Measurement's report Smabat ST 10s - Reference Audio Analyzer

Reports / Smabat / ST 10s - report for a pro

Smabat ST 10s (report for a pro)



Test report - general data Smabat ST 10s headphone

Frequency response, Impedance, Frequency response with standard AMPs

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Perception of headphone frequency response curves of equal loudness ISO 226-2009

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Sensitivity average in band from 100 Hz - 10 kHz129.1dB/V SPL
115.3dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz41.8ohm
For 90 dB SPL, a voltage is required-39.1dBV
0.011VRMS
Taking into account the peak factor of 9 dB for the music signal-30.1 dBV
0.031VRMS
Measurements were performed on the stand:SIEC






Frequency response and sensitivity headphones Smabat ST 10s headphone

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Channel

Frequency band

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz128.9 129.2dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz115.1115.4 dB/mW SPL
Sensitivity at 1 kHz131.3133.0dB/V SPL
Sensitivity at 500 Hz127.3128.7dB/mW SPL


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Frequency response of headphone Smabat ST 10s headphone

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Channel

Range

Frequency band

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -16.3, +9.4-18.2, +8.8dB


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Impedance Smabat ST 10s headphone

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Channel

Frequency band

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz42.1 41.6ohm
Resistance at 1 kHz40.8 40.6ohm
Resistance at 500 Hz41.2 41.0ohm
The minimum value in band from 40 Hz - 15 kHz40.4 40.2ohm
The maximum value in band from 40 Hz - 15 kHz45.7 44.4ohm


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Electric phase Smabat ST 10s headphone

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Channel

Range

Frequency band

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz1.0 1.4degree
Phase at 1 kHz0.3 0.2degree
Phase at 500 Hz-1.2 -0.8degree
The minimum value in band from 40 Hz - 15 kHz-2.5 -1.8degree
The maximum value in band from 40 Hz - 15 kHz9.1 9.2degree




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Perception of headphone frequency response curves of equal loudness ISO 226-2009

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Channel

Range

Variation in frequency response in band from 30 Hz - 12 kHz
Channel:LeftRight
Deviation -36.0 dB-23.7, +17.9 (41.6)-26.4, +17.8 (44.2)dB
Deviation -24.0 dB-19.5, +15.9 (35.4)-22.2, +15.8 (38.0)dB
Deviation -12.0 dB-15.3, +14.0 (29.3)-18.0, +13.9 (31.8)dB
Deviation 0.0 dB-13.7, +12.1 (25.8)-15.2, +11.9 (27.0)dB
Deviation 12.0 dB-14.4, +10.2 (24.6)-15.9, +9.9 (25.8)dB
Deviation 24.0 dB-15.1, +8.3 (23.4)-16.7, +8.0 (24.7)dB
Deviation 36.0 dB-15.8, +6.5 (22.3)-17.5, +6.1 (23.6)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-23.7, +17.9 (41.6)-26.4, +17.8 (44.2)dB
Deviation -24.0 dB-19.5, +15.9 (35.4)-22.2, +15.8 (38.0)dB
Deviation -12.0 dB-15.3, +14.0 (29.3)-18.0, +13.9 (31.8)dB
Deviation 0.0 dB-13.7, +12.1 (25.8)-15.2, +11.9 (27.0)dB
Deviation 12.0 dB-14.4, +10.2 (24.6)-15.9, +9.9 (25.8)dB
Deviation 24.0 dB-15.1, +8.3 (23.4)-16.7, +8.0 (24.7)dB
Deviation 36.0 dB-15.8, +6.5 (22.3)-17.5, +6.1 (23.6)dB


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Frequency response Smabat ST 10s headphone when connected to amplifiers with constant output impedance

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
0.1 ohm @ Smabat ST 10s + Topping EX5 Hi Gain -18.8, +7.1-21.9, +5.1dB
10.1 ohm @ Smabat ST 10s + ASUS Essence One -18.7, +7.2-21.9, +5.1dB
22.1 ohm @ Smabat ST 10s + E-MU 1616m -18.7, +7.3-21.9, +5.1dB
50.0 ohm @ Smabat ST 10s + Behringer MicroAmp Ha400 -22.8, +5.4-25.9, +2.0dB
98.7 ohm @ Smabat ST 10s + ASUS STRIX RAID PRO Hi -18.7, +7.5-21.9, +5.0dB
298.5 ohm @ Smabat ST 10s + Gigabyte GA-A75-UD4H Realtek ALC889A -18.7, +7.6-21.8, +5.0dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
0.1 ~ 0 ohm @ Smabat ST 10s + Topping EX5 Hi Gain 0.00.0dB
10.1 ~ 0 ohm @ Smabat ST 10s + ASUS Essence One 2.12.1dB
22.1 ~ 0 ohm @ Smabat ST 10s + E-MU 1616m 4.14.1dB
50.0 ~ 0 ohm @ Smabat ST 10s + Behringer MicroAmp Ha400 6.86.8dB
98.7 ~ 0 ohm @ Smabat ST 10s + ASUS STRIX RAID PRO Hi 11.311.3dB
298.5 ~ 0 ohm @ Smabat ST 10s + Gigabyte GA-A75-UD4H Realtek ALC889A 19.219.1dB


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Frequency response Smabat ST 10s headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
Smabat ST 10s + Topping EX5 Hi Gain -18.8, +7.1-21.9, +5.1dB
Smabat ST 10s + Colorful Colorfly C4 Pro Jack 6.3 -18.8, +7.1-21.9, +5.1dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
Smabat ST 10s + Topping EX5 Hi Gain 0.00.0dB
Smabat ST 10s + Colorful Colorfly C4 Pro Jack 6.3 2.12.1dB


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Impulse response Smabat ST 10s headphone

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Channel

Duration for impulse, envelope and step responses

Waveforms

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Square wave Smabat ST 10s headphone

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