Stinger SI42YF 2-Channel 4000 Series 2 Female To 1 Male RCA Y-Adapter Cable

Stinger SI42YF 4000 Series RCA Y-Adapter, 1 Male to 2 Female (30cm)

Splits one male RCA output into two female RCA inputs OFC conductors, C3 Tech, Shoc-Krome split-tip connectors. 30cm, part of the 4000 Series range.

Product Overview

The Stinger SI42YF is a 4000 Series RCA Y-adapter that converts one male RCA plug into two female RCA sockets. At 30cm, it is used to split a single RCA output (such as a mono subwoofer preout from a head unit) into two inputs for example, feeding two separate mono amplifiers, or providing a signal to both a subwoofer amplifier and a line driver.

Built with OFC conductors, C3 Tech, Shoc-Krome plated split-tip connectors, and directional twisted-pair construction the same 4000 Series specification as the full RCA interconnect range.

Features & Benefits

• Splits one male RCA output into two female RCA inputs
• OFC conductors for excellent signal quality
• C3 Tech (Continuous Connection Construction) for unmatched signal transfer
• Shoc-Krome plated split-tip connectors
• Directional twisted-pair construction for interference rejection
• Colour-coded channel identification
• Moulded strain reliefs
• 30cm cable length

Technical Specs

Compatible With / Goes Well With

Direct Vehicle Fit:

• Universal — compatible with any standard male RCA plug

Goes Well With:

• Stinger 4000 Series RCA cables (SI429, SI4212, etc.)
• Head units with mono subwoofer preout requiring dual amplifier feed
• Stinger SI42YM (male Y-adapter — the complementary version)
• Car audio amplifiers and signal processors with RCA inputs

Frequently Asked Questions

What is a 1-male to 2-female RCA Y-adapter used for?

The SI42YF takes one male RCA plug from a cable end and provides two female RCA sockets — allowing you to feed two amplifiers or two inputs from a single RCA output on a head unit or processor. Common uses include: splitting a mono subwoofer output to two mono amplifiers, or feeding both a main amplifier and a line driver from the same source channel.

Does splitting the signal degrade audio quality?

Splitting an RCA signal introduces a small impedance change at the split point. In typical car audio applications with modern amplifiers, this is negligible. The 4000 Series construction minimises additional resistance and noise at the split.

What is the difference between the SI42YF and the SI42YM?

The SI42YF is 1× male to 2× female — it receives a male plug and provides two female sockets. The SI42YM is the opposite orientation (1× female to 2× male) — it receives a female socket and provides two male plugs. Use SI42YF when splitting a cable output; use SI42YM when providing two outputs from a female input.

Is the 30cm length sufficient?

At 30cm, the SI42YF is designed to sit at a connection point where splitting occurs — not as an extension cable. For longer runs after the split, connect standard RCA cables to the two female outputs.

Is the SI42YF from the same range as the standard 4000 Series RCA cables?

Yes. The SI42YF uses the same OFC conductors, C3 Tech, Shoc-Krome split-tip connectors, and directional twisted-pair construction as the full 4000 Series RCA cable range.

Weight

0.074 kg