REL Acoustics Bassline Blue - High Level Subwoofer Cable

Product Description

The REL Bassline Blue Subwoofer Cable is the ultimate high-level interconnect for optimizing your REL subwoofer’s performance. Handcrafted with premium materials, this cable enhances every aspect of your audio system, delivering exceptional clarity, speed, and dynamics. Designed by REL’s expert engineers, the Bassline Blue leverages proprietary filter board technology to unlock a vivid, illuminated soundstage that extends well beyond the bass region. Available in 3m, 6m, and 10m lengths, with NAIM-compatible versions in 3m and 6m, it’s the perfect upgrade for REL owners seeking to elevate their hi-fi or home theater experience.  

Key Features  

• High-Purity Copper Conductors: Slow-drawn, high-purity copper, drawn in a nitrogen bath to minimize impurities, coated in Teflon for a pure, natural sound REL calls Natural Drawn™ wire.
• Neutrik SpeakOn Connectors: Swiss-made, reliable SpeakOn connectors, used in over 100,000 REL subwoofers worldwide, ensure neutral, mechanically ideal high-level input connections.
• High-Level Connection: Connects to your amplifier’s speaker terminals (red to right positive, yellow to left positive, black to ground) for seamless integration with your main speakers’ signal.  
• Optimized for REL Subwoofers: Engineered to balance inductance, capacitance, and resistance, enhancing clarity, speed, and dynamics across all REL models, especially Serie S and Reference Series.  
• NAIM Compatibility: Special circuit in 3m and 6m NAIM versions replicates the complex output impedance of classic NAIM amplifiers for safe, high-performance use.  
• Soundstage Illumination: Enhances contrast, clarity, and dynamic shadings, creating a vivid, three-dimensional soundstage far beyond typical bass improvement.  
• Handcrafted Quality: Built in REL’s California facility with pure silver solder and gold-plated spade lugs to minimize oxidation and ensure long-term sonic integrity. 
• Flexible Termination: Gold-plated spade lugs can be re-terminated to bare wire for amplifiers requiring it, ensuring broad compatibility.  
• 3-Year Warranty: Parts and labor coverage

Why Choose the REL Bassline Blue?

The Bassline Blue is more than a cable—it’s a transformative upgrade for any REL subwoofer, from Serie T/x to Reference models. Its high-purity copper and optimized geometry deliver a noticeable improvement in dynamics, clarity, and soundstage illumination, as praised by users and reviewers for “opening up the mids” and “tightening bass” (Polk Audio Forum). Unlike generic speaker cables, it’s tailored to REL’s high-impedance input (>100,000 ohms), avoiding the pitfalls of thick, low-impedance cables that can degrade performance or damage systems. Handmade with military-grade materials, it ensures lasting quality and is a cost-effective upgrade for systems like T/9x or Serie S, though REL recommends pairing lower-end models like T/5x with a second subwoofer first for greater impact. For NAIM owners, its bespoke circuitry ensures compatibility with classic amplifiers, making it a no-brainer for high-end setups.

Product Specifications  

• Cable Type: High-level subwoofer interconnect  
• Length: 10 meters (also available in 3m, 6m; NAIM-compatible in 3m, 6m)  
• Conductors: Slow-drawn, high-purity copper, Teflon-coated, drawn in nitrogen bath (Natural Drawn™ wire)  
• Connectors: Neutrik SpeakOn (subwoofer end), gold-plated spade lugs (amplifier end, re-terminable to bare wire)  
• Solder: Pure silver for minimal sonic degradation over time  
• Compatibility: All REL subwoofers (optimal for T/9x, Serie S, Reference Series; less impact on T/5x)  
• Warranty: 3 years (parts and labor)

What’s Included  

• REL Bassline Blue Subwoofer Cable (10m)  
• User manual

Perfect For  

• Audiophiles upgrading REL Serie T/x, Serie S, or Reference subwoofers for enhanced clarity and dynamics  
• Home theater enthusiasts seeking seamless, high-level integration with main speakers  
• NAIM amplifier owners needing a tailored, high-performance cable solution