The Delta Electronics EC‑1 is a powerful dynamic microphone amplifier, engineered by a radio technician with over 40 years of experience, to deliver loud, crystal‑clear audiofrom virtually any 4‑pin dynamic microphone. Whether you’re using a basic stock mic or an ageing power mic, the EC‑1 transforms your transmit audio with exceptional clarity, punch, and presence. From the same team behind the acclaimed Delta M2 microphone, the EC‑1 brings studio‑grade enhancement to everyday radio setups.

Simply plug your 4‑pin microphone into the front panel, and the EC‑1 instantly amplifies your mic audioto levels typically found inhigh‑end radios and premium microphones. Add to this the TURBO Echofeature for a big, booming theatre‑style echo effect, fully adjustable via the front‑panel Echoand Delaycontrols. The built‑in Roger Beepprovides a clear confirmation tone when unkeying, with a simple on/off switch for operator preference.

Compact in size and supplied with a 12 V DC power cable, the EC‑1 integrates easily with both mobile and base radios. This is far more than a simple echo chamber—it delivers audio amplification performance in a class of its own.

If you’re unsure about compatibility with your radio or microphone, feel free to contact us for guidance.

Features & Functions

• Dynamic microphone amplifier for loud, crystal‑clear audio

• Designed by a technician with 40+ years of radio experience

• Compatible with 4‑pin dynamic microphones

• TURBO Echoeffect for big, booming audio presence

• Adjustable Echo & Delayfront‑panel controls

• Roger Beepwith on/off switch

• Compact, lightweight design

• Includes 12 V DC power cable

• Factory wired 4‑pin Cobra

• 90 cm (3 ft)shielded 4‑conductor coil cord

Compatibility Notes

• Not compatiblewith 4‑pin stock electret or condenser microphones(e.g., USA‑model Uniden 520/510 stock mics)

• Roger Beep is not supportedon USA‑model Cobra 148 radios

Packing Includes

• 1 × Delta Electronics EC‑1 Echo Box

• 1 × User Manual (English).