AudioQuest Irish Red 5m RCA Subwoofer Cable with Ground

AudioQuest Irish Red 5m RCA Subwoofer Cable with Ground

A high-performance, mid-tier subwoofer interconnect from AudioQuest, bringing solid silver-plated conductors, advanced noise-dissipation geometry, and an integrated hum-eliminating ground lead to any system where articulate, controlled bass matters.

The Irish Red sits in AudioQuest’s subwoofer cable lineup above basic copper-only designs, deploying solid 0.5% silver-plated long-grain copper conductors — a configuration particularly well-suited to the limited bandwidth demands of a subwoofer signal, where the surface-travelling nature of high-frequency noise means silver plating delivers much of the performance of a solid silver conductor at a fraction of the cost. Solid conductors of any type eliminate the strand-interaction distortion that plagues multi-strand designs, keeping the bass signal clean, tightly defined, and free of the smearing that can make subwoofers sound “boomy” rather than musical.

AudioQuest’s Symmetrical Coax geometry uses identical positive and negative conductors, which means the cable’s shield is never pressed into service as an audio conductor — a common compromise in lesser designs that degrades signal clarity. Nitrogen-injected foamed-polyethylene insulation minimizes dielectric absorption and preserves dynamic contrasts, while the Metal-Layer Noise-Dissipation System (NDS) provides 100% shield coverage and prevents captured RF interference from contaminating the system’s ground reference — a meaningful benefit in any home with wireless devices, LED lighting, or other sources of RFI.

The 5-metre length makes this cable ideal for longer subwoofer runs across a room — corner placements, rear-wall subs, or any setup where the subwoofer is not immediately adjacent to the AV receiver or amplifier. At 5 metres and under, the Irish Red retains its attractive red-on-black braided nylon jacket — a premium touch that longer runs replace with a plain PVC covering. Cold-welded, gold-plated RCA plugs at each end provide a solder-free, high-pressure connection that minimizes contact resistance and resists corrosion. The integrated ground wire with spade lugs at both ends provides a clean, direct grounding path to eliminate hum — particularly valuable on longer runs where ground loops are more likely to manifest.

As with every component we sell at Radique Audio, this cable has been thoroughly tested before listing.

Specifications:

Type: Single-channel RCA subwoofer interconnect (mono) with ground lead

Length: 5 metres (16.4 feet)

Conductors: Solid 0.5% silver-plated long-grain copper (LGC)

Geometry: Symmetrical coaxial (identical positive and negative conductors)

Insulation: Nitrogen-injected foamed-polyethylene

Shielding: Metal-Layer Noise-Dissipation System (NDS), 100% coverage

Terminations: Cold-welded, gold-plated RCA plugs (solderless high-pressure connection)

Ground: Integrated ground lead with spade lugs at each end

Jacket: Red-on-black braided nylon (5m and under)

Warranty: Lifetime (AudioQuest)

Dimensions: (Length) 16.4 feet / 5.0 m

Weight: 0.35 lbs / 160 g

A premium, hum-free subwoofer interconnect for longer runs — the AudioQuest Irish Red 5m delivers noticeably tighter, more articulate bass than generic patch cables, and at a fraction of its new retail price.

Backed by Radique Audio’s 90-day warranty and perpetual trade-back policy, this is a confident, low-risk upgrade for any subwoofer installation; asking $145.