Alpha 4-4 Large Sealed Midrange By Jerry McNutt, Eminence Speaker LLC 55 Watts, F3 at 150 Hz. Best used above 220 Hz. Box Properties --Description-Name: Type: Closed Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.18 cu.ft V(total) = 0.186 cu.ft Qtc = 0.654 QL = 20 F3 = 149.9 Hz Fill = normal --External Dimensions-A = 12.58 in B = 8.348 in C = 5.732 in --Internal Dimensions-A = 11.08 in B = 6.848 in C = 4.232 in --Wall Thickness-Front = 0.75 in Side = 0.
Page Two -- Alpha4-4LargeSealedMidRange55Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 5.732 in width (b) = 8.348, thickness = 0.75 in 1 Front, 1 Back: height (a) = 11.08 in width (d) = 6.848, thickness = 0.75 in 2 Sides: height (a) = 11.08 in depth (c) = 5.732, thickness = 0.
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Alpha 4-4 Large Vented Midbass Design By Jerry McNutt, Eminence Speaker LLC 35 Watts, F3 at 90 Hz. Best used above 109 Hz. Box Properties --Description-Name: Type: Vented Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.23 cu.ft V(total) = 0.236 cu.ft Fb = 111 Hz QL = 7 F3 = 90.43 Hz Fill = normal --Vents-No. of Vents = 1 Vent shape = round Vent ends = one flush Dv = 2 in Lv = 0.
Page Two -- Alpha4-4LargeVentedMidRange35Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 6.086 in width (b) = 8.92, thickness = 0.75 in 1 Front, 1 Back: height (a) = 12.01 in width (d) = 7.42, thickness = 0.75 in 2 Sides: height (a) = 12.01 in depth (c) = 6.086, thickness = 0.75 in top & bottom --Vent Parts-1 Duct: outside diameter (e) = 2.25 in inside diameter (g) = 2 in length (h) = 0.
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Alpha 4-4 Medium Sealed Midrange Design By Jerry McNutt, Eminence Speaker LLC 55 Watts, F3 at 151 Hz. Best used above 220 Hz. Box Properties --Description-Name: Type: Closed Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.101 cu.ft V(total) = 0.107 cu.ft Qtc = 0.707 QL = 20 F3 = 151.2 Hz Fill = normal --External Dimensions-A = 10.71 in B = 7.191 in C = 5.018 in --Internal Dimensions-A = 9.209 in B = 5.691 in C = 3.518 in --Wall Thickness-Front = 0.75 in Side = 0.
Page Two -- Alpha4-4MediumSealedMidRange55Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 5.018 in width (b) = 7.191, thickness = 0.75 in 1 Front, 1 Back: height (a) = 9.209 in width (d) = 5.691, thickness = 0.75 in 2 Sides: height (a) = 9.209 in depth (c) = 5.018, thickness = 0.
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Alpha 4-4 Medium Vented Midbass Design By Jerry McNutt, Eminence Speaker LLC 35 Watts, F3 at 92 Hz. Best used above 115 Hz. Box Properties --Description-Name: Type: Vented Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.19 cu.ft V(total) = 0.198 cu.ft Fb = 112 Hz QL = 7 F3 = 91.67 Hz Fill = normal --Vents-No. of Vents = 1 Vent shape = round Vent ends = one flush Dv = 2 in Lv = 1.
Page Two -- Alpha4-4MediumVentedMidRange35Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 5.82 in width (b) = 8.49, thickness = 0.75 in 1 Front, 1 Back: height (a) = 11.31 in width (d) = 6.99, thickness = 0.75 in 2 Sides: height (a) = 11.31 in depth (c) = 5.82, thickness = 0.75 in top & bottom --Vent Parts-1 Duct: outside diameter (e) = 2.25 in inside diameter (g) = 2 in length (h) = 1.
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Alpha 4-4 Small Sealed Midrange Design By Jerry McNutt, Eminence Speaker LLC 55 Watts, F3 at 154 Hz. Best used above 220 Hz. Box Properties --Description-Name: Type: Closed Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.0668 cu.ft V(total) = 0.0726 cu.ft Qtc = 0.763 QL = 20 F3 = 154.1 Hz Fill = normal --External Dimensions-A = 9.6 in B = 6.506 in C = 4.594 in --Internal Dimensions-A = 8.1 in B = 5.006 in C = 3.094 in --Wall Thickness-Front = 0.75 in Side = 0.
Page Two -- Alpha4-4SmallSealedMidRange55Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 4.594 in width (b) = 6.506, thickness = 0.75 in 1 Front, 1 Back: height (a) = 8.1 in width (d) = 5.006, thickness = 0.75 in 2 Sides: height (a) = 8.1 in depth (c) = 4.594, thickness = 0.
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Alpha 4-4 Small Vented MidBass Design By Jerry McNutt, Eminence Speaker LLC 50 Watts, F3 at 99 Hz. Best used above 115 Hz. Box Properties --Description-Name: Type: Vented Box Shape: Prism, square (optimum) --Box Parameters-Vb = 0.151 cu.ft V(total) = 0.161 cu.ft Fb = 115 Hz QL = 7 F3 = 99.28 Hz Fill = normal --Vents-No. of Vents = 1 Vent shape = round Vent ends = one flush Dv = 1.75 in Lv = 3.
Page Two -- Alpha4-4SmallVentedMidRange50Watts.bb6 Box Parts c Box Shape: Optimum Square Prism 1 Top, 1 Bottom: depth (c) = 5.536 in width (b) = 8.031, thickness = 0.75 in 1 Front, 1 Back: height (a) = 10.57 in width (d) = 6.531, thickness = 0.75 in 2 Sides: height (a) = 10.57 in depth (c) = 5.536, thickness = 0.75 in top & bottom --Vent Parts-1 Duct: outside diameter (e) = 2 in inside diameter (g) = 1.75 in length (h) = 3.
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