What we know about the measurement:

Altec Lansing Soundrower Pro 650 is an active floorstanders that cost around 230 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. 56.4Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 8.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 0.09 and would be 2.64 with a perfect subwoofer.
      • Details: NBD: ON 1.221, LW 1.177, SP 1.103, PIR 1.13; SM: SP0.699, PIR0.593; LFQ 2.192, LFX 56Hz
    • Tonality (Preference) Score is 2.7 with an EQ and would be 5.17 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.914, LW 0.836, SP 0.747, PIR 0.761; SM: SP0.926, PIR0.879; LFQ 2.192, LFX 54Hz
  • Link to original Review: yt review. .
  • Vendor specifications:
    • Size
      • Width 457mm
      • Height 801mm
      • Depth 558mm
    • Weight 20kg
Altec Lansing Soundrower Pro 650
AutomaticEQ (IIR)
Set preamp gain to: -1.4dB.
Type Freq Q Gain
PK 92.0 1.52 -4.86
PK 211.0 3.0 3.0
PK 243.0 3.0 -4.88
PK 439.0 3.0 -3.53
PK 540.0 3.0 3.0
PK 1954.0 1.2 3.0
PK 4495.0 0.5 -6.49
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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