Hsu Research MFL-6 is a passive bookshelves that cost around 280 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity:
    • Measured: 85.6 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 77.6Hz (resp. 51.3Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 6.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 3.55 and would be 5.69 with a perfect subwoofer.
      • Details: NBD: ON 0.713, LW 0.627, SP 0.522, PIR 0.509; SM: SP0.86, PIR0.564; LFQ 0.831, LFX 45Hz
    • Tonality (Preference) Score is 5.94 with an EQ and would be 7.74 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.463, LW 0.385, SP 0.365, PIR 0.315; SM: SP0.963, PIR0.932; LFQ 0.831, LFX 38Hz
  • Link to original Review: asr review. .
Hsu Research MFL-6

Vendor specifications

  • Impedance 8 Ohm
  • Size
    • Width 203mm
    • Height 390mm
    • Depth 146mm
  • Weight 5.9kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -3.1dB.
Type Freq Q Gain
PK 80.0 0.42 4.83
PK 144.0 0.8 -5.35
PK 382.0 2.86 1.01
PK 487.0 2.11 -2.05
PK 3405.0 1.32 4.93
PK 4654.0 1.33 -7.48
PK 9648.0 1.39 -2.86
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Quick config:
Quick config:
Quick config:
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