Stealth 8.4
S
S T
T E
E A
A L
L T
T H
H S
S E
E R
R II E
E S
S 3
3 S
S U
U B
B W
W O
O O
O F
F E
E R
R S
S
Stealth 8.4 Specifications
Diameter:
8”
No. of Voice Coils:
1
Sensitivity (1W @ 1m):
91 dB
Power Handling:
150 Wrms
(cont. unclipped power
per EIA RS-426A)
Frequency Response:
50 ~ 500 Hz
Nominal Impedance:
4
Ω
Voice Coil Diameter:
1.5”
Mounting Diameter:
6
7/
8
” (17.46 cm)
Mounting Depth:
3
3/
8
”
(8.57 cm)
Stealth 8.4 Thiele-Small Parameters
Free-Air Resonance:
fs
51 Hz
Total Q:
Qts
0.453
Mechanical Q:
Qms
7.67
Electrical Q:
Qes
0.482
Compliance Volume:
Vas
.36 ft
3
Maximum Excursion:
Xmax
+ 0.438”
(peak to peak)
+ 1.11 mm
Voice Coil DC Resistance:
Revc
3.3
Ω
Effective Cone Area:
Sd
33.17 in
2
Driver Displacement:
.035 ft
3
E-85
7
4
5/8
8
3/8
3
1/8
3
9/16
Stealth-8.4 Sealed Box
Optimum Enclosure: Deep Bass
Enclosure Volume:
V
BOX
= 0.50 ft
3
(net) + 0.035 ft
3
(driver displacement)
Total Box Volume:
0.535 ft
3
Quality (Q):
.537
Cutoff (F
3
):
91 Hz
Resonance (F
c
):
65 Hz
V
BOX
E-86
Stealth-8.4 Suspension Bandpass
(Single Reflex)
Optimum Enclosure: 65 Hz Tuning - Deep Bass
Enclosure Volume:
V
BOX REAR
= 0.50 ft
3
(net) + 0.035 ft
3
(driver displacement)
V
BOX FRONT
= 0.25 ft
3
(net) + port displacement
Number of Ports:
1
1
1
Port Diameter:
2.0 in
2.5 in/ea.
3.0 in
Total Port Area:
3.15 in
2
4.90 in
2
7.07 in
2
Port Length:
6.00 in
10.00 in/ea.
15.00 in.
Port Displacement (total):
.01 ft
3
.03 ft
3
.06 ft
3
Total Box Volume (rear):
.535 ft
3
.535 ft
3
.535 ft
3
Total Box Volume (front):
.26 ft
3
.28 ft
3
.31 ft
3
V
BOX REAR
V
BOX FRONT
diam.
L
V
E-87
Stealth 8.4 Reflex Bandpass
(Dual Reflex)
Optimum Enclosure: Deep Bass
Enclosure Volume:
V
BOX REAR
= 0.80 ft
3
(net) + 0.035 ft
3
(driver displacement)
V
BOX FRONT
= 0.21 ft
3
(net) + port displacement
Rear
Front
Tuning Frequency:
35 Hz
74 Hz
Number of Ports:
1
1
Port Dimensions:
2.0 in
2.0 in
Total Port Area:
3.14 in
2
3.14 in
2
Port Length:
7.52 in
6.11 in
Port Displacement (total):
.01 ft
3
.01 ft
3
Total Box Volume:
.845 ft
3
.22 ft
3
V
BOX REAR
V
BOX FRONT
L
V
L
V
E-88
Stealth-8.4 Bass Reflex
Optimum Enclosure: 35 Hz Tuning - Deep Bass
Enclosure Volume:
V
BOX
= 0.810 ft
3
(net) + 0.035 ft
3
(driver displacement) + port
displacement
Number of Ports:
1
2
1
Port Diameter:
2.0 in
1.5 in/ea.
1.5 in x 2.0 in
(rectangular)
Total Port Area:
3.14 in
2
3.54 in
2
3.00 in
2
Port Length:
10.17 in
11.40 in/ea.
9.57 in
Port Displacement (total):
.018 ft
3
.023 ft
3
.016 ft
3
Total Box Volume:
.863 ft
3
.868 ft
3
.861 ft
3
V
BOX
diameter
L
V
E-89
Stealth 8.8
S
S T
T E
E A
A L
L T
T H
H S
S E
E R
R II E
E S
S 3
3 S
S U
U B
B W
W O
O O
O F
F E
E R
R S
S
Stealth 8.8 Specifications
Diameter:
8”
No. of Voice Coils:
1
Sensitivity (1W @ 1m):
91 dB
Power Handling:
150 Wrms
(cont. unclipped power
per EIA RS-426A)
Frequency Response:
50 ~ 500 Hz
Nominal Impedance:
8
Ω
Voice Coil Diameter:
1.5”
Mounting Diameter:
6
7/
8
” (17.46 cm)
Mounting Depth:
3
1/
8
”
(8.57 cm)
Stealth 8.8 Thiele-Small Parameters
Free-Air Resonance:
fs
53 Hz
Total Q:
Qts
0.458
Mechanical Q:
Qms
6.92
Electrical Q:
Qes
0.490
Compliance Volume:
Vas
.36 ft
3
Maximum Excursion:
Xmax
+.438”
(peak to peak)
+ 1.11 cm
Voice Coil DC Resistance:
Revc
6.7
Ω
Effective Cone Area:
Sd
33.17 in
2
Driver Displacement:
.035 ft
3
E-91
7
4
5/8
8
3/8
3
1/8
3
9/16
Stealth-8.8 Sealed Box
Optimum Enclosure: Deep Bass
Enclosure Volume:
V
BOX
= 0.50 ft
3
(net) + 0.035 ft
3
(driver displacement)
Total Box Volume:
0.535 ft
3
Quality (Q):
.549
Cutoff (F
3
):
93 Hz
Resonance (F
c
):
68 Hz
V
BOX
E-92
Stealth-8.8 Suspension Bandpass
(Single Reflex)
Optimum Enclosure: 68 Hz Tuning - Deep Bass
Enclosure Volume:
V
BOX REAR
= 0.50 ft
3
(net) + 0.035 ft
3
(driver displacement)
V
BOX FRONT
= 0.25 ft
3
(net) + port displacement
Number of Ports:
1
1
1
Port Diameter:
2.0 in
2.5 in/ea.
