8" | CX8F140
Coaxial Ferrite-Neodymium Driver
Key features:
- LF AND HF INTEGRATED FERRITE-NEODYMIUM MAGNETIC CIRCUIT
- ALUMINUM SYMMETRICAL HORN
- GOOD OFF-AXES FREQUENCY RESPONSE
Design notes:
The CX8F-140F is a high efficiency, (95dB 1watt / 1 meter) 8-inch coaxialspeaker with very linear frequency responsecharacteristics and high power handling capability. The mid-woofer utilizes REDCATTdeveloped paper pulp cone that has proven its performance in many ours successfuldesigns. The HF section was designedaround our most successful dome assemblyas used in 140FCD and has integrated symmetrical aluminum horn. The combinationof used materials with our state of the artquality production yields in well performingdriver even in the most demanding andextreme weather conditions.Magnetic circuit designREDCATT engineers have developedferrite-neodymium based magnetic circuit,capable of delivering the highest level ofperformance in a small form factor. Thecombination of ferrite and neodymium delivers an excellent magnetic performance.The magnetic circuit design is optimizedto generate the minimum amount of fluxmodulation, providing exceptional stability.Aluminum demodulation ring is assembledin the HF section.
Specifications:
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General specs |
Nominal Diameter: |
8 in. |
Rated Impedance: |
8 / 8 Ohm |
Power handling(LF/HF) |
AES Power: |
150 / 30 Watts |
Program Power: |
300 / 60 Watts |
Peak Power: |
600 / 120 Watts |
Voice Coil(LF/HF) |
Diameter: |
1.95 / 1.4 in. |
Winding wire: |
CCAW / CCAW |
Former: |
SIL / kapton |
Winding height: |
12 mm |
-
T/S Parameters(LF/HF) |
Resonant frequency: |
105 / 1,000 Hz |
Re: |
5.5 / 5.5 ohm |
Qes: |
0.63 |
Qms: |
9.06 |
Qts: |
0.59 |
Vas: |
10.7 liters |
Sd: |
213.8 cm2 |
Mms: |
20.1 grams |
Bl: |
9.93 |
Le: |
0.47 mH |
Sensitivity: |
92.44 / 103 dB |
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Design details(LF/HF) |
Surround Material: |
Fabric / Polymer |
Cone material: |
Paper / Polymer |
Spider: |
Conex |
Plate thickness: |
8 mm |
Peak to peak linear cone Displacement |
n/a mm |
Overall diameter: |
207 mm |
Bolt circle diameter: |
197.2 mm |
Baffle cutout dia.: |
178 mm |
Number of mounting holes: |
8 |
Depth (flange to rear): |
107.5 mm |
Net weight: |
2.8 kg |
Ordering codes: |
4 ohm version: |
CX8-140FX4X8-374 |
8 ohm version: |
CX8-140FX8X8-374B |
16 ohm version: |
n/a |
Recone kits: |
4 ohm version: |
n/a |
8 ohm version: |
n/a |
16 ohm version: |
n/a |
Frequency response & lmpedance
2D drawing