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KMR-359 supercardioid directional microphone
KMR-359 · Supercardioid microphone with dedicated preamp
KMR-359 microphoneKMR-359 preamplifier

KMR-359 · Directional microphone

Professional supercardioid directional microphone

KMR-359 is a supercardioid condenser microphone with a dedicated preamp for discreet conversation monitoring and field recording. Adjustable gain from +6 to +66 dB controls amplification, while a 100 Hz high-pass filter reduces low-frequency interference.

  • Supercardioid directional pickup.
  • Adjustable preamp gain from +6 to +66 dB.
  • Frequency response: 40 Hz–20 kHz (±2.5 dB).
  • 122 dB dynamic range.
  • 343 × 22.5 mm body with AAA battery power.

Product code: KMR-359

Price on request

Specify your listening distance and recording equipment.

Technical consultation, training and support.
+39 080 302 6530

Directional audio capture with adjustable gain

Supercardioid condenser capsule

Directional pickup emphasizes sound from the area toward which the microphone is aimed.

Gain up to +66 dB

The dedicated preamp provides adjustment from +6 to +66 dB to set the level for the recording setup.

100 Hz high-pass filter

An 11 dB-per-octave roll-off attenuates low-frequency components that can interfere with speech pickup.

Full description

Supercardioid pickup for remote listening

KMR-359 combines a condenser capsule with a supercardioid polar pattern to capture speech and other sounds from a selected direction. It supports discreet conversation monitoring and location recording where the operator works at a distance from the sound source.

The microphone measures 343 × 22.5 mm, making it practical to reposition during field use. Accurate aiming helps isolate the source of interest; usable listening distance depends on source level, surrounding noise and microphone placement.

Frequency response and dynamic range

A 40 Hz–20 kHz frequency response, specified within ±2.5 dB, covers speech and environmental sound. The microphone has a stated dynamic range of 122 dB and an output impedance of 200 Ω.

These characteristics support a range of recording tasks, from dialogue and live events to wildlife observation. Select the pickup position with both the intended source and nearby competing sounds in mind.

Dedicated preamp and low-frequency filtering

The included preamp offers adjustable gain from +6 to +66 dB. This allows the operator to match amplification to the available signal and the connected recording equipment.

The high-pass filter rolls off low frequencies at 100 Hz with an attenuation slope of 11 dB per octave. It can reduce low-frequency interference during speech pickup; it does not remove every type of background noise.

Battery operation and recording options

AAA battery power supports use away from a fixed power source, with a battery and cable included. Estimated runtime exceeds 150 hours under ideal conditions. Actual runtime varies with use and battery condition.

For recording, consider the DIGICELL recorder or other compact audio recorders. Our team can review the input levels and connections required for the selected setup.

Technical specifications

Acoustic specifications
TransducerCondenser
Polar patternSupercardioid
Frequency response40 Hz–20 kHz (±2.5 dB)
Dynamic range122 dB
Output impedance200 Ω
High-pass filter / roll-off100 Hz; 11 dB/octave
Amplification, power and dimensions
Preamp gainAdjustable from +6 to +66 dB
Power supplyAAA battery
Included equipmentBattery and cable
Dimensions343 × 22.5 mm
Estimated battery runtimeOver 150 hours under ideal conditions. Actual runtime varies with use and battery condition.

Applications

Discreet conversation monitoring

Capture speech from a separate listening position. Supercardioid pickup and adjustable gain help the operator aim and set the level for the available audio signal.

Film, theater and live events

Record dialogue and event sound from a chosen direction. The high-pass filter reduces low-frequency components that can interfere with the recording.

Wildlife observation

Monitor animal calls and environmental sounds without approaching the source. The compact body and battery supply support portable field use.

Technical consultation and support

System selection

Describe the sound source, listening distance and environment so our team can assess the setup.

Recorder matching

Review input levels and connections for the recording equipment you plan to use.

Setup and training

Get guidance on microphone positioning, gain adjustment and power options.

Discuss your requirements

Specify your directional listening kit

Tell us about the environment, listening distance and recorder you plan to use. We can help select the configuration and power option for your application.

Or call us: +39 080 302 6530