What we know about the measurement:

Pioneer SP-BS22-LR is a passive bookshelves that cost around 160 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 64.5Hz (resp. 60.1Hz).
  • Reference level is normalised to -0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.91 and would be 7.52 with a perfect subwoofer.
      • Details: NBD: ON 0.452, LW 0.408, SP 0.352, PIR 0.321; SM: SP0.934, PIR0.831; LFQ 0.335, LFX 58Hz
    • Tonality (Preference) Score is 5.87 with an EQ and would be 8.41 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.313, LW 0.278, SP 0.296, PIR 0.224; SM: SP0.96, PIR0.941; LFQ 0.335, LFX 56Hz
  • Link to Original review.
Pioneer SP-BS22-LR
AutomaticEQ (IIR)
Set preamp gain to: -3.6dB.
Type Freq Q Gain
PK 117.0 1.19 0.74
PK 207.0 1.36 -0.88
PK 432.0 2.9 -0.09
PK 584.0 1.38 0.87
PK 1103.0 1.4 -2.1
PK 2545.0 1.96 -2.25
PK 3801.0 1.7 1.08
PK 8199.0 2.87 2.24
LS 15474.0 0.99 1.4
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Pioneer SP-BS22-LR
flipflop@ASR (IIR)
Set preamp gain to: -1.5dB.
Type Freq Q Gain
PK 477.0 9.0 0.6
PK 610.0 5.0 0.5
PK 757.0 9.0 -0.6
PK 1005.0 15.0 -0.8
PK 1066.0 2.341 -1.6
PK 1093.0 10.0 0.6
PK 1810.0 20.0 -0.6
PK 1867.0 1.0 -1.2
PK 1993.0 5.0 1.0
PK 2362.0 5.0 -1.7
PK 2836.0 4.159 -1.6
PK 5850.0 12.0 0.6
PK 7000.0 7.0 -1.1
PK 7960.0 10.0 1.0
PK 7996.0 5.0 1.3
PK 8830.0 15.0 -0.8
PK 9700.0 14.0 1.0
PK 10820.0 7.0 -0.9
PK 11656.0 1.0 -1.0
PK 15120.0 4.0 -1.1
Download
This EQ is designed by ASR member flipflop.
Pioneer SP-BS22-LR
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.5
PK 100.0 2.14 0.5
PK 160.0 2.14 0.25
PK 250.0 2.14 0.25
PK 400.0 2.14 0.25
PK 630.0 2.14 0.25
PK 1000.0 2.14 -0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 -0.5
PK 4000.0 2.14 0.5
PK 6300.0 2.14 0.5
PK 10000.0 2.14 0.25
PK 16000.0 2.14 0.25
Download
This EQ is designed for a 15 bands graphical EQ.
Pioneer SP-BS22-LR
Graphic EQ 31 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.25
PK 63.0 4.32 0.25
PK 80.0 4.32 0.25
PK 100.0 4.32 0.25
PK 125.0 4.32 0.25
PK 160.0 4.32 0.25
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
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 0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 -0.25
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 0.25
PK 5000.0 4.32 0.25
PK 6300.0 4.32 0.25
PK 8000.0 4.32 0.5
PK 10000.0 4.32 0.25
PK 12000.0 4.32 0.25
PK 16000.0 4.32 0.25
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)
Pioneer SP-BS22-LR: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
;