User Guide

File: DualOmegaPro18AMedVentedBox550Watts.bb6
Dual OmegaPro18A Med Vented Cabinet
By McJerry, Eminence Speaker LLC
Displacement Limited to 550 Watts; F3 of 47 Hz. Must use a High Pass filter set to 35 Hz to protect woofer
from over excursion.
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 9 cu.ft
V(total) = 10.09 cu.ft
Fb = 45 Hz
QL = 7
F3 = 47.3 Hz
Fill = minimal
--Vents--
No. of Vents = 2
Vent shape = rectangle
Vent ends = one flush
Hv = 20 in
Wv = 2.5 in
Lv = 9.73 in
Driver Properties
--Description--
Name: Omega Pro-18 (8 ohm)
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Revised NOV 2005
Piston: Paper cone.
Suspension: Cloth surround.
Dust Cap: Solid paper dust cap.
Frame: Diecast aluminum basket.
Voice Coil: 4 inch (101.6 mm) copper.
Magnet: 109 oz ferrite magnet.
--Configuration--
No. of Drivers = 2
Mounting = Standard
Wiring = Parallel
Drivers sum coherently = Yes
--Driver Parameters--
Fs = 25.33 Hz
Qms = 8.18
Vas = 548.7 liters [1097]
Xmax = 4.8 mm
Sd = 1159 sq.cm [2318]
Qes = 0.321
Re = 5.2 ohms [2.6]
Le = 1.67 mH [0.835]
Z = 8 ohms [4]
Pe = 800 watts [1600]
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 1600 watts
Eminence Designer
dB
139
133
127
121
115
109
103
97
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
137
131
125
119
113
107
101
95
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K