Audioquest Brave Heart (2 x 4m)

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

Redesigned architecture for total acoustic control

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

This configuration employs solid PSC+ (Perfect-Surface Copper+) copper conductors whose surfaces are polished 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 in the bass frequencies.

Seven-level RF noise dissipation

In response to our increasingly wireless-saturated environment, Brave Heart deploys a multilayer protection system. Optimized polypropylene insulation broadens the dissipation bandwidth while spacing conductors farther apart to reduce parasitic capacitive effects.

Carbon-loaded PVC layers, enriched with graphene, convert RF energy into heat. The 4% silver-plated drain wires—a twelvefold increase in concentration over 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 any 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.

Benefits include: uncompressed current transfer during transient peaks, preservation of damping factor along the full cable length, and a 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 organizes 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 integrates an RF noise trap derived from Niagara technology, ensuring no interference is induced from the DBS elements into the conductors. The result: an extraordinarily silent background from which music emerges with exceptional 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 material. Red-copper contacts are immersed in silver using an exclusive process that delivers adhesion and conductivity superior to 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 layers of carbon-loaded PVC and graphene
• Shielding: 4% silver
• Geometry: ZERO-Tech with no characteristic impedance
• Directionality: controlled orientation to drain RF noise

Connectors and finish

• Connector types: Red-Copper banana plugs
• Assembly: cold-welded with no heat or solder
• Connector finish: silver-plated parts
• Cable exit: metal-free synthetic
• Jacket: red/black nylon braid finish
• Outer diameter: close to the 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, particularly in low frequencies
• Better control of demanding speakers: low impedance, bass-reflex enclosures
• Significant reduction of distortion and parasitic 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