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Test report FiiO X7: AM2 (Test report)

Total reports 4 from FiiO X7
DAC Line Out
Headphone amplifier: AM1 | AM2 | AM2 OLD FW

Test report - general data the headphone amplifier FiiO X7 AM2

Frequency response, Impedance and Frequency response with standard headphones


Graphics setting view
Range, dB:

General results
FiiO X7 AM2
Channel
Center/Summary
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,27, 0,03
Average value of impedance band in 40 Hz to 15 kHz, Ohm
0,1
Max voltage output
VRMS
dBV
Clear or equal class A?
0,03
-30,26
Optimal or equal class AB?
3,07
9,74
3,07
9,74
Maximum current output at loaded
Ohm
mA
Clear or equal class A?
15,8
1,93
Optimal or equal class AB?
30,5
50,18
15,8
121,71
15,8
121,71
Max power output
Ohm
mW
dBm
Clear or equal class A?
15,8
0,06
-12,30
Optimal or equal class AB?
62,4
150,49
21,77
30,5
305,98
24,86
30,5
305,98
24,86

The table shows the most important technical characteristics FiiO X7 AM2

*Center channel is received by data averaging between the left and right channels

Calculate sound pressure level in headphones with online calculator with data entered from the table for FiiO X7 AM2

Test conditions

The report contains the complete data
Version report: V4

Reports and testing methodology is gradually updated. We try to generate the report in such a way that it would have been a single kind of report for all products, convenient for direct comparison.

We constantly introduce new tests and improving the options for displaying graphs and parameters. It introduces different changes in reports. Because reports are generated automatically, the updates do not take much time.

In the development and implementation of new tests, new reports are more complete. To update some charts and tables may require additional time to process the raw data separately for each product.

Some products require re-testing.

The history of the development of the report:
CloseMore detailed
Version report: V1
  • Frequency response
  • Impedance
  • Frequency response with loaded resistors
  • Variation in frequency response dependence of load dynamic type headphones
  • Frequency response vs load balance armature headphone type (one driver)
  • Variation in frequency response vs load balance armature headphone type (one driver)
Version report: V2
  • Maximum voltage output level vs load
  • Maximum current level output vs load
  • Maximum power level output level vs load
Version report: V3
  • THD vs load vs output voltage
  • Harmonic distortion spectrum vs amplitude vs loaded
Version report: V4
  • Crosstalk
  • Crosstalk Phase
  • Spectrum of IMD SMPTE vs Level
  • Spectrum of IMD CCIF vs Level
  • Spectrum of Multitone Distortion vs Level vs Load


 All reports this product

Report content



Comparison of basic characteristics

How much are the characteristics of FiiO X7 AM2 different from other models?
This can be compared for all measured amplifiers

In the general table, you can compare the characteristics: Sort and select by the manufacturers.


Подбор по характеристикам

You can use the automatic selection of the optimal headphone models for FiiO X7 AM2 from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.

During the selection of headphones, they are selected according to the characteristics and on a five-point scale are estimated the optimal bundles of headphones and FiiO X7 AM2. The selection takes into account the power characteristics of the amplifier, the sensitivity and resistance of the headphones, as well as the conditions in which the bundle will be used: at home, in the studio, on the street, in the subway, etc. The compatibility analysis is similar to car analysis based on its clearance - on which road the car will optimally go without evaluating the class of the car. The selection method by characteristics is developed in RAA.

Comparison of the power characteristics of the amplifiers and the determination of the required voltage level for the headphones from the amplifier

How does the power graph from differ from other models and what is the interaction with the headphones?
Compare the graphs on-line with an additional analytic of compatibility with headphones.

Graph of output voltage by power characteristics in different modes. Comparison on-line with other amplifiers. Estimating the sufficiency of the modes for the selected headphones by volume level.

Comparison of amplifiers by loudness (Volume Level)

How much Volume Level different from other models?
Comparison Volume Level on-line.

Comparison of amplifiers taking into account the peculiarity of the musical signal for two assignable loads (headphone impedances).




Detailed measurements report of technical characteristics

Frequency response the headphone amplifier FiiO X7 AM2


Graphics setting view
Range, dB:
Channel:

Frequency response FiiO X7 AM2
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,11, 0,02
-0,12, 0,02

Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Impedance the headphone amplifier FiiO X7 AM2


Graphics setting view
Channel:

Impedance FiiO X7 AM2
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, Ohm
0,1
0,1
Resistance at 500 Hz, Ohm
0,1
0,1
Resistance at 1000 Hz, Ohm
0,1
0,1
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
14028,9
14028,9
The minimum value in band from 40 Hz to 15 kHz, Ohm
0,1
0,1
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
107,7
52,6
The maximum value in band from 40 Hz to 15 kHz, Ohm
0,1
0,1

Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Crosstalk the headphone amplifier FiiO X7 AM2


Graphics setting view
Range, dB:
Channel:
Load, Ohm:


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Frequency response with loaded resistors from FiiO X7 AM2


Graphics setting view
Range, dB:
Channel:

Frequency response of amplifier the headphone amplifier FiiO X7 AM2
with resistive load
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 Ohm, dB
0,01
Variation in frequency response in band 40 Hz to 15 kHz loaded 32 Ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 50 Ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 100 Ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 250 Ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 600 Ohm, dB
0,00

*Center channel is received by data averaging between the left and right channels


