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, (92.5dB 1watt / 1 meter) 8-inch coaxial speaker with very linear frequency response characteristics and high power handling capability. The mid-woofer utilizes REDCATT developed paper pulp cone that has proven its performance in many ours successful designs. The HF section was designed around our most successful dome assembly as used in 140FCD and has integrated symmetrical aluminum horn. The combination of used materials with our state of the art quality production yields in well performing driver even in the most demanding and extreme weather conditions.
Magnetic circuit design
REDCATT engineers have developed ferrite-neodymium based magnetic circuit, capable of delivering the highest level of performance in a small form factor. The combination of ferrite and neodymium delivers an excellent magnetic performance. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability. Aluminum demodulation ring is assembled in the HF section.
Specifications:
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General specs |
Nominal Diameter: |
8 in. |
Rated Impedance: |
8 / n/a 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: |
2 / 1.4 in. |
Winding wire: |
CCAW / |
Former: |
Glass Fiber / kapton |
Winding height: |
12 mm |
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T/S Parameters(LF/HF) |
Resonant frequency: |
86 / 1,000 Hz |
Re: |
5.6 / 5.5 ohm |
Qes: |
0.63 |
Qms: |
9.06 |
Qts: |
0.59 |
Vas: |
n/a liters |
Sd: |
n/a cm2 |
Mms: |
20.2 grams |
Bl: |
9.93 |
Le: |
0.47 mH |
Sensitivity: |
94 / n/a dB |
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Design details(LF/HF) |
Surround Material: |
Fabric / Polymer |
Cone material: |
Paper / Polymer |
Spider: |
Nomex |
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 |
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Frequency response & lmpedance
2D drawing