What we know about the measurement:

Hsu Research HB-1 MK2 is a passive bookshelves that cost around 218 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 74.7Hz (resp. 58.6Hz).
  • Reference level is normalised to -0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.5dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 3.86 and would be 6.33 with a perfect subwoofer.
      • Details: NBD: ON 0.566, LW 0.484, SP 0.404, PIR 0.406; SM: SP0.88, PIR0.551; LFQ 0.29, LFX 54Hz
    • Tonality (Preference) Score is 5.57 with an EQ and would be 7.7 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.466, LW 0.395, SP 0.387, PIR 0.337; SM: SP0.98, PIR0.944; LFQ 0.38, LFX 45Hz
  • Link to Original review.
Hsu Research HB-1 MK2
AutomaticEQ (IIR)
Set preamp gain to: -3.1dB.
Type Freq Q Gain
PK 46.0 2.41 2.89
PK 83.0 2.92 2.19
PK 356.0 2.13 1.67
PK 1202.0 2.99 1.85
PK 1288.0 1.34 -1.59
PK 4051.0 2.8 2.76
PK 14134.0 0.41 -4.51
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Hsu Research HB-1 MK2
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
PK 25.0 2.14 0.75
PK 40.0 2.14 0.75
PK 63.0 2.14 0.75
PK 100.0 2.14 0.25
PK 160.0 2.14 0.0
PK 250.0 2.14 1.0
PK 400.0 2.14 0.25
PK 630.0 2.14 -0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.0
PK 4000.0 2.14 0.5
PK 6300.0 2.14 -0.25
PK 10000.0 2.14 -0.5
PK 16000.0 2.14 -0.75
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This EQ is designed for a 15 bands graphical EQ.
Hsu Research HB-1 MK2
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.75
PK 31.0 4.32 0.75
PK 40.0 4.32 0.75
PK 50.0 4.32 0.75
PK 63.0 4.32 0.75
PK 80.0 4.32 0.5
PK 100.0 4.32 0.25
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 1.0
PK 315.0 4.32 0.25
PK 400.0 4.32 0.25
PK 500.0 4.32 0.25
PK 630.0 4.32 0.0
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.75
PK 5000.0 4.32 0.0
PK 6300.0 4.32 0.0
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.5
PK 16000.0 4.32 -0.75
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
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)
Hsu Research HB-1 MK2: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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