ProX 25 FT 4 Conductor SpeakON NL4 Speak Twist to Speak Twist 12AWG High Performance Speaker Cable

Introducing the ProX XC-SS25-4C 25 Ft. 4 Conductor SpeakOn NL4 to SpeakOn NL4 12AWG High Performance Speaker Cable, the professional speaker cable built for systems that demand more than a standard 2 conductor connection. While most speaker cables carry signal on two conductors, the ProX XC-SS25-4C runs four — making it the right cable for bi-amplified speaker systems, passive bi-wired configurations, and any setup where the amplifier and cabinet communicate on more than one signal path. If you are running a system that uses the NL4 SpeakOn format to deliver high and low frequency signals separately to a single cabinet, or connecting a multi-channel amplifier output to a speaker with dedicated woofer and tweeter inputs, this is the cable that makes that connection possible. Built around four 12AWG Oxygen-Free Copper (OFC) conductors and terminated with REAN® by NEUTRIK® RLS4FC NL4 SpeakOn connectors on both ends, the ProX XC-SS25-4C brings professional-grade build quality to a specialized and critical connection in any high-performance live sound rig.

NL4 SpeakOn Connectivity The ProX XC-SS25-4C is terminated on both ends with REAN® by NEUTRIK® RLS4FC NL4 SpeakOn connectors. The NL4 format carries four poles across two signal paths, making it the standard for bi-amp speaker systems, full-range plus subwoofer configurations wired through a single cable, and any amplifier or cabinet that uses the NL4 pin layout for multi-channel signal delivery. The twist-lock design secures firmly into NL4-compatible equipment and resists accidental disconnection under tension on stage.

4 Conductor 12AWG Oxygen-Free Copper At the core of this cable are four 12AWG OFC conductors. The OFC construction keeps resistance low across each conductor, ensuring clean signal delivery on all four poles across the full 25 ft. length. At 12AWG per conductor, this cable handles the high-current demands of professional speaker systems without compromise on either signal path.

Black PVC Jacket The outer jacket is a durable, flexible black PVC construction that holds up through repeated coiling and stage deployment. It maintains flexibility across temperatures, resists kinking, and keeps a low stage profile. The all-black finish blends cleanly into any production environment.

Built for Bi-Amp and Advanced Speaker Systems The ProX XC-SS25-4C is the right choice when a 2 conductor cable simply is not enough. For audio engineers running bi-amplified systems, high-performance speaker cabinets with NL4 inputs, or any rig that requires four conductors in a SpeakOn format, this cable delivers the connection with the build quality that live touring demands.

Designed by Professionals. Built for Performers. Backed by 40 Years of Excellence.

ProX products are designed by a team of seasoned industry professionals who know firsthand what it means when power fails mid-show. Since 1984, ProX has built its reputation on one principle: every product must perform as hard as the professionals who depend on it. We listen to our customers, and their real-world feedback directly shapes the products we bring to market. The ProX XC-SS25-4C is a direct result of that collaboration. When you choose ProX, you are investing in four decades of hands-on expertise and a brand that has never stopped raising the standard for live performance gear.

• REAN® by NEUTRIK® RLS4FC NL4 SpeakOn connectors on both ends for secure, twist-lock 4 pole speaker connections
• 4 conductor 12AWG Oxygen-Free Copper (OFC) core for low resistance across all four poles
• NL4 format supports bi-amplified systems, passive bi-wired cabinets, and multi-channel amplifier to speaker connections
• 25 ft. cable length suited for stage and studio bi-amp speaker runs
• High-current speaker cable only — not intended for line-level signal applications
• Durable black PVC outer jacket built for flexibility and touring use
• Resists kinking and bending fatigue through repeated coiling and deployment
• ProX Limited Warranty

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