3.0 in
Total Port Area:
3.14 in
2
4.90 in
2
7.06 in
2
Port Length:
5.50 in
9.00 in/ea.
13.50 in.
Port Displacement (total):
.01 ft
3
.03 ft
3
.05 ft
3
Total Box Volume (rear):
.535 ft
3
.535 ft
3
.535 ft
3
Total Box Volume (front):
.26 ft
3
.28 ft
3
.30 ft
3
V
BOX REAR
V
BOX FRONT
diam.
L
V
E-93
Stealth-8.8 Reflex Bandpass
(Dual Reflex)
Optimum Enclosure: Deep Bass
Enclosure Volume:
V
BOX REAR
= 1.00 ft
3
(net) + 0.035 ft
3
(driver displacement)
V
BOX FRONT
= 0.21 ft
3
(net) + port displacement
Rear
Front
Tuning Frequency:
34 Hz
75 Hz
Number of Ports:
1
1
Port Dimensions:
2.0 in
2.0 in
Total Port Area:
3.15 in
2
3.15 in
2
Port Length:
6.07 in
5.90 in
Port Displacement (total):
.01 ft
3
.01 ft
3
Total Box Volume:
1.04 ft
3
.22 ft
3
V
BOX REAR
V
BOX FRONT
L
V
L
V
E-94
Stealth-8.8 Bass Reflex
Optimum Enclosure: 35 Hz Tuning - Deep Bass
Enclosure Volume:
V
BOX
= 0.810 ft
3
(net) + 0.035 ft
3
(driver displacement) + port
displacement
Number of Ports:
1
2
1
Port Diameter:
2.0 in
1.5 in/ea.
1.5 in x 2.0 in
(rectangular)
Total Port Area:
3.14 in
2
3.54 in
2
3.00 in
2
Port Length:
10.17 in
11.40 in/ea.
9.57 in
Port Displacement (total):
.018 ft
3
.023 ft
3
.016 ft
3
Total Box Volume:
.863 ft
3
.868 ft
3
.861 ft
3
V
BOX
diameter
L
V
E-95
Stealth 8.12
S
S T
T E
E A
A L
L T
T H
H S
S E
E R
R II E
E S
S 3
3 S
S U
U B
B W
W O
O O
O F
F E
E R
R S
S
Stealth 8.12 Specifications
Diameter:
8”
No. of Voice Coils:
1
Sensitivity (1W @ 1m):
91 dB
Power Handling:
150 Wrms
(cont. unclipped power
per EIA RS-426A)
Frequency Response:
50 ~ 500 Hz
Nominal Impedance:
12
Ω
Voice Coil Diameter:
1.5”
Mounting Diameter:
6
7/
8
” (17.46 cm)
Mounting Depth:
3
3/
8
”
(8.57 cm)
Stealth 8.12 Thiele-Small Parameters
Free-Air Resonance:
fs
50 Hz
Total Q:
Qts
0.544
Mechanical Q:
Qms
6.80
Electrical Q:
Qes
0.592
Compliance Volume:
Vas
.36 ft
3
Maximum Excursion:
Xmax
+ 0.438”
(peak to peak)
+ 1.11 cm
Voice Coil DC Resistance:
Revc
11.1
Ω
Effective Cone Area:
Sd
33.17 in
2
Driver Displacement:
.035 ft
3
E-97
7
4
5/8
8
3/8
3
1/8
3
9/16
Stealth-8.12 Sealed Box
Optimum Enclosure: Deep Bass
Enclosure Volume:
V
BOX
= 1.50 ft
3
(net) + 0.10 ft
3
(driver displacement)
(3 woofers common cavity)
Total Box Volume:
1.60 ft
3
Quality (Q):
.643
Cutoff (F
3
):
71 Hz
Resonance (F
c
):
64 Hz
V
BOX
E-98
Stealth-8.12 Bass Reflex
Optimum Enclosure: 35 Hz Tuning - Deep Bass
Enclosure Volume:
V
BOX
= 2.56 ft
3
(net) + 0.11 ft
3
(driver displacement) + port
displacement
(3 woofers common cavity)
Number of Ports:
3
1
Port Diameter:
2.0 in
2.0 in x 4.5 in
(rectangular)
Total Port Area:
3.14 in
2
9.00 in
2
Port Length:
10.17 in/ea.
9.57 in
Port Displacement (total):
.054 ft
3
.050 ft
3
Total Box Volume:
2.72 ft
3
2.72 ft
3
V
BOX
diameter
L
V
E-99
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