Stinger SI8217 8000 Series 2-Channel Triple Shielded RCA 17ft

8000 Series 2-Channel Triple Shielded RCA 17ft, Oversized Silver-Plated Copper, Triple-Braided + Mylar Shielding, Locking Split-Tip Connectors, 3 Conductors per Channel, C3 Tech.

Product Overview

The Stinger SI8217 is a 17-foot (5-metre) 2-channel audiophile-grade RCA interconnect from the 8000 Series engineered for installations where signal quality is the priority and the routing distance demands a longer run. At 17 feet, the SI8217 covers the full head-unit-to-boot-amplifier run in most vehicles including SUVs, wagons, and vans, with cable to spare for routing around obstacles, through door sills, and along body creases.

Oversized silver-plated copper conductors use three conductors per channel separate positive, negative, and signal drain paths ensuring true channel separation and a low-impedance signal return across the full 5-metre length. Triple-braided shielding combined with an inner Mylar foil layer provides multi-directional noise rejection critical over a longer cable run where interference exposure is greatest. A directional high-rate double twisted-pair construction adds a further architectural layer of noise cancellation. Precision machined pewter-finish locking metal ends with channel identification, locking split-tip connectors, no solder joints, moulded strain reliefs, and C3 Tech (Continuous Connection Construction) complete the build.

Key Specifications

• SKU: SI8217
• Series: 8000 Series
• Channels: 2
• Length: 17 feet (5 metres)
• Conductor: Oversized silver-plated copper
• Conductors per channel: 3 (positive, negative, signal drain)
• Total conductors: 6
• Construction: Directional high-rate double twisted-pair
• Shielding: Triple-braided + Mylar foil
• Connector type: Locking split-tip RCA
• Connector finish: Pewter
• Connector end: Precision machined locking metal with channel ID
• Solder joints: None
• Strain relief: Moulded
• Outer jacket: Black mesh protective
• Construction method: C3 Tech (Continuous Connection Construction)
• Warranty: Not specified — confirm with Stinger

Features & Benefits

• 17-Foot Length — Full Vehicle Run for Larger Vehicles At 17 feet (5 metres), the SI8217 provides sufficient length for boot-mounted amplifier installations in SUVs, wagons, and vans where a 12-foot cable falls short. The additional length allows for clean routing along the full B-pillar-to-boot path, with slack to avoid tight bends at cable entry points.
• Oversized Silver-Plated Copper Conductors Oversized silver-plated copper combines the high-frequency precision of silver with the current-carrying capacity of copper — delivering tight, controlled bass response and crystal-clear high-frequency detail across the full 20Hz–20kHz audio spectrum and beyond. Over a 17-foot run, conductor quality has a measurably greater impact on signal integrity than over a short run.
• Triple-Braided + Mylar Shielding — Critical Over Long Runs A 17-foot cable has significantly more exposure to electromagnetic interference than a 6-foot cable — passing along a greater portion of the vehicle's wiring, alternator, and ignition interference sources. Three independent braided layers cascade over each other, with each covering any gaps in the layer beneath, combined with an inner Mylar foil layer for multi-directional noise rejection from both radiated and conducted sources.
• Three Conductors per Channel — True Channel Separation Dedicated positive, negative, and signal drain conductors per channel separate the shield drain from the audio signal return — eliminating the noise interaction that occurs when these paths share a single conductor in a standard two-conductor design.
• Directional High-Rate Double Twisted-Pair Construction The directional double twisted-pair winding is orientated to maximise noise cancellation when signal flows from source unit to amplifier. Directional markings indicate correct orientation. The architectural noise cancellation of the twisted-pair geometry is particularly effective over longer cable runs.
• C3 Tech — No Breaks Over the Full 17 Feet Stinger's C3 (Continuous Connection Construction) ensures no breaks, solder joints, or resistance discontinuities throughout the entire 17-foot length — providing consistent signal transfer from end to end.
• Locking Split-Tip Connectors + Pewter Precision Machined Ends Spring-tension locking split-tip connectors resist vibration-induced loosening in the automotive environment. Pewter-finished precision machined metal ends with channel identification markings ensure correct left/right routing and corrosion-resistant contact at both ends.

Technical Specs

Compatible With / Goes Well With

Suitable for:

• 2-channel amplifier and subwoofer monoblock installations in larger vehicles where the full routing distance from head unit to boot-mounted amplifier exceeds 12 feet
• SUVs, wagons, vans, and larger utes where additional cable length is needed to clear obstacles in the routing path
• High-performance amplifier installations where signal cable quality must match the amplifier's capability

Pairs well with:

• Rockford Fosgate, Hertz, Morel, and AudioControl amplifiers
• Stinger SI82YF and SI82YM 8000 Series Y-adapters for consistent system build across all RCA connections
• Stinger SI8212 (12ft / 3.7m) for shorter vehicle runs in the same 8000 Series specification

Length selection guide: SI826 (6ft / 1.8m) — amplifier in close proximity to head unit. SI8212 (12ft / 3.7m) — standard boot-mounted installation in compact to mid-size vehicles. SI8217 (17ft / 5m) — larger vehicles and longer routing paths.

Frequently Asked Questions

What is the difference between the SI8217 and the SI8212?

Both are identical in specification, construction, and performance — same 8000 Series triple-braided shielding, silver-plated conductors, locking connectors, and C3 Tech. The only difference is length: SI8217 is 17 feet (5m) for larger vehicles, SI8212 is 12 feet (3.7m) for compact to mid-size vehicles. Select based on your vehicle's measured routing distance.

What does triple-braided shielding provide that a standard single braid does not?

Three independent braided layers cascade over each other — each covering any gaps in the layer beneath — achieving dramatically higher total shield coverage than a single braid. Combined with the inner Mylar foil layer, the shielding system rejects both radiated external interference and conducted internal noise simultaneously. This is particularly important over a 17-foot run.

Why does the SI8217 use three conductors per channel rather than two?

Standard RCA cables combine the negative signal return and shield drain into one conductor per channel. The SI8217 separates these into dedicated individual conductors, providing a lower-impedance signal return and isolating the shield drain from the audio signal — reducing the noise interaction that occurs in a standard two-conductor design.

What is the benefit of locking split-tip connectors over standard push-fit RCA connectors?

Standard push-fit RCA connectors rely on friction and can loosen under vibration, causing intermittent noise or signal dropout. The SI8217's locking split-tip connectors mechanically grip the socket with spring tension, providing a vibration-resistant hold that maintains consistent contact force over time in the automotive environment.

What does the directional construction mean, and how should I orient the cable?

The directional double twisted-pair winding cancels noise most effectively when signal flows from source unit to amplifier. Directional markings on the cable indicate the correct orientation. Installing in reverse does not damage the cable but reduces the effectiveness of the directional noise cancellation — particularly relevant over a longer 17-foot run.