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Black rectangular external speaker with 3.5mm plug and mounting bracket

Gemini TRD550 3.5mm 5W external speaker

SKU CH-ZTHM-YKA34

A compact 3-inch external speaker with a 1.8-metre 3.5 mm cable for CB, ham radio or scanner use

  • Audio channelsSubwoofer Only
  • Sales unitSystem
  • Speaker setupExternal Speaker
  • Driver size6.5 in (16.5 cm)
  • Rated power8 W
  • Frequency range27 Hz - 120 kHz
  • 8 metre cable with 3.5mm plug connects directly to radio gear
  • 3 inch dynamic driver delivers clear mono audio for voice communications
  • 5 watt power handling suits mobile transceiver, CB and ham radio use
  • 8 ohm impedance matches standard radio speaker outputs
  • Lightweight plastic cabinet with mounting bracket enables flexible installation

Gemini TRD550 external speaker

The Gemini TRD550 is a compact external speaker designed for mobile transceivers, CB radios and ham radio equipment. It connects via a 3.5 mm plug on a 1.8 metre cable and delivers 5 W of power handling for clear voice communication. The 3 inch dynamic driver is housed in a lightweight plastic cabinet with an integrated mounting bracket.

3.5 mm auxiliary interface limits

The auxiliary connection provides a simple wired link that carries mono audio from the radio’s external speaker jack. Cable length is fixed at 1.8 metres, so placement is restricted to that radius from the transceiver. No wireless option, remote control or additional inputs are included, making the speaker a single-purpose add-on for radio gear.

5 W power handling decides fit

The 5 W rating determines whether the speaker matches your radio’s external audio output. Radios rated well above 5 W risk overdriving the driver, while lower-powered sets will operate cleanly. Impedance is 8 ohms and frequency response spans 27 Hz to 120 kHz, but the power figure is the primary spec to check before purchase.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 96% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameGemini
Product lineTRD550, Rectangular External speaker
Model nameARIA926DW
Part numberTRD550
Product typeSubwoofer
Product colorBlack
Audio & video
Audio channelsSubwoofer Only
Speaker setupExternal Speaker
Driver size6.5 in (16.5 cm)
Frequency range27 Hz - 120 kHz
Rated impedance4 Ohms
Ports & slots
Connection typesWired
Power
Rated power8 W
Power supplyCorded Electric
Size & build
Cabinet materialPlastic
Size and weight120 × 120 × 25 mm 4.72 × 4.72 × 0.98 in
In the box
Sales unitSystem
In the boxExternal speaker *1, Bracket *1
More details
Remote controllerNo

Questions about this item

Should I choose the TRD550 or the ARIA926DW model number?

Both numbers refer to the same rectangular external speaker; TRD550 is the part number and ARIA926DW is the model label used by the manufacturer.

How loud will the 5 W power handling be in my vehicle?

The 5 W rating drives a 3‑inch dynamic driver through a 1.8 m cable, giving clear mono audio for CB, ham or scanner use inside a cab.

What does the 3.5 mm AUX connector limit in practice?

The 3.5 mm plug carries a mono signal only, so stereo sources will be summed to one channel and volume is controlled at the radio.

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