Speaker cable HELUSOUND® 450 EXTREME FLEX PVC 8x4 mm² black, colored conductors 11017573

Professional speaker cable for demanding applications

This flexible HELUSOUND® 450 EXTREME FLEX speaker cable is a solid choice for both professional installers and users who need a reliable connection in audio systems. It is perfect for concerts, outdoor events, recording studios or cinemas – anywhere where sound quality and resistance to external conditions matter.

Construction and properties

The cable is made of multi-strand copper conductors with increased flexibility (class 6), which translates into exceptional flexibility and easy installation even in difficult conditions. The conductors are insulated with PVC and available in an 8-core configuration with clear color coding (red, black, blue, white, green, yellow, grey, purple), which facilitates identification during installation. Twisting the conductors with an optimal pitch minimizes interference and ensures stable signal transmission. The whole is surrounded by a durable black PVC jacket (RAL 9005).

Additionally, the cable is characterized by high resistance to UV radiation, making it an ideal solution for outdoor applications. The ability to operate in a wide temperature range – from -30°C to +70°C (flexible) and from -40°C to +70°C (stationary) – guarantees reliable operation in various environmental conditions. The cable meets the IEC 60332-1-2 standard for flame retardancy of a single cable and has a PWIS certificate: VW PV 3.10.7.

Practical advantages and applications

• Exceptional flexibility: Allows easy installation even in tight spaces and with complex cable routes.
• Weather resistance: Ideal for outdoor and temporary installations (outdoor events).
• Clear conductor color coding: Facilitates identification and reduces installation time.
• Wide operating temperature range: Ensures reliable operation in various environmental conditions.
• Low conductor resistance: Guarantees minimal signal loss and high sound quality – resistance for a cross-section of 4 mm² is a maximum of 4.95 Ohm/km.
• Applications: stage performances, music events, recording studios, cinemas, theatres and conference systems.
• Minimum bending radius: flexible 8 x cable diameter; for fixed installation 5 x cable diameter – allows adaptation to the specifics of the installation.