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File: DefinMax4012ULFSmallVentedSub1000W.bb6
DefiniMax 4012ULF Small Vented Subwoofer
By Jerry McNutt, Eminence Speaker LLC
1000 Watt Limit. F3 of 47 Hz. Use a Steep High Pass at 45 Hz.
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 1.75 cu.ft
V(total) = 2.035 cu.ft
Fb = 55 Hz
QL = 7
F3 = 47.26 Hz
Fill = minimal
--Vents--
No. of Vents = 1
Vent shape = rectangle
Vent ends = one flush
Hv = 5.5 in
Wv = 5.5 in
Lv = 9.802 in
Driver Properties
--Description--
Name: DefiniMax 4012ULF
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Subwoofer
--Configuration--
No. of Drivers = 1
--Mechanical Parameters--
Fs = 39.87 Hz
Qms = 12.13
Vas = 41.3 liters
Cms = 0.1 mm/N
Mms = 152.8 g
Rms = 3.15 kg/s
Xmax = 6.7 mm
Xmech = 15.5 mm
P-Dia = 262 mm
Sd = 545.4 sq.cm
P-Vd = 0.361 liters
--Electrical Parameters--
Qes = 0.32
Re = 6.2 ohms
Le = 4.32 mH
Z = 8 ohms
BL = 27.38 Tm
Pe = 1200 watts
--Electromech. Parameters--
Qts = 0.312
no = 0.789 %
1-W SPL = 91.12 dB
2.83-V SPL = 92.22 dB
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 1000 watts
Eminence Designer
dB
129
123
117
111
105
99
93
87
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
128
122
116
110
104
98
92
86
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Two -- DefinMax4012ULFSmallVentedSub1000W.bb6
Maximum Electric Input Power (W/Hz)
Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 1000 watts
Eminence Designer
mm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Vent Air Velocity ( m/sec/Hz) with 1000 watts
Eminence Designer
m/s
48
42
36
30
24
18
12
6
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Three -- DefinMax4012ULFSmallVentedSub1000W.bb6
System Impedance (ohms/Hz)
Eminence Designer
ohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
File: DefiniMax4012ULFMediumVentedSub750Watts.bb6
DefiniMax4012ULF Medium Vented Subwoofer
By Jerry McNutt, Eminence Speaker LLC
750 Watt Limit. F3 of 42 Hz. Use a Steep High Pass at 40 Hz.
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 2.75 cu.ft
V(total) = 3.051 cu.ft
Fb = 48 Hz
QL = 7
F3 = 41.6 Hz
Fill = minimal
--Vents--
No. of Vents = 1
Vent shape = rectangle
Vent ends = one flush
Hv = 6 in
Wv = 6 in
Lv = 9.146 in
Driver Properties
--Description--
Name: DefiniMax 4012ULF
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Subwoofer
--Configuration--
No. of Drivers = 1
--Mechanical Parameters--
Fs = 39.87 Hz
Qms = 12.13
Vas = 41.3 liters
Cms = 0.1 mm/N
Mms = 152.8 g
Rms = 3.15 kg/s
Xmax = 6.7 mm
Xmech = 15.5 mm
P-Dia = 262 mm
Sd = 545.4 sq.cm
P-Vd = 0.361 liters
--Electrical Parameters--
Qes = 0.32
Re = 6.2 ohms
Le = 4.32 mH
Z = 8 ohms
BL = 27.38 Tm
Pe = 1200 watts
--Electromech. Parameters--
Qts = 0.312
no = 0.789 %
1-W SPL = 91.12 dB
2.83-V SPL = 92.22 dB
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 750 watts
Eminence Designer
dB
129
123
117
111
105
99
93
87
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
128
122
116
110
104
98
92
86
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Two -- DefiniMax4012ULFMediumVentedSub750Watts.bb6
Maximum Electric Input Power (W/Hz)
Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 750 watts
Eminence Designer
mm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Vent Air Velocity ( m/sec/Hz) with 750 watts
Eminence Designer
m/s
48
42
36
30
24
18
12
6
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Three -- DefiniMax4012ULFMediumVentedSub750Watts.bb6
System Impedance (ohms/Hz)
Eminence Designer
ohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
File: DefiniMax4012ULFLargeVentedSub500Watts.bb6
DefiniMax4012ULF Large Vented Subwoofer
By Jerry McNutt, Eminence Speaker LLC
500 Watt Limit. F3 of 37 Hz. Use a Steep High Pass at 35 Hz.
Box Properties
--Description--
Name:
Type: Vented Box
Shape: Prism, square
--Box Parameters--
Vb = 3.25 cu.ft
V(total) = 3.589 cu.ft
Fb = 42 Hz
QL = 7
F3 = 37.25 Hz
Fill = minimal
--Vents--
No. of Vents = 1
Vent shape = rectangle
Vent ends = one flush
Hv = 6 in
Wv = 6 in
Lv = 10.82 in
Driver Properties
--Description--
Name: DefiniMax 4012ULF
Type: Standard one-way driver
Company: Eminence Speaker LLC
Comment: Subwoofer
--Configuration--
No. of Drivers = 1
--Mechanical Parameters--
Fs = 39.87 Hz
Qms = 12.13
Vas = 41.3 liters
Cms = 0.1 mm/N
Mms = 152.8 g
Rms = 3.15 kg/s
Xmax = 6.7 mm
Xmech = 15.5 mm
P-Dia = 262 mm
Sd = 545.4 sq.cm
P-Vd = 0.361 liters
--Electrical Parameters--
Qes = 0.32
Re = 6.2 ohms
Le = 4.32 mH
Z = 8 ohms
BL = 27.38 Tm
Pe = 1200 watts
--Electromech. Parameters--
Qts = 0.312
no = 0.789 %
1-W SPL = 91.12 dB
2.83-V SPL = 92.22 dB
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 500 watts
Eminence Designer
dB
126
120
114
108
102
96
90
84
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
128
122
116
110
104
98
92
86
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Two -- DefiniMax4012ULFLargeVentedSub500Watts.bb6
Maximum Electric Input Power (W/Hz)
Eminence Designer
watts
2000
1000
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 500 watts
Eminence Designer
mm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Vent Air Velocity ( m/sec/Hz) with 500 watts
Eminence Designer
m/s
48
42
36
30
24
18
12
6
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Three -- DefiniMax4012ULFLargeVentedSub500Watts.bb6
System Impedance (ohms/Hz)
Eminence Designer
ohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
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