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Type
SubwooferWooferMid BassMid-rangeFull-rangeCoaxial2 Way2 Way Kit3 WayBass Guitar SpeakerGuitar SpeakerLow frequencyMiniatureShallow SubwooferShallow WooferShallow Mid-WooferTriaxial
Available on
Amazon.comParts Express
•
Nominal diameter
″
•
SensitivitySPL1W
dB

Thiele & Small parameters

•
Resonance frequencyfS
Hz
•
Mechanical quality factorQMS
•
Electrical quality factorQES
•
Total quality factorQTS

Large signal parameters

•
Maximum linear excursionxmax
mm
•
Air volume displaced at xmaxVD
cm³
•
Program powerPmax
W

Voice Coil & Magnet

•
Nominal impedanceZ
Ω
•
DC resistanceRE
Ω
•
Force factorBl
N/A
•
Motor constantBl/√RE
N/√W
•
InductanceLE
mH
•
VC Diameter
mm

Diaphragm

•
Effective diameter
mm
•
Effective areaSD
cm²
•
Moving massMMS
g

Suspensions

•
StiffnessKMS
N/mm
•
ComplianceCMS
µm/N
•
Equivalent volume to CMSVAS
L
•
Mechanical resistanceRMS
N·s/m

Dimensions

•
Overall size
mm
•
Baffle cutout diameter
mm
•
Overall depth
mm
•
Mounting depth
mm
•
Volume occupied
L
•
Net weight
kg
Focal 65 SF Mid-range

Focal 65 SF

4 Ω
2.5″ Mid-range
fS230 Hz
SD22 cm²
250 - 11000 Hz
QTS1.00
xmax2 mm
SPL1W83.4 dB
Bl/√RE1.73
Pmax80 W
Focal C 165 SF 2 Way

Focal C 165 SF

4 Ω
6.5″ 2 Way
fS67 Hz
SD132 cm²
60 - 21000 Hz
QTS0.58
xmax4 mm
SPL1W89.4 dB
Bl/√RE2.87
Pmax160 W
Focal 165 SF Woofer

Focal 165 SF

4 Ω
6.5″ Woofer
fS66.8 Hz
SD132 cm²
60 - 2000 Hz
QTS0.60
xmax4 mm
SPL1W89 dB
Bl/√RE2.92
Pmax160 W
Focal 200 SF Woofer

Focal 200 SF

4 Ω
8″ Woofer
fS46 Hz
SD201 cm²
50 - 1000 Hz
QTS0.55
xmax4 mm
SPL1W91 dB
Bl/√RE2.74
Pmax160 W
Focal SUB 20 SF Subwoofer

Focal SUB 20 SF

4 Ω
8″ Subwoofer
fS36 Hz
SD202 cm²
QTS0.39
xmax10 mm
SPL1W83 dB
Bl/√RE7.05
Pmax400 W
FaitalPRO 12FE400 4Ω Subwoofer

FaitalPRO 12FE400 4Ω

4 Ω
12″ Subwoofer
fS55 Hz
SD549 cm²
55 - 4000 Hz
QTS0.52
xmax5.4 mm
SPL1W94.4 dB
Bl/√RE5.61
Pmax400 W
Dayton Audio PCS115-4 Woofer

Dayton Audio PCS115-4

4 Ω
4″ Woofer
fS88 Hz
SD51.5 cm²
60 - 5000 Hz
QTS0.79
xmax2.8 mm
SPL1W83.5 dB
Bl/√RE1.9
Pmax40 W
Dayton Audio PCS115-8 Woofer

Dayton Audio PCS115-8

8 Ω
4″ Woofer
fS87 Hz
SD51.5 cm²
60 - 6000 Hz
QTS0.84
xmax3.5 mm
SPL1W82.2 dB
Bl/√RE1.76
Pmax40 W
Dayton Audio PCS175-4 Woofer

Dayton Audio PCS175-4

4 Ω
6.5″ Woofer
fS56 Hz
SD143 cm²
50 - 5000 Hz
QTS0.98
xmax2 mm
SPL1W85.9 dB
Bl/√RE2.49
Pmax60 W
Dayton Audio PCS175-8 Woofer

Dayton Audio PCS175-8

8 Ω
6.5″ Woofer
fS56 Hz
SD143 cm²
50 - 5300 Hz
QTS0.83
xmax2.3 mm
SPL1W85.9 dB
Bl/√RE2.18
Pmax60 W
STX F.18.140.4.MCX Full-range

