Neumann KM 184 Stereo Set Matched Cardioid Small-Diaphragm Condenser Pair

Neumann KM 184 Stereo Set: A Matched Pair for True Stereo

The Neumann KM 184 Stereo Set is a factory-matched pair of Series 180 small-diaphragm cardioid condenser microphones in classic satin nickel, selected so both capsules track each other closely for accurate stereo and surround recording. A classical duo miking a grand piano, a choir engineer setting an ORTF pair, or a drum-overhead rig all depend on two mics that behave identically, and that consistency is what a matched set guarantees. Each microphone carries the same transformerless Series 180 electronics and the same frequency-independent cardioid capsule found in the single KM 184. Acoustically it is the matte KM 184 mt Stereo Set in nickel dress.

Nickel or Matte: A Cosmetic Choice

The only difference from the matte black set is finish: nickel is the traditional studio look many engineers prefer on visible stands and in control-room video. Both pairs use identical capsules and electronics, so the choice is purely cosmetic and situational. Stages and film sets often favor matte to avoid reflections, while classical studios lean toward the classic nickel appearance. Neither changes how the pair images or sounds.

Imaging That Holds Together

Because the cardioid pattern stays uniform across the spectrum, off-axis sound arrives lower in level but tonally intact, which is the foundation of a believable stereo picture in XY, ORTF, or spaced setups. Matched sensitivity between the two capsules keeps the center image where it belongs instead of drifting to one side. Strong rear rejection holds unwanted room and bleed out of the picture, keeping the stereo field clean. That predictability is exactly what coincident techniques require.

Presence, Neutrality, and a Clean Circuit

Each capsule carries the Series 180's gentle presence lift of about 9 kHz, lending cymbals, strings, and room ambience air and detail without harshness. Beneath that lift the response stays neutral, so the pair captures the source honestly. Transformerless head-amplifier electronics keep both channels clean and low in distortion. The compact 4.2-inch pencil bodies are easy to rig on a stereo bar or as a spaced pair.

The Numbers That Matter

Per capsule, the set delivers 13 dB-A of self-noise, a 138 dB maximum SPL, a 125 dB dynamic range, and 15 mV/Pa sensitivity, with an 81 dB signal-to-noise ratio. That combination of a quiet floor and high headroom covers both pianissimo passages and loud sources without changing tools. A frequency response of 20 Hz to 20 kHz spans the full audible band across both channels. Each mic runs on 48V phantom power over a balanced XLR 3-pin output at 50 ohms.

In the Box and Who It's For

The set includes two KM 184 microphones in nickel, two WNS 100 windscreens, and two SG 21 bk swivel mounts, ready to deploy as a matched pair. It suits the classical and acoustic recordist who wants a proven coincident pair and prefers the traditional nickel look. Studios shooting control-room video or building a permanent classical rig gravitate to this finish. For accurate, repeatable stereo with a classic appearance, this is the Neumann cardioid pair to choose.