Eminence RAMROD

Guitar Speaker

10″ / 254 mm
Nominal diameter
101 Hz
Resonance
0.64
Q factor
99 dB
Sensitivity
± 0.48 mm
Linear excursion
150 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
99.0
dB
Frequency response
80 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
101
Hz
Mechanical quality factor
QMS
10.80
Electrical quality factor
QES
0.68
Total quality factor
QTS
0.64

Large signal parameters

Maximum linear excursion
xmax
0.48
mm
Air volume displaced at xmax
VD
18
cm³
Power handling
P
75
W
Program power
Pmax
150
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.3
Ω
Inductance (1kHz)
LE
0.39
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
11.5
N/A
Motor constant
Bl/√RE
4.26
N/√W
Air gap height
HAG
7.9
mm
Weight
0.85
kg
Material
Ferrite

Diaphragm

Effective diameter
216
mm
Effective area
SD
366
cm²
Moving mass
MMS
19
g
Moving mass (without air load)
MMD
14.1
g
Material
Paper

Suspensions

Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
24.6
L
Mechanical resistance
RMS
1.12
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
10
254
mm
Overall diameter
257
mm
Baffle cutout diameter
232
mm
Overall depth
109
mm
Volume occupied by the driver
1.1
L
Net weight
2.9
kg
Frame material
Pressed steel
Eminence RAMROD SPL & Impedance

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