Measurements for speaker Klipsch Heresy IV

Data

& EQ

Data & EQ
Ref.

Graphs

Reference graphs
EQed

Graphs

EQed graphs
Ref.

v.s. EQ

Reference v.s. EQed

What we know about the measurement:

Klipsch Heresy IV is a passive floorstanders that cost around 2000 USD for a pair.

Quality of the measurement data is high.
Origin of the data is ErinsAudioCorner.
Format of the data is generated by a Klippel NFS .
Sensitivity: 93.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
-3dB (resp. -6db) point v.s. reference is at 77.6Hz (resp. 64.5Hz).
Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
Frequency deviation is 4.1dB over the same frequency range.
Directivity
- Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-20.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
Tonality (Preference) Score
- Tonality (Preference) Score is 1.26 and would be 4.01 with a perfect subwoofer.
  - Details: NBD: ON 0.801, LW 0.674, SP 0.66, PIR 0.604; SM: SP0.445, PIR0.057; LFQ 1.562, LFX 62Hz
- Tonality (Preference) Score is 4.43 with an EQ and would be 6.63 with a perfect subwoofer and the same EQ.
  - Details: NBD: ON 0.651, LW 0.536, SP 0.553, PIR 0.478; SM: SP0.89, PIR0.863; LFQ 1.378, LFX 46Hz
Link to original Review: eac review. .

Klipsch Heresy IV

Type	Freq	Q	Gain
AutomaticEQ (IIR)
Set preamp gain to: -4.2dB.
3	34.0	2.93	3.0
3	80.0	0.25	1.45
3	243.0	1.91	2.97
3	1202.0	2.99	-2.16
3	1954.0	2.96	-2.59
3	7308.0	0.97	-4.1
3	14134.0	2.23	-6.09
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Klipsch Heresy IV filters_auto_eq

AutomaticEQ

Klipsch Heresy IV filters_eq_full

Target v.s. EQ

Klipsch Heresy IV

Type	Freq	Q	Gain
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
3	25.0	2.14	0.5
3	40.0	2.14	0.5
3	63.0	2.14	0.5
3	100.0	2.14	0.0
3	160.0	2.14	0.5
3	250.0	2.14	0.75
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	-0.5
3	2500.0	2.14	0.0
3	4000.0	2.14	-0.5
3	6300.0	2.14	-0.5
3	10000.0	2.14	-0.5
3	16000.0	2.14	-0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Klipsch Heresy IV

Type	Freq	Q	Gain
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
3	20.0	4.32	0.0
3	25.0	4.32	0.5
3	31.0	4.32	0.5
3	40.0	4.32	0.5
3	50.0	4.32	0.5
3	63.0	4.32	0.5
3	80.0	4.32	0.25
3	100.0	4.32	0.0
3	125.0	4.32	0.0
3	160.0	4.32	0.25
3	200.0	4.32	0.5
3	250.0	4.32	0.5
3	315.0	4.32	0.25
3	400.0	4.32	0.0
3	500.0	4.32	0.0
3	630.0	4.32	0.25
3	800.0	4.32	0.0
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	-0.25
3	2500.0	4.32	0.0
3	3150.0	4.32	0.0
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	-0.5
3	16000.0	4.32	-0.25
3	20000.0	4.32	0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Klipsch Heresy IV: comparison between EQs

Klipsch Heresy IV

Comparison betweens various EQs

Klipsch Heresy IV

Improvements made by EQ

CEA2034

On Axis

Early Reflections

Estimated In-Room Response

Horizontal Reflections

Vertical Reflections

SPL Horizontal

SPL Vertical

SPL Horizontal Normalized

SPL Vertical Normalized

SPL Horizontal Contour

SPL Vertical Contour

SPL Horizontal Contour Normalized

SPL Vertical Contour Normalized

SPL Horizontal Contour 3D

SPL Vertical Contour 3D

SPL Horizontal Contour Normalized 3D

SPL Vertical Contour Normalized 3D

SPL Horizontal Radar

SPL Vertical Radar

CEA2034

On Axis

Early Reflections

Estimated In-Room Response

Horizontal Reflections

Vertical Reflections

SPL Horizontal

SPL Vertical

SPL Horizontal Normalized

SPL Vertical Normalized

SPL Horizontal Contour

SPL Vertical Contour

SPL Horizontal Contour Normalized

SPL Vertical Contour Normalized

SPL Horizontal Contour 3D

SPL Vertical Contour 3D

SPL Horizontal Contour Normalized 3D

SPL Vertical Contour Normalized 3D

SPL Horizontal Radar

SPL Vertical Radar

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