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4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher
FlyroadUp

4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher

Bottom line: The FlyroadUp 4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher: Bi-directional: 4 sources to 1 speaker, or 1 source to 4 outputs; main trade-off: only one source or output is active at a time, no simultaneous playback.

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Mike Perry — Hardware researcher since 2014. For projectors, gaming displays and video upscalers, synthesises manufacturer specs against measured reviews (ProjectorCentral, RTINGS), treating non-ANSI "lumen" figures as marketing claims rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. How we check display specs →

Pros & Cons

Pros

  • ✓ Bi-directional: 4 sources to 1 speaker, or 1 source to 4 outputs
  • ✓ Mixes 3.5mm aux and RCA L/R on both inputs and outputs
  • ✓ Passive design, no power or drivers, plug-and-play push buttons
  • ✓ Sturdy metal enclosure, compact enough for a desk or media shelf

Cons

  • ✗ Only one source or output is active at a time, no simultaneous playback
  • ✗ Purely analog, no optical or digital audio support
  • ✗ Manual push-button switching only, no remote
  • ✗ Passive switch cannot mix or amplify signals

SpecPicks Verdict

SpecPicks scored FlyroadUp 4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher using a rating × review-volume × price-fit model applied to published specs and reviews across the displays & upscalers category. FlyroadUp's displays & upscalers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for displays & upscalers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • BI-DIRECTIONAL AUDIO SWITCH: Connect 4 audio sources to 1 speaker or switch 1 audio source to 4 speakers (only 1 plays at a time). This is a practical solution for game and audio enthusiasts, home theater owners and content creators who are managing multiple audio devices
  • FREE COMBINATION OF 3.5MM & RCA: Designed for flexible audio setups, this audio switch supports 3.5mm input with 3.5mm/RCA L&R output, or RCA L/R input with 3.5mm/RCA L&R output. Easily connect together phones, PCs, TVs, CD players, game consoles, speakers, headphones, amplifiers, receivers, and more
  • EASY TO USE: No power required, just plug and play. Intuitive push buttons let you quickly toggle between sources or outputs without repeatedly plugging and unplugging cables, providing precise control over your audio routing
  • CLEAR, NOISE-FREE STEREO: The simple mechanical design helps preserve sound quality and deliver crisp audio, making it a reliable choice for everyday listening, music playback, movies, and gaming
  • COMPACT & DURABLE DESIGN: Built with a sturdy metal enclosure for durability and long-term use, while the compact design fits neatly on a desk or media cabinet

Full Specifications

BrandFlyroadUp
ColorBlack
Cable TypeRCA L/R, 3.5mm AUX
Unit Count1 Count
Model NumberA-401
CompatibilitySwitch
Connector Type3.5mm Jack, RCA L/R
Mfr Part NumberA-401
Number of Items1
Number of Ports4
Audio Output ModeStereo
Compatible DevicesTV, PC, Turntable, DVD/CD Player, Gaming Console, Speaker, Headphone, Amplifier, Receiver
Warranty Description1 Year Warranty
COMPACT & DURABLE DESIGNBuilt with a sturdy metal enclosure for durability and long-term use, while the compact design fits neatly on a desk or media cabinet
Item Dimensions D x W x H5.5"D x 2.8"W x 1.5"H
Connector Type Used on Cable3.5mm Jack, RCA L/R

Ready to buy?

4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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