Audio cable SCP 22/4EPSH-LSZH, copper conductors AWG 22, 4 cores, 305 m, black

SCP 22/4EPSH-LSZH is a four-core balanced audio cable with 22 AWG copper conductors and a 305 m (1000 ft) spool. It is intended for permanent or semi-permanent AV installations where balanced line- and mic-level signals need to be routed with low noise. The cable features individually foil-shielded twisted pairs with drain wires and a heavy-duty LSZH (low smoke, zero halogen) outer jacket for improved safety in enclosed spaces.

Advantages

The cable’s balanced twisted-pair design and individual foil shields provide a high signal-to-noise ratio and help preserve audio fidelity over long runs. The 22 AWG copper conductors are suitable for carrying line- and mic-level signals while the LSZH jacket reduces toxic smoke and halogen emissions in case of fire. The flexible jacket is straightforward to strip and terminate for fixed installation use.

Suitable for

• Balanced line-level and microphone audio connections
• Permanent or semi-permanent AV installations in theatres, studios and conference rooms
• Rack-to-rack and panel cabling where noise rejection is important
• Security, intercom and recording system signal distribution

When it may not be suitable

This cable is designed for signal-level audio (line and mic) and is not intended to carry speaker-level currents or high-power audio loads. Do not use it as a substitute for dedicated speaker cable where higher current capacity and different conductor geometry are required. Also, while the LSZH jacket improves safety in enclosed environments, the cable is intended for fixed installation and not for frequent flexing or portable stage snake use.

Key specifications

• Conductor material: copper
• Conductor size: 22 AWG
• Cores: 4 (two individually foil-shielded twisted pairs with drain wires)
• Shielding: aluminum foil per pair with drain
• Jacket type: LSZH (low smoke, zero halogen), heavy-duty
• Length: 305 m (1000 ft) spool
• Color: gray/black (as supplied)
• Standards: EN50575:2014 Eca (reaction to fire classification)

How to use

Strip the outer LSZH jacket carefully to expose the individually shielded twisted pairs. Terminate each pair to the appropriate balanced input or output (tip/signal + and ring/signal −) and connect the drain/shield to the equipment ground as recommended by the hardware manufacturer. Route the cable in fixed trays, conduits, or tie it within racks for permanent or semi-permanent installations, avoiding sharp bends and sources of electromagnetic interference where possible.

What to consider before purchase

• Intended signal type: line-level or mic-level (not speaker-level)
• Required run length and whether 305 m spool meets project needs
• Installation environment and need for LSZH jacket for fire safety
• Whether individually shielded pairs are required for noise-sensitive runs

Usage recommendations

For best audio fidelity, use this cable for balanced connections between preamplifiers, mixers, recording devices and wall plates; keep cable runs away from high-current power lines and use proper grounding for shields.