This is a report for professionals with a suite of tests for line output devices. Alternative version of the report for "dummies" in development.
A suite of tests for the line-out can be used for headphone or speaker output if in this mode it is possible to use the device as a source for connecting an external amplifier or if such a test suite can give more information about the implementation of the DAC in the device.
Test report - general data Lenovo G770 (as Line Out mode)
Max voltage output at 0 dBFS
1.2
dBV
1.2
VRMS
Brief information
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Frequency response Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Frequency band
Type test:
Brief information
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Impulse response Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Duration for impulse, envelope and step responses
Graphics setting view
Channel
Duration for impulse, envelope and step responses
Brief information
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Aliasing Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Type test:
Brief information
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Harmonic Distortion vs Level Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Comparison by
Harmonic, number
Brief information
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Crosstalk Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Brief information
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Spectrum of Total Harmonic Distortion (THD) Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Level @ dBFS
Range
Graphics setting view
Channel
Level @ dBFS
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectra Lenovo G770 24 bit (as Line Out mode)
Spectrum of Dynamic Range (-60 dBFS)
Graphics setting view
Channel
Range
Sine low ammplitude spectrum -90 dBFS
Graphics setting view
Channel
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Multitone Distortion Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Level @ dBFS
Range
Graphics setting view
Channel
Range
Level @ dBFS
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Intermodulation Distortion (IMD) - SMPTE Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Level @ dBFS
Range
Range
Graphics setting view
Channel
Level @ dBFS
Range
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Intermodulation Distortion (IMD) - CCIF Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Level @ dBFS
Range
Graphics setting view
Channel
Level @ dBFS
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Noise Distortion Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Level @ dBFS
Range
Graphics setting view
Channel
Level @ dBFS
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Jitter Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Range
Range
Brief information
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Checking for correctness of reproduction signals depth more than 16-bit Lenovo G770 24 bit (as Line Out mode)
Graphics setting view
Channel
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
More detailed
Measurements of Lenovo G770 24 bit were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Lenovo G770 24 bit test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.
Kuznetsov Roman Founder of RAA
Known by the nickname romanrex Аuthor of articles iXBT.com
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