User Guide

File: Delta15ALargerVentedBox50Watts.bb6
Delta15A Larger Vented Cab.; Low Pwr Fuller Range PA
By McJerry, Eminence Speaker LLC
Displacement Limited to 50 Watts; use a steep high pass filter set to 35 Hz
or higher to protect woofer from overexcursion.
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square (optimum)
--Box Parameters--
Vb = 5.5 cu.ft
V(total) = 5.641 cu.ft
Fb = 49.22 Hz
QL = 7
F3 = 53.27 Hz
Fill = minimal
--Vents--
No. of Vents = 2
Vent shape = round
Vent ends = one flush
Dv = 4.146 in
Lv = 0.75 in
Driver Properties
--Description--
Name: Delta-15 (8 ohm)
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Revised NOV 2005
Piston: Ribbed paper cone.
Suspension: Cloth surround.
Dust Cap: Solid composition paper dust cap.
Frame: Pressed steel basket.
Voice Coil: 2.5 inch (63.5 mm) AL Wire. Kapton former.
Magnet: 56 oz ferrite magnet.
--Configuration--
No. of Drivers = 1
--Mechanical Parameters--
Fs = 40 Hz
Qms = 8
Vas = 270.7 liters
Cms = 0.255 mm/N
Mms = 62.13 g
Rms = 1.95 kg/s
Xmax = 2.7 mm
Xmech = 11.1 mm
P-Dia = 331.8 mm
Sd = 864.6 sq.cm
P-Vd = 0.233 liters
--Electrical Parameters--
Qes = 0.57
Re = 6.3 ohms
Le = 0.64 mH
Z = 8 ohms
BL = 13.2 Tm
Pe = 400 watts
--Electromech. Parameters--
Qts = 0.53
no = 2.931 %
1-W SPL = 96.82 dB
2.83-V SPL = 97.85 dB