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.
Line-out, differences from the output for headphones and speakers
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.
Line-out, differences from the output for headphones and speakers


С 2024 года измерения полноразмерных наушников в RAA проводятся не только на инструментальных стендах, но и вживую с помощью разработанной системы в RAA - Live Measurement System. Это позволяет увидеть реальное поведение наушников и их вариативность звучания относительно стандартных стендов. Результаты таких измерений в отчетах обозначаются как со стендов Human.
Т.к. АЧХ зависит от посадки наушников и их прогрева/износа, то в RAA была разработан универсальный комплект Live Measurement System


More detailed
Measurements of Gustard DAC-X26 PRO Vivid were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Gustard DAC-X26 PRO Vivid 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
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