Test report FiiO X7 II: Fast Roll-Off Linear phase (report for a pro)

About this report

This is a report for professionals with a suite of tests for line output devices. Alternative version of the report for "dummies" in development.

One device can have multiple reports in different modes and with different a suite of tests.

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 of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Frequency response

Graphics setting view

Frequency band, Hz:

20 - 20к 5 - 96k

Range, dB:

90 50 24

General results

General results FiiO X7 II Fast Roll-Off Linear phase

Channel

Center/Summary

Variation in frequency response in band from 100 Hz to 10 kHz, dB

-0,06, 0,03

The table shows a most important technical characteristics of FiiO X7 II Fast Roll-Off Linear phase

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

Test conditions

Measured by RAA with ADC from E-MU1616m
During tests RAA measuring complex was used galvanic isolated power transformer and was excluded the effect of ground loop in the spectra

The tags (specifications) for this report are:

Type of device : Headphones Wireless headphones Internal sound cards USB-DAC DACs Combines with USB Smartphones Players Headphones with active amplification External sound cards Headphone Amplifiers with Line In Laptops & Tablets Combines with SPDIF Motherboards Displays Bluetooth-in
Mobility : Stationary Portable / mobile
DAC Test Set : Base Spectra of the amplitude Multitones only imp Soft players and USB transports

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Detailed measurements report of technical characteristics

Report content

Frequency response

Impulse response
Step response
Impulse Response Envelope (ETC - Energy Time Curve)
Aliasing

Spectra of high resolution

Frequency response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Graphics setting view

Frequency band, Hz:

20 - 20к 5 - 96k

Range, dB:

90 50 24

Channel:

Center Left Right Left Right

Brief information

Translation of the description is not yet ready

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

Table of measured characteristics

Frequency response FiiO X7 II Fast Roll-Off Linear phase

Channel

Left

Right

Variation in frequency response in band from 100 Hz to 10 kHz, dB

-0,05, 0,03

-0,06, 0,03

Impulse response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Graphics setting view

Time, ms:

1ms 2ms

Channel:

Left Right Left Right

Brief information

During the test, played a pulse with a sampling frequency of 44.1 kHz and the recording is performed with a sampling frequency of 192 kHz / 24-bit

The impulse response can identify the type of digital filter DAC.

it is a translation from the Russian language. The original text of the report in Russian. Suggest alternative translation possible through the forum, feedback or select text and press Ctrl+Enter (anonymously).

Impulse Response Envelope (ETC - Energy Time Curve) of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Graphics setting view

Time, ms:

1ms 2ms

Range, dB:

120 90

Channel:

Left Right Left Right

Brief information

Translation of the description is not yet ready

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

Step response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Graphics setting view

Time, ms:

1ms 2ms

Channel:

Left Right Left Right

Brief information

Translation of the description is not yet ready

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

Aliasing of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Graphics setting view

Channel:

Center Left Right Left Right

Type test:

All multy50 noise imp

Brief information

Translation of the description is not yet ready

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

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Test report FiiO X7 II: Fast Roll-Off Linear phase (report for a pro)

Test report - general data of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Frequency response

Detailed measurements report of technical characteristics

Report content

Spectra of high resolution

Frequency response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Impulse response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Impulse Response Envelope (ETC - Energy Time Curve) of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Step response of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

Aliasing of FiiO X7 II Fast Roll-Off Linear phase as Line Out mode

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