The 85 km is a condenser microphone whose appearance is identical to that of the 83 or 84. There are normal version (din) or version "i" (for international) with an XLR output. This configuration gives over 2 cm in length. The only "rglage" before it is attnuateur of 10 db. This is a fixed cardioid microphone. What is the diffrence of 84 in a rponse frquence cudgel in the grave. CHARACTERISTICS This allows the instruments to capture the sound level is quite low with a prs acceptable proximity effect. I used a rcemment Taylor (Guitar) and trs j'tais rsultat satisfied. It can also be used on a charl a snare, a cello or double bass, in support for a cymbal ... Absolutely deprecated for close votes (as in 84 for that matter).