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 Topping E70 (as Line Out mode)
Max voltage output at 0 dBFS
7.7
dBV
2.4
VRMS
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Frequency response Topping E70 F1 RCA (as Line Out mode)
Graphics setting view
Channel
Range
Frequency band
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Harmonic Distortion vs Level Topping E70 F1 RCA (as Line Out mode)
Graphics setting view
Channel
Comparison by
Harmonic, number
Range
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Crosstalk Topping E70 F1 RCA (as Line Out mode)
Graphics setting view
Channel
Range
Graphics setting view
Channel
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Spectrum of Total Harmonic Distortion (THD) Topping E70 F1 RCA (as Line Out mode)
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 Multitone Distortion Topping E70 F1 RCA (as Line Out mode)
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 Topping E70 F1 RCA (as Line Out mode)
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 Topping E70 F1 RCA (as Line Out mode)
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.
More detailed
Measurements of Topping E70 F1 RCA were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Topping E70 F1 RCA 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
Information for Authors. You can freely use the graphics in your articles with a link to us.
Topping E70 is available in reports and services. You are in a professional report.
Похоже, что следующее направление у Topping - это проф. карты. Если первые E2x2 были "как все", то версии "OTG" довольно интересные.
Суть в том, что есть вход под смартфон (как USB ADC) и есть цифровой выход.
В бюджетные карты Topping пока ставит ЦАП-ы средней паршивости (как и остальные) и за счет доп. цифрового выхода, можно подцепить более массовый ЦАПоусь с более высоким качеством.
Насколько функционален OTG вход, будет интересно посмотреть. может и E1DA Cosmos подцепится.
надо просто в большой красивый корпус USB свисток спрятать и далее слепой тест, победит этот "стационар" или нет другой стационар :)
Не только они делают нормально. Ну и есть какие-то монстры типа их a90d, вот загадка он был сломан или такой и есть.
Видимо е1да всё ж нужно внешнее питание, либо как-то его донастраивать прошивками. Получается уже не такой уж и портатив