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Black metal box with 3.5mm and RCA ports, 5 ft cable attached

AVer TD-Gulfmew-1839 production switcher 4 in 1 out 3.5mm RCA 5 ft cable

SKU CH-8TFN-EN00Z MPN TD-Gulfmew-1839

A passive four-input stereo audio selector with 3.5 mm and RCA connections, 1.5 m cable and metal housing

  • Max Source Support5
  • FormatBlack
  • ColorBlack
  • AudioRCA, 3.5mm AUX
  • HDMI1 Out
  • Component2 In
  • Switch between four sources to one output with zero power needed
  • Route one source to four outputs for flexible speaker selection
  • Connect via 3.5mm AUX or RCA L/R ports on every channel
  • Metal casing shields signal for stable audio transmission
  • Includes 5 ft RCA cable and fits in 5.6 x 2.9 x 1.5 in space

Four-input stereo selector

The AVer TD-Gulfmew-1839 is a passive bidirectional audio switcher that routes four source devices to one output or one source to four outputs. It accepts both 3.5 mm auxiliary and RCA stereo connections on every port, making it suitable for consoles, disc players, TV boxes and computers. Only one channel is active at a time, so simultaneous distribution is not possible. No external power or software is required for operation.

Analogue switching limits

Because the unit is entirely passive, signal level and impedance depend on the connected equipment rather than on internal amplification. The 1.5-metre RCA cable adds convenience but also introduces a fixed length that cannot be extended without additional couplers. Switching is mechanical via front-panel buttons, so remote or automated control is not supported. Audio quality remains transparent only when source and load impedances are reasonably matched.

Metal chassis and desktop footprint

A steel enclosure measuring 5.6 by 2.9 by 1.5 inches provides shielding and durability for desktop or rack-adjacent placement. The compact form factor leaves cabling accessible from the front and rear without demanding deep shelf space. Rubber feet keep the box stable when buttons are pressed repeatedly. The fixed 5 ft cable terminates in RCA plugs, so devices requiring 3.5 mm jacks need a separate adapter at the switcher end.

Highlights

  • Switch between four sources to one output with zero power needed
  • Route one source to four outputs for flexible speaker selection
  • Connect via 3.5mm AUX or RCA L/R ports on every channel
  • Metal casing shields signal for stable audio transmission
  • Includes 5 ft RCA cable and fits in 5.6 x 2.9 x 1.5 in space

Specifications

BrandAVer
SeriesTD-Gulfmew-1839
ModelTD-Gulfmew-1839
Part NumberTD-Gulfmew-1839
Max Source Support5
FormatBlack
ColorBlack
AudioRCA, 3.5mm AUX
HDMI1 Out
Component2 In
Composite2 In
Analog AduioRCA, 3.5mm AUX
Other Connector3.5mm AUX, RCA
System Requirementsfalse
SpecificationTD-Gulfmew-1839, Gulfmew, Black, 5, 3.5mm AUX, RCA, 6.5 L x 4.33 W x 1.57 H inches, 0.8 pounds
Feature5, 3.5mm AUX, RCA, Black
Mount Size6.5 in x 4.33 in x 1.57 in
Dimensions14.33in W x 12.83in H x 9.06in D
Weight0.8 pounds
Package Content1

Questions about this item

Should I pick the 3.5mm AUX or RCA connectors for my four input devices?

Each input port accepts either 3.5mm AUX or RCA L/R, but only one interface per port. Choose the connector that matches each source device; you do not need both on the same port.

What does the 4-in-1-out label mean when I connect this to my speaker system?

You can route any one of the four connected sources to the single output at a time. Simultaneous playback to multiple outputs is not supported.

Does the passive design limit the signal quality over the 5 ft cable?

The unit requires no external power and uses a low-power chip inside a metal casing to maintain stable audio transmission over the included 1.5 m cable.

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