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FEA motor optimized
25.5 mm voice coil
Copper and aluminum voice coil
Aluminum former
Large neodymium magnet
TM
NPPV
CNC aluminum basket
Rubber surround
Conex
Computer optimized design
Motor metal parts CNC machined
exponential cone
TM
progressive spider
8075
3”/75 MM CONE MIDRANGE
Neodymium magnet motor is optimized with FEA simulation to ensure perfectly symmetrical magnetic flux in both directions
of the cone’s run. Motor metal parts are CNC machined from solid and refined material for maximum magnetic flux linearity
and minimum magnetic loss. This reduces distortion at high power levels.
25.5 mm CCAW (Copper Clad Aluminum Wire) double layer voice coil is wound on an aluminum former for exceptional
power handling and compression-free reproduction, for even the most demanding musical passages.
Non pressed cellulose pulp exponential cone has a vinylester resin coating, ensuring a perfect balance between rigidity, weight,
and self-damping. The cellulose pulp guarantees an extremely natural and linear reproduction in all musical passages, with an
excellent extension at high frequencies without audible break-up. An aluminum dust cup fixed directly on voice coil former,
increases and linearizes the extreme top of bandwidth.
The CNC aluminum basket ensures a drastic reduction of the cone’s back reflections and a great torsional rigidity. High structural
and torsional rigidity are a goal for perfect parts alignment, this requires very tight tolerances in the construction and assembling
system. That brings better efficiency, more power handling and less distortion.
The exclusive rubber surround offers maximum linearity of travel and high reliability in extreme conditions. The axial ventilation
system ensures high thermal dissipation capacity, power handling and reliability.
Large Conex™ spider allows a smooth and gentle run at low excursions, and gently holds the cone at high excursions, this
increases the useful range of use.
Exclusive terminal connection design can accept very large cables.
Terminal 2xØ4
4 holes Ø4 at 90° on Ø92.5
Mounting hole Ø78
38 7
REAR
FRONT
Height 86
Overall diam. Ø108
Ø79
Max screw head Ø7
All measurements in millimeters
01
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8075
3”/75 MM CONE MIDRANGE
RESPONSE
IMPEDANCE
SPEC IF ICATI ONS
100 50.00
90 40.00
80 30.00
70 20.00
60 10.00
50 0.00
10 20
Symbol
Value
50 100 200 500 1k 2k 5k 10k 20k10 Hz
Units
10
CLIO
Ohm
mm
P
Pp
SP L
120
240
91
W
W
Hz
0
-10
Efficiency
Fc
L
C
R
S
In ductor
Capacitor
Resistance
Z
Lb m
Dia
h
HE
Xm ax
n
BxL
m
Cm s
Qm s
Qes
Qts
Rm s
mms
VAS
Fs
SD
°
377
±5.7
Aluminum
45x29x5
4
3. 3
0.34
25.5
5. 7
4. 0
0. 26
3.83
37
0.8
0.36
2.45
0.95
113
29
2
4.76
0.42
0.39
g
µH
mm
mm
mm
mm
%
Na
mm
g
N/m
g
l
Hz
2
cm
Hz
mH
µF
dB/Oct
+
IN PUT
+
IN PUT
-20
-30
20
0. 9
1
0. 45
1
R
L
C
Fc
200
113
115
-
-
250
300
2. 5
2. 5
350
400
450
00200105
11.5
9. 5
500
S
C
100
Fc
1800
110
2000
105
2200
95
2400
90
2600
84
2800
77
3000
3300
3600
S
L
0. 4
0. 35
0. 32
0. 3
0. 28
0. 26
0. 25
Att.R-2
1. 1-42. 2-65-98
C1
L1
200
Fc
250
300
350
400
450
500
R
-12
14
0. 22
0. 21
S
74
3. 7
2200
67
3
2400
C1
L2
C2
L2
Fc
8. 3
1800
5. 2
2000
77
76
65
2. 4
2600
60
2. 1
2800
55
1. 8
3000
3300
3600
S
L1
C2
0. 5
14
0. 49
12
0. 46
11
0. 42
10
0. 4
9. 5
0. 37
8. 7
0. 34
8
0. 32
7. 2
0. 3
6. 3
02
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