AEA A840


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SKU: AEA-A840 Categories: ,
AEA Ribbon Mics


AEA A840 Microphone

With the A840, AEA introduces the active version of its award-winning R84 microphone. The A840 flatters strings, woodwinds, drums, piano, voice, and much more with the ease and grace that only a Big Ribbon™ mic can deliver.

Now with phantom power, you now have a lot more flexibility in your choice of preamps because you no longer the quiet gain that passive ribbons need so much of. The A840 also shares many of the characteristics of its granddaddy, the A440, but is much more economically priced. Because the A840 shares the same Big Ribbon™ as the rest of AEA’s product line you’ll acheive a sound with the A840 that is smooth, natural and free of any of the uncomfortable resonances that shorter ribbons and condensers can exhibit. The result is a sound that many engineers say sounds astonishingly close to what your ear hears when you’re actually standing in the studio because the R84 doesn’t color the sound with a lot of its own characteristics. Because the A840 has significantly less proximity effect than the A440, the A840 makes an excellent spot mic as it is optimized to be positioned within 12″ of the sound source without bass distortion.

The A840 makes all of this available in a single package: the signal strength and flexibility of active electronics combined with the luxurious warmth of a Big Ribbon™ all wrapped up in a much more affordable package. No studio is complete without a pair of A840’s

The microphone package includes a three meter cloth covered Accusound and an AEA vertical case for proper shipping and storage.


  • Powered version of the R84
  • Large-diaphragm ribbon microphone
  • Higher output than R84 for versatility
  • Compatible with any preamp and input impedance
  • Low self noise of 17.5 dB
  • Fast, accurate transient reproduction
  • High SPL capability of 141dB
  • Well-controlled, native figure-8 polar pattern
  • Wide-band response from below 20Hz to above 20kHz


Microphone Type Ribbon
Polar Pattern Figure-8
Frequency Response 20Hz-20kHz
Max SPL 141 dB SPL
Output Impedance 92 ohms
Self Noise 17.5 dB (A)
Ribbon Aluminum, 1.8 microns Thick, 4.7mm x 59.7mm
Length 11.6″
Width 3.9″
Depth 2.5″
Weight 3 lbs.


Options & Accessories

M Option
Hand tuning to stereo match a pair of new mics.
Specify when mics are ordered.