Audio installation cable SCP SP-2.5/4-LSZH-BK — OFC AWG14, 152 m, Black

SCP SP-2.5/4-LSZH-BK is a low-smoke, zero-halogen audio installation cable designed for fixed speaker and signal runs. The cable features oxygen-free copper (OFC) conductors with a 2.5 mm² equivalent construction (50×0.25) and an AWG14-sized stranded core. Supplied on a 152 m reel in black, the cable is intended for installations where reduced smoke and halogen emissions and reliable low-loss audio transmission are required.

Advantages

The cable combines oxygen-free stranded copper for consistent conductivity and low signal loss with a double-insulated twisted-pair construction that improves noise rejection. Its LSZH (low smoke zero halogen) jacket reduces harmful emissions in case of fire and the jacket is designed for easy stripping to speed up installation. The stranded construction also provides good flexibility for routing and handling in confined or complex runs.

Suitable for (tasks / use cases)

• Fixed speaker wiring in venues, halls, and commercial spaces
• Audio signal runs between amplifiers and loudspeakers
• Permanent installations where fire-safety low smoke/zero halogen standards are required
• Environments requiring flexible cable routing through conduits and trunking

When it may not be suitable

This cable is intended for fixed installation use and is not designed as a flexible free-moving patch or portable stage cable for repeated flexing. For applications that require very long runs beyond typical installer practices, check impedance and power loss to ensure acceptable performance at the required distance. The product information does not specify individual conductor shielding, so in environments with heavy electromagnetic interference you may need screened cable options.

Key specifications

• Conductor: oxygen-free copper, stranded (50 × 0.25 mm)
• Conductor cross-sectional area: 2.5 mm² equivalent / AWG14
• Construction: double insulated twisted pair
• Cable jacket: Low Smoke Zero Halogen (LSZH)
• Length: 152 m reel
• Colour: black
• Flexibility: designed for improved flexibility compared to solid conductor cables
• Reaction-to-fire rating: EN50575 – B2ca-s1a,d1,a1

How to use

Plan the run and measure needed lengths from amplifier to speakers, allow extra for routing and terminations. Cut the cable to length and use appropriate tools to strip the outer jacket and insulation without nicking the conductors. Follow standard polarity practice when terminating to speakers and amplifiers. Use proper connectors (e.g., banana plugs, spade lugs, or screw terminals) and secure the cable in place with clamps or cable ties in accordance with installation regulations. Test continuity and audio signal after installation to confirm correct wiring and performance.

What to consider before purchase

• Confirm that 152 m length meets your installation needs or plan for additional reels
• Verify that double-insulated twisted-pair construction and lack of overall shield are suitable for your EMI environment
• Ensure AWG14 / 2.5 mm² conductor size provides acceptable voltage drop and power handling for speaker distance and amplifier power
• Check building fire-safety requirements to confirm EN50575 B2ca rating and LSZH jacket meet local codes

Usage recommendations

For best results use this SCP OFC LSZH cable for permanent speaker and audio signal installations in public and commercial buildings where reduced smoke and halogen emissions are required. Avoid repeated flexing and consider screened cable variants for high-EMI areas.