17,00 EUR

7 Inch test record


7 Inch testrecord for usage with platterspeed for iOS and Android.
Face A:
  • 3.15 kHz test tone - speed adjustment
  • 1 kHz test tone out of phase - vertical cut for measuring THD

Face B:
  • 315 Hz test tone +10 up to +16 dB - antiskating - we recommend to set the compensation values found to half as this gives the best overall compromise
  • endless loop - silent groove
  • 1 kHz stereo - left only - right only - crosstalk/azimuth - not compatible with Adjust+ 12 inch version!
  • 3-15 Hz in 1 Hz steps - visual control of resonant frequency




  • As for wow&flutter measurements we strongly recommend to place your cell phone at a fixed place. Any movement will detoriate the measurement due to the occuring Doppler-effect! Records that show excentricity also should not be used for wow&flutter analysis.

    Warps of ±1 mm will cause a theoretical error of ±0.01% in wow & flutter and are not very critical. However, we have found an all new way to flatten the records we do have in stock to less than ±0.25 mm approx.

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