What we know about the measurement:

Monoprice Monolith THX-365C is a passive center that cost around 500 USD

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 89.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 82.0Hz (resp. 67.4Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.3dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-80.0°, 80.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-70.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.45 and would be 7.45 with a perfect subwoofer.
      • Details: NBD: ON 0.5, LW 0.402, SP 0.405, PIR 0.342; SM: SP0.884, PIR0.877; LFQ 1.461, LFX 71Hz
    • Tonality (Preference) Score is 5.6 with an EQ and would be 8.22 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.378, LW 0.251, SP 0.302, PIR 0.218; SM: SP0.896, PIR0.919; LFQ 1.239, LFX 58Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
Monoprice Monolith THX-365C
AutomaticEQ (IIR)
Set preamp gain to: -2.7dB.
Type Freq Q Gain
3 62.0 1.33 2.99
3 130.0 1.89 -2.57
3 243.0 2.75 1.3
3 279.0 2.24 -1.0
3 2491.0 2.54 1.01
3 3068.0 2.96 -1.72
3 9001.0 2.97 -1.14
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Monoprice Monolith THX-365C filters_auto_eq

AutomaticEQ

Monoprice Monolith THX-365C filters_eq_full

Target v.s. EQ

Monoprice Monolith THX-365C
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.0
3 160.0 2.14 -0.25
3 250.0 2.14 0.25
3 400.0 2.14 0.0
3 630.0 2.14 0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 0.0
3 6300.0 2.14 0.25
3 10000.0 2.14 0.25
3 16000.0 2.14 0.5
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These EQ is designed for a 15 bands graphical EQ.

Monoprice Monolith THX-365C
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.75
3 100.0 4.32 0.0
3 125.0 4.32 -0.5
3 160.0 4.32 -0.25
3 200.0 4.32 0.0
3 250.0 4.32 0.0
3 315.0 4.32 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.0
3 800.0 4.32 -0.25
3 1000.0 4.32 -0.25
3 1250.0 4.32 -0.25
3 1600.0 4.32 -0.25
3 2000.0 4.32 0.0
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.5
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.25
3 10000.0 4.32 -0.25
3 12000.0 4.32 0.0
3 16000.0 4.32 0.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Monoprice Monolith THX-365C: comparison between EQs
Monoprice Monolith THX-365C

Comparison betweens various EQs

Monoprice Monolith THX-365C

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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