at 45 Hz
AC 8 SW-8 bass reflex 2 in parallel 4 20 43 45 185 70 -
AC 8 SW-8 bass reflex 2 in parallel 4 35 32 33 185 70 +3dB at 35 Hz
AC 10 SW-4 bass reflex 1 4 22 28 30 205 50 +3dB at 30 Hz
AC 10 SW-8 sealed 1 8 22 38 - - - +6dB at 40 Hz
AC 10 SW-8 bass reflex 1 8 40 28 30 208 70 -
AC 10 SW-8 bass reflex 1 8 35 28 30 113 70 +3dB at 30 Hz
AC 12 SW-8 bass reflex 1 8 50 23 25 185 70 -
Model Cabinet
type		 Driver
number &
connection-
type		 Impe-
dance
(Ohm)		 Net
cabinet
size
(Vb in litres)		 Cut-off
frequency
Fb in Hz		 Tuning
frequency
(Fb in Hz)		 Bass
reflex tube
length (mm)		 Bass
reflex tube
diameter (mm)		 Bass Boost
AC 5.25 HE sealed 1 8 7 75 - - - -
AC 5.25 HE bass reflex 1 8 22 34 38 196 60 -
AC 6.5 HE sealed 1 8 12 69 - - - -
AC 6.5 HE bass reflex 1 8 43 31 33 169 70 -
AC 8 HE sealed 1 8 25 60 - - - -
AC 8 HE bass reflex 1 8 75 30 30 185 90 -
AC 10 HE sealed 1 8 18 60 - - - -
AC 10 HE bass reflex 1 8 65 28 28 270 90 -