User Guide

File: Beta15ASealed.bb6
Beta15A Sealed Semi-Full Range Enclosure
By McJerry, Eminence Speaker LLC
Displacement Limited to 175 Watts; use above 70 Hz.
Good Floor Monitor or as a general voice PA cabinet.
Box Properties
--Description--
Name:
Type: Closed Box
Shape: Prism, square
--Box Parameters--
Vb = 1.75 cu.ft
V(total) = 1.869 cu.ft
Qtc = 1.018
QL = 8.85
F3 = 70.73 Hz
Fill = heavy
Driver Properties
--Description--
Name: Beta-15
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Revised OCT 2005
Piston: Ribbed paper cone.
Suspension: Cloth surround.
Dust Cap: Solid paper dust cap.
Frame: Pressed steel basket.
Voice Coil: 2 inch (50.8 mm) coated copper.
Magnet: 38 oz ferrite magnet.
--Configuration--
No. of Drivers = 1
--Driver Parameters--
Fs = 35 Hz
Qms = 8.1
Vas = 334.6 liters
Xmax = 4 mm
Sd = 823.7 sq.cm
Qes = 0.63
Re = 6.32 ohms
Le = 1.1 mH
Z = 8 ohms
Pe = 350 watts
Normalized Amplitude Response (dB-SPL/Hz)
Eminence Designer
dB
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 175 watts
Eminence Designer
dB
125
119
113
107
101
95
89
83
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m)
Eminence Designer
dB
127
121
115
109
103
97
91
85
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K