ATC SCM20SL MK2 is a passive bookshelves that cost around 2495 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity:
    • Measured: 69.3 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 170.0Hz (resp. 100.0Hz).
  • Reference level is normalised to 0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.05 and would be 6.03 with a perfect subwoofer.
      • Details: NBD: ON 0.4, LW 0.289, SP 0.333, PIR 0.294; SM: SP0.45, PIR0.1; LFQ 2.187, LFX 122Hz
  • Link to original Review: audiorekr review. .
  • Note: Data is valid above ~200Hz..
ATC SCM20SL MK2

Vendor specifications

  • Dispersion: 80° horizontal and 10° vertical.
  • Impedance 5.5 Ohm
  • SPL
    • peak: 108 dB
  • Size
    • Width 239mm
    • Height 440mm
    • Depth 336mm
  • Weight 18kg

Directivity (-6dB)

Quick config:
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