Audioquest Brave Heart (2 x 3m)

Custom-built at AudioQuest’s California headquarters in Irvine, Brave Heart brings, in an optimized form factor, technologies previously reserved for the Folk Hero and Mythical Creatures ranges. This new benchmark marks a significant step in the evolution of the brand’s speaker cables.

Redesigned architecture for total acoustic control

With an outer diameter approaching that of Mythical Creatures (only 0.6 mm less), Brave Heart incorporates one-third more Perfect-Surface Copper+ (PSC+) conductor than previous models in its class. Separating the positive and negative polarities into distinct round jackets makes installation easier while minimizing electromagnetic interactions.

This configuration uses solid PSC+ (Perfect-Surface Copper+) conductors with a polished surface to reduce microscopic irregularities. According to the manufacturer, this limits certain forms of distortion associated with stranded conductors and contributes to better signal transmission, particularly at low frequencies.

Seven-level RF noise dissipation

In response to the increasing saturation of our environment with wireless signals, Brave Heart deploys a multilayer protection system. Optimized polypropylene insulation broadens the dissipation bandwidth while spacing the conductors to reduce parasitic capacitive effects.

Carbon-loaded PVC layers, enriched with graphene, convert RF energy into heat. 4% silver-plated drain wires—twelve times the concentration of previous generations—efficiently shunt residual noise to ground. Every element is directionally oriented to optimize interference drainage.

ZERO-Tech: eliminating characteristic impedance

ZERO-Tech eliminates all interaction between the dielectric insulation and the conductors, thereby abolishing the fixed characteristic impedance of conventional cables. This approach addresses the fundamental mismatch between amplifier and speakers.

The benefits are multiple: uncompressed current transfer during transient peaks, preservation of damping factor over the full cable length, and stable frequency response regardless of speaker impedance variations. This technology particularly benefits bass-reflex loads and low-impedance speakers that demand precise amplifier control.

DBS 72V: permanent dielectric bias

The patented DBS (Dielectric-Bias System) maintains a 72-volt electrostatic field that orders the insulation’s molecules. By permanently biasing the dielectric, it eliminates frequency-dependent time delays while linearizing the filtering function across a wide bandwidth.

The Level-X version incorporates an RF noise trap derived from Niagara technology, ensuring that no interference is induced from the DBS elements into the conductors. The result: a background of remarkable silence from which the music emerges with uncommon purity.

Cold-welded connectors and uncompromising finishes

Multi-Spade or banana terminations use cold-welding—a pressure-assembly technique that creates perfect joints without heat or filler materials. Red-copper contacts are immersed in silver using an exclusive process that provides superior adhesion and conductivity compared with conventional plating.

All structural elements—housings, splitters, jackets—are made from synthetic materials to eliminate any possibility of RF induction. The red-and-black nylon braid provides mechanical protection while maintaining welcome flexibility despite the robust construction.

Technical specifications

Construction and materials

• Type: 12 AWG full-range speaker cable
• Conductors: high-purity solid PSC+ (Perfect-Surface Copper+)
• Structure: positive and negative separated in a round jacket
• Insulation: optimized polypropylene with carbon-loaded PVC layers and graphene
• Shielding: 4% silver
• Geometry: ZERO-Tech with no characteristic impedance
• Directionality: controlled orientation to drain RF noise

Connectors and finishes

• Connector types: Red-Copper banana plugs
• Assembly: cold-welded with no heat or solder
• Connector finish: silver-plated parts
• Cable exit: synthetic, no metal
• Jacket: red/black nylon braid finish
• Outer diameter: close to Mythical models (0.6 mm thinner)

Advanced technologies

• ZERO-Tech: current transfer without compression
• DBS 72V: reduces dielectric noise, greater sonic precision
• Noise dissipation: graphene + carbon + silver shielding
• PSC+ conductors: greater purity, less distortion
• Cold-welded connectors: no added material, better fidelity

Performance and benefits

• More powerful and precise sound, especially in low frequencies
• Better control of demanding speakers: low impedance, bass-reflex enclosures
• Significant reduction of distortion and unwanted noise
• Increased clarity and smoothness when listening
• Performance close to high-end Mythical cables at a more accessible price
• Easier handling thanks to the optimized construction with separated conductors