18 Sound 8CX650

Features

☑ 91 dB LF/106 dB HF SPL 1W/1m average sensitivity
☑ Single magnet motor
☑ 400W LF - 140W HF maximum program power Handling
☑ 65 mm (2.5”) Edge wound Aluminum LF voice coil (EWAL)
☑ 44 mm (1.75”) HF PEN diaphragm
☑ Proprietary Phase Plug design
☑ HF copper sleeve for reduced distortion and higher output
☑ 90 degrees nominal conical dispersion
☑ Atmos™ ready
☑ Extended LF design
☑ Suitable for very compact enclosures and stage monitors

The 8CX650 is a 8" - 1" coaxial transducer designed for use in compact reflex enclosures and stage monitors as small as 30 lt, with a nominal dispersion of 90 degrees.
The high force ceramic single magnet structure makes the 8CX650 a lightweight speaker for its performance class - only 5,5 kg (12 lb).
The 65 mm (2.5 in) LF edgewound CCAW voice coil employs our Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglass former carries windings on both the outer and inner surfaces to achieve a balanced coil with a uniform distribution of mass and motion energy. This results in an extremely linear motor assembly.
The low-profile smooth straight LF cone provides a smooth response within its intended frequency range and maximum reliability under high mechanical stress.
Equipped with a proprietary hybrid radial tangerine phase plug, the integrated HF compression driver has been designed to deliver a smooth coherent wavefront at the horn entrance in all working frequency ranges with a high level of manufacturing consistency. The phase plug, with its short openings and high flare rate value, assures low distortion and remarkable improvements in mid-high frequency reproduction. A copper sleeve reduces inductance value above 10kHz, improving phase and impedance linearization.
The HF diaphragm assembly is made by proprietary treated Polyethylene material. Thanks to its superior diaphragm dimensional stability, Polyethylene shows constant behavior during its whole working life. Moreover, this particular material with its very high value of elasticity modulus is capable of superior transient and intermodulation distortion response. The flat suspension shape is designed to maintain low stiffness and low mid-band distortion and response.
An edge-wound aluminum voice coil wound on proprietary treated Nomex completes the diaphragm assembly. Thanks to its physical properties, the proprietary treated Nomex former shows a 30% higher value of tensile elongation at a working operative temperature when compared to Kapton. This feature enables proper energy transfer control from the voice coil to the dome in real working conditions. Moreover, this proprietary former material is suitable for use in damp and wet environments.
A specific dedicated HF driver throat design has also been chosen, maximizing the cone’s profile coupling.