3 results
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
Hertz MPX 690.3 PRO 3 Way

Hertz MPX 690.3 PRO

4 Ω
6 x 9 3 Way
fS50 Hz
SD223 cm²
30 - 24000 Hz
QTS0.43
xmax4 mm
SPL1W89.4 dB
Bl/√RE4.16
Pmax260 W
Hertz CX 690 3 Way

Hertz CX 690

4 Ω
6 x 9 3 Way
fS70 Hz
SD152 cm²
40 - 23000 Hz
QTS0.67
xmax3.5 mm
SPL1W89.2 dB
Bl/√RE2.7
Pmax200 W
Hertz CPX 690 PRO 3 Way

Hertz CPX 690 PRO

4 Ω
6 x 9 3 Way
fS60 Hz
SD232 cm²
35 - 24000 Hz
QTS0.61
xmax5 mm
SPL1W89.3 dB
Bl/√RE3.57
Pmax360 W