What we know about the measurement:

Rockville RockTower 68B is a passive floorstanders that cost around 110 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 60.1Hz (resp. 52.7Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 10.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.04 and would be 2.43 with a perfect subwoofer.
      • Details: NBD: ON 1.366, LW 1.0, SP 0.702, PIR 0.674; SM: SP0.518, PIR0.071; LFQ 0.334, LFX 54Hz
    • Tonality (Preference) Score is 4.42 with an EQ and would be 5.59 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 1.155, LW 0.761, SP 0.524, PIR 0.428; SM: SP0.914, PIR0.894; LFQ 0.649, LFX 27Hz
  • Link to original Review: eac review. .
  • Vendor specifications:
    • Sensitivity 87.0 dB
    • Impedance 8.0 Ohm
    • Size
      • Width 200.0mm
      • Height 1060.0mm
      • Depth 265.0mm
    • Weight 25.0kg
Rockville RockTower 68B
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
PK 60.0 0.25 3.0
PK 83.0 2.06 -7.83
PK 204.0 3.0 3.0
PK 299.0 1.05 -3.41
PK 820.0 2.99 -2.75
PK 1642.0 3.0 -3.84
PK 7566.0 0.42 -6.71
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
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