What we know about the measurement:

Quad Electroacoustics ESL-57 is a passive panel

  • Quality of the measurement data is low.
  • Origin of the data is Princeton.
  • Format of the data is .
  • Link to Original review.
Quad Electroacoustics ESL-57
AutomaticEQ (IIR)
Set preamp gain to: -0.1dB.
Type Freq Q Gain
PK 22.0 0.38 -8.61
PK 29.0 0.27 -8.88
PK 34.0 0.43 -8.86
PK 47.0 0.27 -8.71
PK 1288.0 1.12 -2.16
PK 2670.0 1.18 1.08
PK 13186.0 0.68 -6.85
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Quad Electroacoustics ESL-57
Graphic EQ 15 bands
Set preamp gain to: -1.4dB.
Type Freq Q Gain
PK 25.0 2.14 0.0
PK 40.0 2.14 0.0
PK 63.0 2.14 0.0
PK 100.0 2.14 0.0
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
PK 400.0 2.14 0.0
PK 630.0 2.14 0.5
PK 1000.0 2.14 0.5
PK 1600.0 2.14 0.5
PK 2500.0 2.14 1.0
PK 4000.0 2.14 1.0
PK 6300.0 2.14 1.0
PK 10000.0 2.14 0.75
PK 16000.0 2.14 0.5
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This EQ is designed for a 15 bands graphical EQ.
Quad Electroacoustics ESL-57
Graphic EQ 31 bands
Set preamp gain to: -1.4dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.0
PK 31.0 4.32 0.0
PK 40.0 4.32 0.0
PK 50.0 4.32 0.0
PK 63.0 4.32 0.0
PK 80.0 4.32 0.0
PK 100.0 4.32 0.0
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 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
PK 500.0 4.32 0.0
PK 630.0 4.32 0.5
PK 800.0 4.32 0.5
PK 1000.0 4.32 0.5
PK 1250.0 4.32 0.5
PK 1600.0 4.32 0.5
PK 2000.0 4.32 0.5
PK 2500.0 4.32 0.75
PK 3150.0 4.32 1.0
PK 4000.0 4.32 0.75
PK 5000.0 4.32 1.0
PK 6300.0 4.32 0.75
PK 8000.0 4.32 0.5
PK 10000.0 4.32 0.5
PK 12000.0 4.32 0.25
PK 16000.0 4.32 0.5
PK 20000.0 4.32 0.0
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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)
Quad Electroacoustics ESL-57: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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