Stinger SI421.5 .45m 4000 Series 2 Channel RCA Interconnects
Stinger SI421.5 4000 Series 2-Channel RCA Interconnect, 0.45m
Audiophile-grade 2-channel OFC RCA patch cable from the Stinger 4000 Series C3 Tech, Shoc-Krome split-tip connectors, directional twisted-pair construction. 0.45 metres (1.5ft) the shortest in the 4000 Series range.
Product Overview
The Stinger SI421.5 is the 0.45-metre (1.5ft) 2-channel version of the 4000 Series RCA interconnect range the absolute shortest available. At less than half a metre, it functions as a premium patch cable for connecting adjacent rack-mounted components, signal processors directly coupled to amplifiers, or any application where two RCA-connected components sit side by side.
It shares the same premium construction as all 4000 Series cables oversized OFC conductors, C3 Tech, Shoc-Krome plated split-tip connectors, directional twisted-pair shielding, and moulded strain reliefs.
Features & Benefits
- 2-channel oversized OFC RCA patch cable
- C3 Tech (Continuous Connection Construction) for unmatched signal transfer
- Shoc-Krome plated split-tip connectors for superior contact and signal transfer
- Directional twisted-pair construction — interference rejection
- Compact connector design and clear flexible jacket
- Colour-coded channel identification
- Moulded strain reliefs for connector durability
- 0.45-metre (1.5ft) length — shortest in the 4000 Series range
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SI421.5 |
| Brand | Stinger |
| Series | 4000 Series |
| Channels | 2-channel |
| Length | 0.45m (1.5ft) |
| Conductor Type | Oversized OFC (Oxygen-Free Copper) |
| Connector Plating | Shoc-Krome (split-tip) |
| Construction | Directional twisted-pair |
| Signal Technology | C3 Tech (Continuous Connection Construction) |
| Jacket | Clear flexible PVC, colour-coded |
| Strain Relief | Moulded |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — compatible with any car audio component with standard RCA inputs/outputs
Goes Well With:
- Signal processors, equalisers, active crossovers, and DSPs mounted directly adjacent to amplifiers
- Rack-mounted or stacked car audio equipment requiring ultra-short interconnection
- Stinger SI423 (0.9m — next length up for slightly longer short runs)
- Stinger 4000 Series amplifier wiring kits
Frequently Asked Questions
When would I use a 0.45m RCA cable?
The SI421.5 is a patch cable for adjacent component connections — where two RCA-connected units sit side by side in a boot rack, equipment bay, or under-dash installation. At 0.45m it is not suitable for standard head unit-to-amplifier runs.
Is this the shortest cable in the 4000 Series range?
Yes. The SI421.5 at 0.45m (1.5ft) is the shortest in the 4000 Series 2-channel RCA range. The full length progression is: SI421.5 (0.45m) → SI423 (0.9m) → SI426 (1.8m) → SI4212 (3.6m) → SI429/SI4217 (5m) → SI4220 (6m).
Is the SI421.5 directional?
Yes. The SI421.5 uses directional twisted-pair construction and should be installed with signal flowing from the source to the receiving component.
Can I use the SI421.5 for a subwoofer (mono) connection?
Yes. One channel of the 2-channel cable can be used for a mono subwoofer connection where the amplifier supports a dedicated mono input.
Does such a short cable still provide meaningful noise rejection?
Yes. The directional twisted-pair construction and Shoc-Krome connectors still provide effective noise rejection even at 0.45m — particularly important in boot installations where multiple power cables, amplifiers, and batteries are in close proximity.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Stinger SI421.5 4000 Series 2-Channel RCA Interconnect, 0.45m
Audiophile-grade 2-channel OFC RCA patch cable from the Stinger 4000 Series C3 Tech, Shoc-Krome split-tip connectors, directional twisted-pair construction. 0.45 metres (1.5ft) the shortest in the 4000 Series range.
Product Overview
The Stinger SI421.5 is the 0.45-metre (1.5ft) 2-channel version of the 4000 Series RCA interconnect range the absolute shortest available. At less than half a metre, it functions as a premium patch cable for connecting adjacent rack-mounted components, signal processors directly coupled to amplifiers, or any application where two RCA-connected components sit side by side.
It shares the same premium construction as all 4000 Series cables oversized OFC conductors, C3 Tech, Shoc-Krome plated split-tip connectors, directional twisted-pair shielding, and moulded strain reliefs.
Features & Benefits
- 2-channel oversized OFC RCA patch cable
- C3 Tech (Continuous Connection Construction) for unmatched signal transfer
- Shoc-Krome plated split-tip connectors for superior contact and signal transfer
- Directional twisted-pair construction — interference rejection
- Compact connector design and clear flexible jacket
- Colour-coded channel identification
- Moulded strain reliefs for connector durability
- 0.45-metre (1.5ft) length — shortest in the 4000 Series range
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SI421.5 |
| Brand | Stinger |
| Series | 4000 Series |
| Channels | 2-channel |
| Length | 0.45m (1.5ft) |
| Conductor Type | Oversized OFC (Oxygen-Free Copper) |
| Connector Plating | Shoc-Krome (split-tip) |
| Construction | Directional twisted-pair |
| Signal Technology | C3 Tech (Continuous Connection Construction) |
| Jacket | Clear flexible PVC, colour-coded |
| Strain Relief | Moulded |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — compatible with any car audio component with standard RCA inputs/outputs
Goes Well With:
- Signal processors, equalisers, active crossovers, and DSPs mounted directly adjacent to amplifiers
- Rack-mounted or stacked car audio equipment requiring ultra-short interconnection
- Stinger SI423 (0.9m — next length up for slightly longer short runs)
- Stinger 4000 Series amplifier wiring kits
Frequently Asked Questions
When would I use a 0.45m RCA cable?
The SI421.5 is a patch cable for adjacent component connections — where two RCA-connected units sit side by side in a boot rack, equipment bay, or under-dash installation. At 0.45m it is not suitable for standard head unit-to-amplifier runs.
Is this the shortest cable in the 4000 Series range?
Yes. The SI421.5 at 0.45m (1.5ft) is the shortest in the 4000 Series 2-channel RCA range. The full length progression is: SI421.5 (0.45m) → SI423 (0.9m) → SI426 (1.8m) → SI4212 (3.6m) → SI429/SI4217 (5m) → SI4220 (6m).
Is the SI421.5 directional?
Yes. The SI421.5 uses directional twisted-pair construction and should be installed with signal flowing from the source to the receiving component.
Can I use the SI421.5 for a subwoofer (mono) connection?
Yes. One channel of the 2-channel cable can be used for a mono subwoofer connection where the amplifier supports a dedicated mono input.
Does such a short cable still provide meaningful noise rejection?
Yes. The directional twisted-pair construction and Shoc-Krome connectors still provide effective noise rejection even at 0.45m — particularly important in boot installations where multiple power cables, amplifiers, and batteries are in close proximity.
