RF Limited XTR-2018 Xtreme(tm) Echo Mic


The most common wiring available is the 4-pin Cobra/Galaxy/Uniden.
Can be wired to any radio on the market today.

EC-2018 Xtreme™ Wire Color Code:

Black PTT Common
Shield Ground
Red Audio
White PTT TX
EC-2018 Xtreme™ Specifications
Sensitivity -25dB @ 1 KHz (at maximum output and minimum echo)
Impedance 1 K Ohm
Frequency Response 150 – 3 KHz
Echo Frequency Response 200 – 3 KHz
Echo Time 2 Seconds Maximum
Battery 9 Volt – Preferably Alkaline
Internal Noise 0.5mV or Less
Microphone Element ECM Type


Out of stock


RF Limited XTR-2018 Xtreme ™ Echo MicThis is the latest echo mic from RF Limited.

As the name suggests, it’s turbo echo to the extreme! It has:

  • Cyborg™ Robotic Voice, which is another name for Alien Voice™
  • Endless Echo™
  • Stadium Sound™
  • Double Talker™, and a richer tone quality that can be best described as studio quality. To best describe the Double Talker™ effect I have to mention the Astatic Echo Max 2000™. It is the same as their Slapback™ effect. It is a one time repeat instead of a fading echo.

Runs off of a 9 volt battery. We recommend an alkaline type.

Below is a table with the approximate settings for desired effects.

  • Echo Volume Echo Delay Echo Switch Sound Effect
  • 2 through10 0 J Cyborg™
  • 2 through 10 2 J Stadium Sound™
  • 8 through 10 8 through 10 J Endless Echo™
  • 2 through 10 2 through 10` DT Double Talker™

Additional information

Dimensions9.5 × 4 × 2.6 in