Encyclopaedia/Microphones/Neumann KM 184

Neumann KM 184

Small-diaphragm condenser pencil mic — the studio standard for acoustic instruments and overheads.

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The KM 184 is the modern descendant of the KM 84 — small-diaphragm cardioid condensers that have been part of orchestral, classical, and high-end acoustic recording since the 60s.

If you've heard a well-recorded acoustic guitar or a clean drum overhead pair on a major label record, there's a good chance there were KM 184s involved.

Specs

Specifications
TypeCondenser (small-diaphragm)
Polar PatternCardioid
Frequency Response20 Hz – 20 kHz
Sensitivity15 mV/Pa
Self-Noise13 dB-A
Max SPL138 dB
ConnectorXLR
Phantom Power+48 V required

Sonic Character

A presence lift around 9 kHz gives the KM 184 a slightly brighter, airier top end than the original KM 84. It sounds clear and detailed without being clinical. Transients are honest — a snare hit reads as a snare hit, not a smoothed-over approximation.

For acoustic instruments, the off-axis response is what makes it special. A pair set up XY or ORTF picks up the room without colouring it, which is unusually difficult to do well.

Where It Earns Its Keep

  • Acoustic guitar (single mic 12th fret, or stereo pair)
  • Drum overheads
  • Hi-hat
  • Orchestral spot mics
  • Choirs and ensembles

Where to Pick Something Else

The KM 184 is a detail mic. On a heavily-distorted electric guitar amp or a kick drum, you don't need detail — you need character. Reach for an SM57 or an RE20 instead.

It's also expensive. The Røde NT5 and Aston Starlight cover similar territory at a fraction of the price. The Neumann sounds better, but the gap is smaller than the price difference suggests.

Recommendations

Further Reading

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