This is a report for professionals with a suite of test of headphone amplifier.
You can see a simple report for "dummies" with explanations of the main characteristics for EVGA Nu Audio

A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".

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

Advantages and disadvantages of balanced amplifiers

Test report - general data EVGA Nu Audio (as headphone amplifier)

Frequency response, Impedance and Frequency response with standard headphones

Voltage levels from the load at the output of the amplifier

Average value of impedance band in 40 Hz - 15 kHz	0.3	ohm
Voltage: Linear Mode / Maximum or before clipping level	13.5/17.5	dBV
	4.7/7.5	V_RMS
Current: Linear Mode / Maximum or before clipping level	38.6/43.2	dB(mA)
	84.8/145.2	mA

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Frequency response EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Range

Channel:	Left	Right
Variation in frequency response in band from 40 Hz - 15 kHz	-0.1, +0.0	-0.1, +0.0	dB

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response

Impedance EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Channel:	Left	Right
Impedance average in band from 40 Hz - 15 kHz	0.3	0.3	ohm
The minimum value in band from 40 Hz - 15 kHz	0.3	0.3	ohm
The maximum value in band from 40 Hz - 15 kHz	0.3	0.3	ohm

Comparison of basic characteristics AMPs

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Crosstalk EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Range

Load

Channel:	Left	Right
Crosstalk @ 1 kHz @ 15.8 ohm	-48.4	-47.3	dB
Crosstalk @ 1 kHz @ 24.5 ohm	-51.9	-50.8	dB
Crosstalk @ 1 kHz @ 30.5 ohm	-53.9	-52.8	dB
Crosstalk @ 1 kHz @ 62.4 ohm	-60.1	-59.1	dB
Crosstalk @ 1 kHz @ 100.0 ohm	-64.1	-63.1	dB
Crosstalk @ 1 kHz @ 198.9 ohm	-70.0	-69.0	dB
Crosstalk @ 1 kHz @ 300.0 ohm	-73.4	-72.3	dB
Crosstalk @ 1 kHz @ 763.0 ohm	-80.8	-80.3	dB
Crosstalk @ 1 kHz @ Not loaded	-100.6	-98.8	dB

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Crosstalk Phase EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Load

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Frequency response EVGA Nu Audio with resistive load

Graphics setting view

Channel

Range

Frequency response of amplifier with resistive load @ 40 Hz - 15 kHz

Channel:	Left	Right
TEST 16 ? + EVGA Nu Audio	0.0	0.0	dB
TEST 32 ? + EVGA Nu Audio	0.0	0.0	dB
TEST 64 ? + EVGA Nu Audio	0.0	0.0	dB
TEST 126 ? + EVGA Nu Audio	0.0	0.0	dB
TEST 256 ? + EVGA Nu Audio	0.0	0.0	dB
TEST 512 ? + EVGA Nu Audio	0.0	0.0	dB

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response

Frequency response EVGA Nu Audio loaded dynamic headphone type

Graphics setting view

Channel

Range

Frequency response of amplifier loaded dynamic headphone type @ 40 Hz - 15 kHz

Channel:	Left	Right
TEST 10000 ? + EVGA Nu Audio	0.0	0.0	dB
Grado GH4 Limited Edition + EVGA Nu Audio	0.1	0.0	dB

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response

Frequency response EVGA Nu Audio loaded type balance armature headphone type

Graphics setting view

Channel

Range

Frequency response of amplifier loaded type balance armature headphone type @ 40 Hz - 15 kHz

Channel:	Left	Right
TEST 10000 ? + EVGA Nu Audio	0.0	0.0	dB
Campfire Audio Andromeda + EVGA Nu Audio	0.6	0.6	dB
Fearless Audio S8F Freedom + EVGA Nu Audio	0.5	0.4	dB