STX F.18.140.4.MCX

4 Ω
8″ Full-range
fS49 Hz
SD133 cm²
50 - 20000 Hz
QTS0.71
xmax4 mm
SPL1W86.5 dB
Bl/√RE1.84
Pmax140 W
STX F.18.140.4.WMCX Full-range

STX F.18.140.4.WMCX

4 Ω
8″ Full-range
fS52 Hz
SD133 cm²
50 - 20000 Hz
QTS0.71
xmax4 mm
SPL1W86.9 dB
Bl/√RE1.88
Pmax140 W
STX F.18.140.8.MCX Full-range

STX F.18.140.8.MCX

8 Ω
6.5″ Full-range
fS51 Hz
SD133 cm²
50 - 20000 Hz
QTS0.79
xmax4 mm
SPL1W86.6 dB
Bl/√RE1.68
Pmax140 W
STX F.18.140.8.WMCX Full-range

STX F.18.140.8.WMCX

8 Ω
8″ Full-range
fS54 Hz
SD133 cm²
50 - 20000 Hz
QTS0.81
xmax4 mm
SPL1W86.5 dB
Bl/√RE1.68
Pmax140 W
STX F.30.300.8.MC Full-range

STX F.30.300.8.MC

8 Ω
12″ Full-range
fS55 Hz
SD490 cm²
50 - 15000 Hz
QTS1.51
xmax4 mm
SPL1W89.6 dB
Bl/√RE2.87
Pmax300 W
STX M.11.100.8.MC Mid-range

STX M.11.100.8.MC

8 Ω
4.5″ Mid-range
fS110 Hz
SD57 cm²
150 - 15000 Hz
QTS1.12
xmax1 mm
SPL1W87.9 dB
Bl/√RE1.15
Pmax100 W
STX M.12.140.8.MC Mid-range

STX M.12.140.8.MC

8 Ω
4.5″ Mid-range
fS88 Hz
SD57 cm²
100 - 15000 Hz
QTS0.85
xmax1.5 mm
SPL1W84 dB
Bl/√RE1.57
Pmax140 W
STX M.12.140.8.WMC Mid-range

STX M.12.140.8.WMC

8 Ω
4.5″ Mid-range
fS95 Hz
SD57 cm²
100 - 15000 Hz
QTS0.88
xmax1.5 mm
SPL1W84.9 dB
Bl/√RE1.52
Pmax140 W
STX M.15.150.8.MCX Mid-range

STX M.15.150.8.MCX

8 Ω
6″ Mid-range
fS70 Hz
SD87 cm²
150 - 15000 Hz
QTS0.61
xmax2 mm
SPL1W86.5 dB
Bl/√RE1.99
Pmax150 W
STX M.15.250.8.FCX Mid-range

STX M.15.250.8.FCX

8 Ω
6″ Mid-range
fS58 Hz
SD95 cm²
100 - 10000 Hz
QTS0.30
xmax2.3 mm
SPL1W88.6 dB
Bl/√RE3.7
Pmax250 W
STX M.16.120.8.MC Mid-range

STX M.16.120.8.MC

8 Ω
6.5″ Mid-range
fS95 Hz
SD143 cm²
100 - 8000 Hz
QTS1.46
xmax1 mm
SPL1W89.7 dB
Bl/√RE1.48
Pmax120 W
STX M.18.140.8.MC Mid-range

STX M.18.140.8.MC

8 Ω
8″ Mid-range
fS53 Hz
SD143 cm²
70 - 10000 Hz
QTS0.67
xmax1.5 mm
SPL1W87.4 dB
Bl/√RE2.06
Pmax140 W
STX M.18.140.8.WMC Mid-range

STX M.18.140.8.WMC

8 Ω
8″ Mid-range
fS51 Hz
SD143 cm²
70 - 10000 Hz
QTS0.69
xmax1.5 mm
SPL1W88 dB
Bl/√RE1.88
Pmax140 W
STX M.18.200.8.MCX Mid-range

STX M.18.200.8.MCX

8 Ω
8″ Mid-range
fS70 Hz
SD143 cm²
150 - 10000 Hz
QTS0.45
xmax3 mm
SPL1W89.6 dB
Bl/√RE3.1
Pmax200 W
STX W.11.100.8.MC Mid Bass

STX W.11.100.8.MC

8 Ω
4.5″ Mid Bass
fS84 Hz
SD57 cm²
80 - 15000 Hz
QTS0.70
xmax3 mm
SPL1W83.2 dB
Bl/√RE1.75
Pmax100 W
STX W.12.100.8.MC Mid Bass

