AudioQuest Big Sur RCA Interconnect Cable | The Grid HiFi

AudioQuest Big Sur RCA Interconnect Cable

The AudioQuest Big Sur RCA is a high-performance analog interconnect built for listeners who want greater clarity, dynamics, and signal integrity from their audio system. Big Sur combines Solid Perfect-Surface Copper+ (PSC+) conductors, Foamed-Polyethylene insulation, Metal-Layer Noise-Dissipation, Asymmetrical Double-Balanced Geometry, and cold-welded gold-plated Pure Purple Copper terminations in a flexible cable that works across a wide range of high-quality audio components.

With **PSC+—AudioQuest’s best copper conductor material—**Big Sur brings a particularly important technology from the company’s higher-performance cables into an RCA interconnect that remains practical for everyday HiFi systems.

Solid Perfect-Surface Copper+ (PSC+) Conductors

Big Sur uses Solid Perfect-Surface Copper+ (PSC+), AudioQuest’s highest-grade copper. Its extreme purity and exceptionally smooth conductor surface are designed to minimize distortion caused by grain boundaries.

The solid-conductor construction also prevents the electrical and magnetic strand interaction found in conventional stranded cables. AudioQuest additionally uses PSC+ as part of its approach to maximizing linear RF Noise-Dissipation.

Metal-Layer Noise-Dissipation

Modern audio systems are surrounded by radio-frequency interference from Wi-Fi, cellular networks, Bluetooth, switching power supplies, and other electronics.

Big Sur incorporates Metal-Layer Noise-Dissipation, which is designed to absorb and reflect much of this RF energy before it reaches the cable layer connected to the component's ground. This helps prevent captured RF energy from modulating the system's ground reference and interfering with the audio signal.

Foamed-Polyethylene Insulation

Big Sur surrounds its conductors with Foamed-Polyethylene (Foamed-PE) insulation.

All solid insulation materials absorb some energy and can release it back into the signal as distortion. Foamed-PE contains a high percentage of air, and because air absorbs very little energy, the design minimizes this effect. The result is better preservation of transient information, dynamic contrasts, and spatial detail.

Asymmetrical Double-Balanced Geometry

AudioQuest's Asymmetrical Double-Balanced Geometry is purpose-designed for single-ended RCA applications.

Rather than using one path for both ground and shielding, the design separates these functions and provides relatively lower impedance on the ground. AudioQuest's goal is cleaner, quieter performance with greater dynamic expression.

Direction-Controlled Conductors

Every internal conductor in Big Sur is Direction-Controlled as part of AudioQuest's overall RF Noise-Dissipation strategy.

AudioQuest controls conductor orientation during manufacturing to help reduce induced RF noise and prevent that energy from compromising sensitive audio circuitry.

Cold-Welded, Gold-Plated Pure Purple Copper Terminations

Big Sur features cold-welded, gold-plated Pure Purple Copper RCA terminations.

The connectors are attached using a high-pressure cold-welding process rather than conventional solder, eliminating solder as an additional material within the signal path. The use of high-quality Pure Purple Copper beneath the gold plating further supports clean, reliable signal transfer.

Key Features

• Solid Perfect-Surface Copper+ (PSC+) conductors
• AudioQuest's highest-grade copper
• Solid-conductor construction eliminates strand interaction
• Metal-Layer Noise-Dissipation
• Foamed-Polyethylene insulation
• Asymmetrical Double-Balanced Geometry
• Direction-Controlled conductors
• Cold-welded terminations
• Gold-plated Pure Purple Copper RCA connectors
• Flexible construction for easy system integration
• Designed for single-ended analog RCA connections

Available Lengths

Big Sur RCA is available in 0.6m, 1m, 1.5m, 2m, 3m, 5m, 8m, 12m, 16m, and 20m lengths, making it equally useful for short equipment-rack connections and longer analog runs.

Why Choose AudioQuest Big Sur?

Big Sur occupies an appealing point in AudioQuest's analog interconnect range because it combines the flexibility and straightforward design of the Bridges & Falls family with PSC+ conductors, the company's highest-grade copper.

For a quality DAC, streamer, CD player, preamplifier, integrated amplifier, or other line-level component, Big Sur provides a serious cable upgrade without requiring a move into AudioQuest's more elaborate upper-tier designs. Its combination of PSC+, dedicated RF noise management, low-loss insulation, and upgraded Pure Purple Copper terminations makes it especially well suited to resolving two-channel HiFi systems.

The Grid HiFi offers AudioQuest cables for high-performance two-channel HiFi, home theater, and professionally designed whole-home audio systems. Visit our Houston showroom or contact The Grid for help selecting the right AudioQuest RCA interconnect and length for your system.