EDGE8CXP - Axiom Pro Audio
3. Technical specifications
EDGE8CXP
Features
• Compact speaker system with a symmetric coverage of 85◦
• Co-axial design
Description
The EDGE8CXP is a diffusion system with
the characteristics of being truly compact and versatile. The custom made coaxial speaker has been developed on the
specifics of the PROEL Research and Design laboratory. The results have been
aimed at producing the best performance
from an 8” woofer combined with a 1”
driver. The woofer is comprised of an
ISV (Interleaved Sandwich Voice Coil)
and an aluminium casing. The double
ventilated die-cast basket has been designed the have improved heat dissipation
and thereby reduce the power compression level. The compression driver provides better excursion control and reduces
distortion through use of Ferro-fluid. The diaphragm has been constructed with
a new synthetic material which, together with the reinforced radius design increases the rigidity and thereby avoiding the formation of uncontrolled vibrations. The phase plug is the result of a meticulous study and has been designed
using 3D CAD software to realise a shape that guarantees a correct acoustic
impedance which reduces dramatically the levels of distortion. The pressed Aluminium voice coil assures low distortion and high efficiency with good power
handling. The EDGE8CXP has an internal 12dB per octave passive crossover
with a PTC electronic protection. Version with 100 V constant voltage line
transformer is also available, EDGE8CXTB black and EDGE8CXTW white.
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EDGE8CXP
Technical Characteristics
System
System Type
Frequency Response
Coverage Angle H. (-6 dB)
Coverage Angle V. (-6 dB)
Directivity Index (DI)
Maximum Peak Output
Input Power Rating
Sensitivity
Nominal Impedance
Constant voltage transformer
Transducers
Low Frequency Device
High Frequency Device
Mechanical Data
Construction
Color
Flying Points
Mounting Pole
Dimensions (WxHxD)
Weight
coaxial 2-way vented enclosure
80 Hz - 20 kHz (±6 dB)
85◦ averaged, 1 kHz to 20 kHz
85◦ averaged, 1 kHz to 20 kHz
9.7 averaged, 1 kHz to 20 kHz
121 dB @ 1m
225 W AES, 450 W program
95 dB SPL ( 2.83 V @ 1m )
8Ω
optional 100 V EDGE8CXTB black,
EDGE8CXTW white
8” woofer - 2” voice coil
1” compression driver - coaxial
monitor taper 45◦
15 mm birch plywood
with paint finish
black EDGE8CXPB, white EDGE8CXPW
4 x M10 - top, bottom, rear
1 x bottom
26 x 33 x 28 cm
10 kg
Architects’ and Engineers’ Specifications
The system shall passive two way with a frequency response of 80 Hz to 20 kHz
and with a constant coverage angle of 85◦ H x 85◦ V. The system shall have an
8 ohm driver with a 1” diaphragm and a power handling of 75 W AES set
co-axially to the woofer. The system shall have an 8”, 8 ohm woofer with
a 2” voice coil and a power handling of 225 W AES, loaded in a bass reflex
configuration. The system shall be provided with 4 x M10 hanging points
and shall feature a top-hat pole mounting system. The speaker box shall be
constructed from 15 mm Birch plywood in an asymmetric trapezoid shape with
a monitor angle of 45◦ . The height shall be 32 cm, width 26 cm and depth of
28 cm. The system shall be the Proel EDGE8CXP.
39
3. Technical specifications
Dimensions
Connections
2 Neutrik Speakon NL4MP connectors in parallel.
1+
2-
12+
40
1+
IN+
1-
IN-
2+
2-
EDGE8CXP
Graphics
Frequency response:
10
0
SPL [dB]
−10
−20
−30
−40
31.5
63
125
250
500
1k
Frequency [Hz]
2k
4k
8k
16k
31.5
63
125
250
500
1k
Frequency [Hz]
2k
4k
8k
16k
Directivity index:
DI [dB]
20
10
0
Beamwidth diagram (-6 dB):
210
horizontal
vertical
180
Angle [degrees]
150
120
90
60
30
0
31.5
63
125
250
500
1k
Frequency [Hz]
2k
4k
8k
16k
41
3. Technical specifications
Attenuation map (horizontal):
0
80
60
−5
40
angle [degrees]
−10
20
0
−15
−20
−20
−40
−60
−25
−80
250
−30
20000
frequency [Hz]
Polar diagram (horizontal):
0°
30°
0°
−30°
30°
−12
−60°
60°
−60°
−36
−36
90°
−90°
120°
200Hz
250Hz
315Hz
400Hz
90°
−90°
120°
−120°
150°
150°
−150°
−150°
−180°
0°
0°
−30°
30°
−12
−30°
−12
60°
−60°
60°
−60°
−36
−36
90°
−90°
120°
−120°
150°
500Hz
630Hz
800Hz
1kHz
−120°
−180°
30°
−30°
−12
60°
1.25kHz
1.6kHz
2kHz
2.5kHz
90°
−90°
120°
−150°
3.15kHz
4kHz
5kHz
6.3kHz
−120°
150°
−180°
−150°
−180°
0°
30°
−30°
−12
60°
−60°
−36
90°
−90°
120°
−120°
150°
−150°
−180°
42
8kHz
10kHz
12.5kHz
16kHz
EDGE8CXP
Attenuation map (vertical):
0
80
60
−5
40
angle [degrees]
−10
20
0
−15
−20
−20
−40
−60
−25
−80
250
−30
20000
frequency [Hz]
Polar diagram (vertical):
90°
90°
120°
60°
150°
120°
30°
−180°
−36
0°
−12
−150°
200Hz
250Hz
315Hz
400Hz
−30°
−120°
30°
−180°
−36
−60°
500Hz
630Hz
800Hz
1kHz
−30°
−120°
−60°
−90°
90°
90°
120°
60°
150°
120°
30°
−36
−12
−150°
60°
150°
0°
−30°
−120°
0°
−12
−150°
−90°
−180°
60°
150°
1.25kHz
1.6kHz
2kHz
2.5kHz
30°
−180°
−36
−150°
−60°
0°
−12
3.15kHz
4kHz
5kHz
6.3kHz
−30°
−120°
−90°
−60°
−90°
90°
120°
60°
150°
30°
−180°
−36
−12
−150°
0°
8kHz
10kHz
12.5kHz
16kHz
−30°
−120°
−60°
−90°
43
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