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Frequency response the headphone amplifier FiiO X7 AM2 load dynamic headphone type


Graphics setting view
Range, dB:
Channel:

Frequency response of the headphone amplifier FiiO X7 AM2
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,34

*Center channel is received by data averaging between the left and right channels


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Deviation of frequency response the headphone amplifier FiiO X7 AM2 load dynamic headphone type


Graphics setting view
Range, dB:
Channel:

Frequency response of amplifier FiiO X7 AM2
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,01

*Center channel is received by data averaging between the left and right channels


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Frequency response the headphone amplifier FiiO X7 AM2 loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:

Frequency response of amplifier FiiO X7 AM2
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,32

*Center channel is received by data averaging between the left and right channels


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Deviation of frequency response the headphone amplifier FiiO X7 AM2 loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:

Frequency response of amplifier FiiO X7 AM2
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,05

*Center channel is received by data averaging between the left and right channels


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Maximum voltage output level vs load FiiO X7 AM2


Graphics setting view
Channel:



Maximum voltage output level vs load FiiO X7 AM2 (the source data for the spectra)
Level
VRMS
dBV
VRMS
dBV
VRMS
dBV
VRMS
dBV
loaded 16 Ohm
0,03
-30,32
0,77
-2,32
1,92
5,68
1,92
5,68
loaded 25 Ohm
0,03
-30,30
1,08
0,70
2,72
8,70
2,72
8,70
loaded 31 Ohm
0,03
-30,30
1,53
3,70
3,05
9,70
3,05
9,70
loaded 62 Ohm
0,03
-30,27
3,06
9,73
3,06
9,73
3,06
9,73
loaded 100 Ohm
0,03
-30,27
3,07
9,73
3,07
9,73
3,07
9,73
loaded 199 Ohm
0,03
-30,26
3,07
9,74
3,07
9,74
3,07
9,74
loaded 300 Ohm
0,03
-30,26
3,07
9,74
3,07
9,74
3,07
9,74
loaded 763 Ohm
0,03
-30,27
3,07
9,73
3,07
9,73
3,07
9,73
Not loaded
0,03
-30,27
3,06
9,72
3,06
9,72
3,06
9,72


Calculate sound pressure level in headphones with online calculator with data entered from the table for FiiO X7 AM2

Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Maximum current level output vs load FiiO X7 AM2


Graphics setting view
Channel:



Maximum current level output vs load FiiO X7 AM2 (the source data for the spectra)
Level, mA
Optimal or equal class AB?
Level
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
loaded 16 Ohm
1,93
5,71
48,46
33,71
121,71
41,71
121,71
41,71
loaded 25 Ohm
1,25
1,92
44,26
32,92
111,16
40,92
111,16
40,92
loaded 31 Ohm
1,00
0,02
50,18
34,01
100,16
40,01
100,16
40,01
loaded 62 Ohm
0,49
-6,18
49,11
33,82
49,11
33,82
49,11
33,82
loaded 100 Ohm
0,31
-10,27
30,66
29,73
30,66
29,73
30,66
29,73
loaded 199 Ohm
0,15
-16,23
15,43
23,77
15,43
23,77
15,43
23,77
loaded 300 Ohm
0,10
-19,81
10,22
20,19
10,22
20,19
10,22
20,19
loaded 763 Ohm
0,04
-27,92
4,02
12,08
4,02
12,08
4,02
12,08
Not loaded
0,00
-64,25
0,06
-24,26
0,06
-24,26
0,06
-24,26



Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



Maximum power level output level vs load FiiO X7 AM2


Graphics setting view
Channel:



Maximum power level output level vs load FiiO X7 AM2 (the source data for the spectra)
Level
mW
dBm
mW
dBm
mW
dBm
mW
dBm
loaded 16 Ohm
0,06
-12,30
37,10
15,69
234,06
23,69
234,06
23,69
loaded 25 Ohm
0,04
-14,19
47,99
16,81
302,76
24,81
302,76
24,81
loaded 31 Ohm
0,03
-15,14
76,81
18,85
305,98
24,86
305,98
24,86
loaded 62 Ohm
0,02
-18,22
150,49
21,77
150,49
21,77
150,49
21,77
loaded 100 Ohm
0,01
-20,27
94,02
19,73
94,02
19,73
94,02
19,73
loaded 199 Ohm
0,00
-23,25
47,36
16,75
47,36
16,75
47,36
16,75
loaded 300 Ohm
0,00
-25,04
31,36
14,96
31,36
14,96
31,36
14,96
loaded 763 Ohm
0,00
-29,09
12,33
10,91
12,33
10,91
12,33
10,91
Not loaded
0,00
-47,26
0,19
-7,27
0,19
-7,27
0,19
-7,27



Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.



THD vs load vs output voltage FiiO X7 AM2


Graphics setting view
Channel:
Load, Ohm:
Type test:


Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Spectrum of Total Harmonic Distortion vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of IMD SMPTE vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV:

Loaded 15,8 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 24,5 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 30,5 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 62,4 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 100 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 198,9 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 300 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 763 Ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of IMD CCIF vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of Multitone Distortion vs Level vs Load the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:
Type test:

Loaded 15,8 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 24,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 30,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 62,4 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 100 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 198,9 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 300 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 763 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of Noise Distortion vs Level vs Load the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 Ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Total reports 4 from FiiO X7
DAC Line Out
Headphone amplifier: AM1 | AM2 | AM2 OLD FW