Monoprice

Monoprice 105579 3.5mm Stereo Audio Cable - 15ft Black

4.5 (122 reviews)

Shielded 22AWG coaxial construction eliminates EMI and RFI intrusion across 15 feet of analog stereo signal path.

$13.00*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Monoprice 105579 is a 15-foot 3.5mm TRS-to-TRS stereo audio cable built around 22AWG conductors with individual per-conductor shielding inside a heavy-duty coaxial jacket. The per-conductor shielding topology is the technically meaningful differentiator here: by isolating the left and right channels from each other as well as from external fields, it addresses both crosstalk between channels and EMI/RFI ingress from power lines, motors, and wireless devices in the signal path. The gold-plated connectors add oxidation resistance at the contact surface, which matters in permanent or semi-permanent installations where you're not regularly reseating the plugs to clean the contacts.

This cable is designed for fixed-installation use cases: connecting a PC audio output to powered desktop speakers, running signal from a mixer or audio interface to a recording system, or any application where the cable will be routed once and left in place. The 22AWG gauge and coaxial construction are engineered for signal integrity, not flexibility — for portable or frequently-repositioned setups, the cable's rigidity is a practical limitation. For the intended scenario of a clean, permanent desktop or rack installation in an environment with electrical interference, it's a technically sound choice backed by a lifetime warranty that removes any ongoing cost consideration.

Key Features

Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers.

This cable features a male 3. 5mm stereo (TRS) plug on each end with molded connector housings and strain relief boots

The conductors are 22AWG and each conductor is shield to prevent EMI or RFI interference from entering your audio system

The cable is made of heavy-duty coaxial cable for each conductor.

The cable is 12mm x 6mm thick, while the connector housings are 41mm long x 15mm diameter.

Specifications

Length
15 feet
Connector Type
3.5mm Stereo Male (TRS) to 3.5mm Stereo Male (TRS)
Conductor Gauge
22AWG
Shielding
Per-conductor, EMI/RFI shielded
Connectors
Gold-plated
Cable Construction
Heavy-duty coaxial, dual conductor
Cable Dimensions
12mm × 6mm
Connector Housing
41mm long × 15mm diameter
Warranty
Lifetime

Pros & Cons

👍 Pros

  • Per-conductor EMI/RFI shielding prevents left/right channel crosstalk and external interference — a more effective topology than single overall-shield cables.
  • 22AWG conductors provide adequate cross-section for clean signal transfer at line-level over the full 15-foot length without measurable resistive loss.
  • Gold-plated connectors resist oxidation at the contact surface, maintaining low contact resistance over years of use and repeated plug cycles.
  • Strain relief boots at both ends protect the solder joint from cable-flex fatigue — the primary failure point on TRS cables under regular use.
  • Lifetime warranty removes long-term cost risk from what should be a permanent passive component in a fixed installation.

👎 Cons

  • At 12mm × 6mm, the cable's coaxial construction is substantially stiffer and bulkier than standard stereo cables, making clean routing behind furniture or through cable management channels more difficult.
  • Connector housings at 15mm diameter may not clear tight port spacing on panels with multiple closely-spaced 3.5mm jacks or recessed laptop ports.
  • 15 feet is the only length available in this model — users needing a shorter run for a desktop setup carry unnecessary cable bulk with no gain.

Frequently Asked Questions

22AWG per conductor. At analog line-level signal strengths over a 15-foot run, 22AWG provides well within the electrical cross-section needed to avoid resistive signal loss. For this application length, the gauge is not the constraint — shielding quality is, and this cable addresses that with per-conductor shielding.
Each conductor is individually shielded. This is a more effective topology than a single overall braid shield because it prevents crosstalk between the left and right channels in addition to blocking external EMI and RFI. Standard bulk stereo cables use a single shared shield, making per-conductor shielding a meaningful differentiator at this price tier.
The connector housings are 41mm long by 15mm in diameter with strain relief boots. At 15mm diameter, these are on the larger side for TRS plugs — worth checking clearance if you're plugging into a recessed 3.5mm port on a laptop or a multi-jack panel with tight spacing.
Each conductor uses heavy-duty coaxial construction (12mm × 6mm overall cable profile). This is stiffer than standard stranded cable, which improves durability and reduces microphonics (noise from cable handling), but makes routing in tight spaces or behind furniture more difficult than a thinner, flexible cable.
Yes. Monoprice's lifetime warranty applies to this cable. That's a meaningful long-term ownership proposition for a passive component that should, by design, last indefinitely under normal use conditions.