Speaker cable ProBase PBA250, professional 2×2.50 mm², 100 m reel

ProBase PBA250 is a professional speaker cable supplied on a 100 m reel with twin 2×2.50 mm² conductors. Designed for fixed audio installations and live sound, this cable provides consistent conductor geometry and flexible insulation to simplify routing, termination and long runs between amplifiers and loudspeakers. The construction supports reliable low-impedance signal transfer for PA systems, stage monitoring and permanent venue installs where durable, uniform performance is required.

Advantages

The twin 2×2.50 mm² conductors offer a balance of current-carrying capacity and flexibility, reducing voltage drop over moderate distances while remaining easy to handle on reels. Flexible PVC insulation and a round jacket improve cable management in conduits and across stages. Consistent conductor size and clear polarity marking facilitate fast, error-free terminations. The 100 m reel format reduces the number of joins in long runs and speeds up installation in venues or rehearsal spaces.

Suitable for

• Public address (PA) systems in halls and auditoriums
• Stage and live event speaker connections
• Fixed installations in clubs, restaurants and houses of worship
• Studio monitor feeds and rehearsal room setups
• Temporary event cabling where long, continuous runs are required

Key specifications

• Conductor configuration: twin conductors, each 2.50 mm² cross-sectional area
• Cable length per reel: 100 m
• Insulation material: flexible PVC (single or multi-layer jacket dependent on batch)
• Cable geometry: round twin-core design for easier handling and routing
• Application category: speaker / low-impedance audio connections for PA and live sound

How to use

Measure and cut the required length from the 100 m reel, allowing service loop where necessary. Strip the outer jacket and expose the individual conductors, taking care not to nick the copper. Identify polarity using the jacket marking or conductor identification, then terminate with appropriate speaker connectors, banana plugs, spade lugs or screw terminals according to amplifier and loudspeaker requirements. Route the cable to avoid sharp bends, heat sources and high-voltage power runs to minimize interference and mechanical stress.

Usage recommendations

For best results, keep runs as short as practical to reduce voltage drop; where long distances are unavoidable, verify amplifier output and speaker sensitivity to ensure adequate SPL. Use appropriate strain relief at terminations and avoid running speaker cable in parallel with mains power for extended distances. Store the reel horizontally and avoid tight coiling during transport to preserve cable geometry.