Stinger SI421.5 .45m 4000 Series 2 Channel RCA Interconnects

Stinger SI421.5 4000 Series 2 Channel RCA Interconnect Cable 0.45 Metre with C3 Technology and Shoc-Krome Connectors

The SI421.5 from Stinger is a 2 channel RCA interconnect cable from the 4000 Series range, measuring 0.45 metres (1.5ft) in length. Built with oversized OFC conductors, Continuous Connection Construction (C3 Technology), split-tip Shoc-Krome plated connectors, and directional twisted-pair construction, it delivers audiophile-grade signal transfer with strong noise rejection across both channels. A lifetime warranty against manufacturer defects is included.

Product overview

The Stinger 4000 Series RCA range is built for car audio installations where signal integrity, noise rejection, and long-term reliability are priorities. The SI421.5 uses C3 Technology (Continuous Connection Construction), which provides unmatched signal transfer and improved frequency response by eliminating the signal discontinuities that affect lesser cable constructions. At 0.45 metres, it is the shortest cable in the 4000 Series 2 channel range, suited to installations where the amplifier is mounted immediately next to the head unit or signal processor with virtually no cable run required.

The split-tip Shoc-Krome plated connectors maximise contact surface area for superior signal transfer at each connection point, while the moulded strain reliefs protect the cable at the connector entry point against fatigue from repeated flexing. The minimalistic clear protective jacket reduces friction during installation, and colour-coded channel identification simplifies connection of both channels to the correct amplifier inputs.

Features and benefits

C3 Technology (Continuous Connection Construction): Provides unmatched signal transfer and improved frequency response by maintaining a continuous, consistent conductor path throughout the cable length, eliminating the signal discontinuities common in lesser RCA cables.

Oversized OFC conductors: Oxygen-free copper conductors in an oversized gauge reduce resistance and maximise signal transfer across both channels for audiophile-grade sound quality.

Directional twisted-pair construction: The directional twisted-pair winding pattern protects against electromagnetic interference and broadens dynamic range, maintaining clear channel separation across the full cable run.

Split-tip Shoc-Krome plated connectors: The split-tip design maximises contact surface area between the plug and socket for superior signal transfer, with Shoc-Krome plating providing excellent conductivity and corrosion resistance at each connection point.

Moulded strain reliefs: Strain reliefs at each connector entry point protect the cable against fatigue from repeated flexing, contributing to the long-term durability that supports the lifetime warranty.

Colour-coded channel identification: Each channel is colour-coded for clear identification, simplifying the connection of both channels to the correct amplifier inputs during installation.

Lifetime warranty against manufacturer defects: The SI421.5 is covered by Stinger's lifetime performance warranty against manufacturer defects, reflecting the brand's confidence in the long-term reliability of the 4000 Series range.

What's in the box

• 1x Stinger SI421.5 4000 Series 2 Channel RCA Interconnect Cable (0.45 metres)

Technical specs

Frequently asked questions

What is the difference between the SI421.5 and the other 4000 Series 2 channel RCA cables?
All 4000 Series 2 channel RCA interconnects share identical construction and specification. The SI421.5 is 0.45 metres (1.5ft), the SI423 is 0.9 metres (3ft), the SI426 is 1.8 metres (6ft), the SI4212 is 3.7 metres (12ft), the SI4217 is 5 metres (17ft), and the SI4220 is 6.1 metres (20ft). Select the length that suits the cable run distance in your specific installation.

What type of installation is the 0.45 metre length suited to?
The 0.45 metre length is suited to installations where the amplifier or signal processor is mounted immediately next to the head unit with virtually no cable run required between the two units. For all other standard vehicle installations, a longer cable from the 4000 Series range is more appropriate.

What is C3 Technology?
C3 stands for Continuous Connection Construction. It is Stinger's proprietary cable construction method that maintains a continuous, consistent conductor path throughout the cable length, eliminating the signal discontinuities that can degrade frequency response and signal transfer in lesser RCA cables.

Does the SI421.5 include a warranty?
Yes. The SI421.5 is covered by Stinger's lifetime performance warranty against manufacturer defects. Contact us for further details on warranty claims and conditions.

Is the SI421.5 available in other channel counts or lengths?
The Stinger 4000 Series RCA range includes cables in various channel counts and lengths. Contact us to confirm the full range of available options to suit your specific installation requirements.