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Measurement Microphone Kit for Alpine OPTIM™8 and OPTIM™6


In stock


Capture the most accurate sound system measurements in your vehicle for precise tuning results with Alpine’s OPTIM™8 and OPTIM™6 Processors.

Tune Your System

The KTX-CSP1 Mic Kit makes tuning your system a breeze. The ultra-precision microphone is designed to capture a wide frequency range, meaning you’ll get the most accurate sound measurements for optimal tuning adjustments.

Capture Precise Measurements

The KTX-CSP1 Mic Kit includes a 3.5mm headset jack with a built-in precision microphone and a 6’ (1.8m) auxiliary cable that’s designed to plug directly into Alpine’s OPTIM™8 or OPTIM™6 Processors. This allows for easy microphone movements around the vehicle interior to capture the most accurate sound measurements.


  • 3.5mm headset jack with microphone
  • Recommended use for the PXE-C80-88 (OPTIM™8) and PXE-C60-60 (OPTIM™6)


  • Capsule Type: Precision 6mm electret condenser
  • Polar Response: True Omnidirectional
  • Frequency Response: 18-20,000Hz, ±0.5dB (calibrated)
  • Impedance: 200 ohms
  • Sensitivity at 1kHz into 1kohm: 10 mV/PA (-40 dBV, ref. 0dB=1V/PA)
  • Maximum SPL for 1% THD @ 1k: 127dB
  • S/N ratio: 70 dB (A-Weighted, varies depending on host device)
  • Connector: Gold-plated 3.5mm TRRS
  • Weight: Ultra-light 7.6 grams
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