
Stinger SGI21 Male To Male RCA Adapters - Pair
Stinger SGI21 Male to Male RCA Coupler Adaptor, Gold Plated (Pair)
A male-to-male RCA coupler for joining two female RCA sockets or extending a dual female-ended RCA cable gold splice connection, supplied as a pair (red and black).
Product Overview
The Stinger SGI21 is a male-to-male RCA coupler adaptor. Each end presents a male RCA plug, allowing the adaptor to be inserted between two female RCA sockets connecting two female-ended cables or adapting a female RCA output to accept a female RCA input. Supplied as a pair (one red, one black) for left/right channel applications.
Gold splice connection for corrosion resistance and reliable signal transfer. The male-to-male counterpart to the female-to-female SGI20.
Features & Benefits
- Male-to-male RCA coupler — joins two female RCA sockets
- Gold splice connection for corrosion resistance and reliable signal transfer
- Sold as a pair — one red (right) and one black (left) for stereo channel identification
- Useful for dual female-ended cable extension and connection scenarios
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SGI21 |
| Brand | Stinger |
| Connection Type | Male RCA to Male RCA |
| Function | Coupler / extender |
| Plating | Gold splice |
| Sold As | Pair — 1× red, 1× black |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — compatible with any standard female RCA sockets
Goes Well With:
- Stinger SGI20 female-to-female RCA coupler (complementary adaptor)
- Stinger 4000 Series RCA cables (SI429 and related)
- Car audio amplifiers and head units with RCA inputs/outputs
Frequently Asked Questions
What is this adaptor used for?
The SGI21 is used to join two female-ended RCA sockets or cables together — resolving situations where both connection points terminate in female sockets. It is the male-to-male counterpart to the SGI20 (female-to-female) and covers the opposite wiring scenario.
What is the difference between the SGI21 and the SGI20?
The SGI21 has male RCA plugs on both ends and is used to connect two female RCA sockets or extend a dual female-ended RCA cable. The SGI20 has female RCA sockets on both ends and is used to join two male-ended RCA cables. Keep both in your install kit to cover either scenario.
Does this adaptor degrade signal quality?
The gold splice connection helps maintain signal integrity. Any additional connection introduces a very minor resistance, but in practice the SGI21 is transparent for audio signals at typical car audio cable lengths.
Is a pair one adaptor or two?
One pair equals two adaptors — one red and one black — suitable for one stereo (left/right) channel pair.
Is this compatible with all RCA cables?
Yes. The SGI21 accepts any standard female RCA socket on both ends and is not brand or gauge specific.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Stinger SGI21 Male to Male RCA Coupler Adaptor, Gold Plated (Pair)
A male-to-male RCA coupler for joining two female RCA sockets or extending a dual female-ended RCA cable gold splice connection, supplied as a pair (red and black).
Product Overview
The Stinger SGI21 is a male-to-male RCA coupler adaptor. Each end presents a male RCA plug, allowing the adaptor to be inserted between two female RCA sockets connecting two female-ended cables or adapting a female RCA output to accept a female RCA input. Supplied as a pair (one red, one black) for left/right channel applications.
Gold splice connection for corrosion resistance and reliable signal transfer. The male-to-male counterpart to the female-to-female SGI20.
Features & Benefits
- Male-to-male RCA coupler — joins two female RCA sockets
- Gold splice connection for corrosion resistance and reliable signal transfer
- Sold as a pair — one red (right) and one black (left) for stereo channel identification
- Useful for dual female-ended cable extension and connection scenarios
Technical Specs
| Specification | Detail |
|---|---|
| SKU / Part Number | SGI21 |
| Brand | Stinger |
| Connection Type | Male RCA to Male RCA |
| Function | Coupler / extender |
| Plating | Gold splice |
| Sold As | Pair — 1× red, 1× black |
Compatible With / Goes Well With
Direct Vehicle Fit:
- Universal — compatible with any standard female RCA sockets
Goes Well With:
- Stinger SGI20 female-to-female RCA coupler (complementary adaptor)
- Stinger 4000 Series RCA cables (SI429 and related)
- Car audio amplifiers and head units with RCA inputs/outputs
Frequently Asked Questions
What is this adaptor used for?
The SGI21 is used to join two female-ended RCA sockets or cables together — resolving situations where both connection points terminate in female sockets. It is the male-to-male counterpart to the SGI20 (female-to-female) and covers the opposite wiring scenario.
What is the difference between the SGI21 and the SGI20?
The SGI21 has male RCA plugs on both ends and is used to connect two female RCA sockets or extend a dual female-ended RCA cable. The SGI20 has female RCA sockets on both ends and is used to join two male-ended RCA cables. Keep both in your install kit to cover either scenario.
Does this adaptor degrade signal quality?
The gold splice connection helps maintain signal integrity. Any additional connection introduces a very minor resistance, but in practice the SGI21 is transparent for audio signals at typical car audio cable lengths.
Is a pair one adaptor or two?
One pair equals two adaptors — one red and one black — suitable for one stereo (left/right) channel pair.
Is this compatible with all RCA cables?
Yes. The SGI21 accepts any standard female RCA socket on both ends and is not brand or gauge specific.