STX W.12.100.8.MC

8 Ω
4.5″ Mid Bass
fS76 Hz
SD57 cm²
70 - 15000 Hz
QTS0.74
xmax4 mm
SPL1W83.6 dB
Bl/√RE1.57
Pmax100 W
STX W.12.100.8.WMC Mid Bass

STX W.12.100.8.WMC

8 Ω
4.5″ Mid Bass
fS77 Hz
SD57 cm²
70 - 15000 Hz
QTS0.70
xmax4 mm
SPL1W83.7 dB
Bl/√RE1.57
Pmax100 W
STX W.15.140.8.MCX Mid Bass

STX W.15.140.8.MCX

8 Ω
6″ Mid Bass
fS45 Hz
SD87 cm²
50 - 10000 Hz
QTS0.36
xmax4 mm
SPL1W86.7 dB
Bl/√RE2.26
Pmax140 W
STX W.15.160.16.FCX Mid Bass

STX W.15.160.16.FCX

16 Ω
6″ Mid Bass
fS38 Hz
SD95 cm²
30 - 10000 Hz
QTS0.36
xmax5.3 mm
SPL1W87.1 dB
Bl/√RE2.41
Pmax160 W
STX W.15.160.8.FCX Woofer

STX W.15.160.8.FCX

8 Ω
6″ Woofer
fS37 Hz
SD95 cm²
30 - 10000 Hz
QTS0.35
xmax5.3 mm
SPL1W86.4 dB
Bl/√RE2.61
Pmax160 W
STX W.16.50.4.MC Mid Bass

STX W.16.50.4.MC

4 Ω
6.5″ Mid Bass
fS66 Hz
SD143 cm²
50 - 8000 Hz
QTS1.01
xmax3 mm
SPL1W86.9 dB
Bl/√RE1.85
Pmax50 W
STX W.16.50.8.MC Mid Bass

STX W.16.50.8.MC

8 Ω
6.5″ Mid Bass
fS59 Hz
SD143 cm²
50 - 8000 Hz
QTS1.07
xmax3 mm
SPL1W86.1 dB
Bl/√RE1.35
Pmax50 W
STX W.18.140.4.MCX Low frequency

STX W.18.140.4.MCX

4 Ω
8″ Low frequency
fS40 Hz
SD143 cm²
40 - 8000 Hz
QTS0.36
xmax4 mm
SPL1W88 dB
Bl/√RE3.03
Pmax140 W
STX W.18.140.4.WMCX Mid Bass

STX W.18.140.4.WMCX

4 Ω
8″ Mid Bass
fS40 Hz
SD143 cm²
40 - 8000 Hz
QTS0.37
xmax4 mm
SPL1W87.8 dB
Bl/√RE3.14
Pmax140 W
STX W.18.140.8.MCX Low frequency

STX W.18.140.8.MCX

8 Ω
8″ Low frequency
fS37 Hz
SD143 cm²
40 - 8000 Hz
QTS0.39
xmax4 mm
SPL1W87.2 dB
Bl/√RE2.7
Pmax140 W
STX W.18.140.8.WMCX Mid Bass

STX W.18.140.8.WMCX

8 Ω
8″ Mid Bass
fS38 Hz
SD143 cm²
40 - 8000 Hz
QTS0.40
xmax4 mm
SPL1W87.1 dB
Bl/√RE2.64
Pmax140 W
STX W.18.180.16.FCX_v2 Mid Bass

STX W.18.180.16.FCX_v2

16 Ω
8″ Mid Bass
fS37 Hz
SD125 cm²
40 - 10000 Hz
QTS0.36
xmax6.3 mm
SPL1W87.6 dB
Bl/√RE2.85
Pmax180 W
STX W.18.180.8.FCX_v2 Mid Bass

STX W.18.180.8.FCX_v2

8 Ω
8″ Mid Bass
fS36 Hz
SD125 cm²
40 - 10000 Hz
QTS0.35
xmax6.3 mm
SPL1W87.5 dB
Bl/√RE3.03
Pmax180 W
STX W.18.200.8.FGX_v3 Mid Bass

STX W.18.200.8.FGX_v3

8 Ω
8″ Mid Bass
fS35 Hz
SD133 cm²
40 - 8000 Hz
QTS0.36
xmax6 mm
SPL1W86.3 dB
Bl/√RE3.04
Pmax200 W