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response

THD vs load vs output voltage EVGA Nu Audio

Graphics setting view

Channel

Load

Harmonic, number

Graphics setting view

Channel

Load

Harmonic, number

Graphics setting view

Channel

Load

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Maximum voltage output level vs load EVGA Nu Audio

Graphics setting view

Type of chart

RAW coordinates

Power characteristics of the	Voltage		Current
	dBV	V_RMS	dB(mA)	mA
Equivalent class A	13.5	4.7	38.6	84.8
Equivalent class AB	17.5	7.5	42.6	134.5
Equivalent class B	17.5	7.5	42.6	134.5
Maximum mode	17.5	7.5	43.2	145.2

Volume Control Type	Digital and Analog
Optimal range of volume control	86.0	dB

Comparison EVGA Nu Audio and another amplifiers by loudness (Volume Level)

Main characteristics of the EVGA Nu Audio

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Maximum voltage output level vs load EVGA Nu Audio

Graphics setting view

Type of chart

RAW coordinates

Maximum Amplifier Voltage Level

Load	Pure or equal class A		Optimal or equal class AB		Hard or equal class B		Max, before clipping
	dBV	V_RMS	dBV	V_RMS	dBV	V_RMS	dBV	V_RMS
15.8 ohm	2.3	1.3	6.3	1.3	6.3	1.3	7.3	1.3
24.5 ohm	6.4	2.1	10.4	2.1	10.4	2.1	10.4	2.1
30.5 ohm	8.4	2.6	12.4	2.6	12.4	2.6	13.4	2.6
62.4 ohm	12.5	4.2	17.5	4.2	17.5	4.2	17.5	4.2
100 ohm	13.5	4.7	17.5	4.7	17.5	4.7	17.5	4.7
198.9 ohm	14.5	5.3	17.5	5.3	17.5	5.3	17.5	5.3
300 ohm	13.5	4.7	17.5	4.7	17.5	4.7	17.5	4.7
763 ohm	13.5	4.7	17.5	4.7	17.5	4.7	17.5	4.7
Not loaded	14.5	5.3	17.5	5.3	17.5	5.3	17.5	5.3

Maximum level of amplifier current

Load	Pure or equal class A		Optimal or equal class AB		Hard or equal class B		Max, before clipping
	dB(mA)	mA	dB(mA)	mA	dB(mA)	mA	dB(mA)	mA
15.8 ohm	38.3	82.6	42.3	130.9	42.3	130.9	43.3	146.9
24.5 ohm	38.6	85.0	42.6	134.8	42.6	134.8	42.6	134.8
30.5 ohm	38.7	86.3	42.7	136.7	42.7	136.7	43.7	153.4
62.4 ohm	36.6	67.2	41.6	119.6	41.6	119.6	41.6	119.6
100 ohm	33.5	47.2	37.5	74.8	37.5	74.8	37.5	74.8
198.9 ohm	28.5	26.7	31.5	37.7	31.5	37.7	31.5	37.7
300 ohm	24.0	15.8	28.0	25.0	28.0	25.0	28.0	25.0
763 ohm	15.9	6.2	19.9	9.8	19.9	9.8	19.9	9.8

Power

Load	Pure or equal class A		Optimal or equal class AB		Hard or equal class B		Max, before clipping
	dBm	mW	dBm	mW	dBm	mW	dBm	mW
15.8 ohm	20.3	107.8	24.3	270.7	24.3	270.7	25.3	340.8
24.5 ohm	22.5	177.2	26.5	445.1	26.5	445.1	26.5	445.1
30.5 ohm	23.6	227.0	27.6	570.2	27.6	570.2	28.6	717.9
62.4 ohm	24.5	282.1	29.5	891.9	29.5	891.9	29.5	891.9
100 ohm	23.5	222.6	27.5	559.0	27.5	559.0	27.5	559.0
198.9 ohm	21.5	141.4	24.5	282.1	24.5	282.1	24.5	282.1
300 ohm	18.7	74.6	22.7	187.3	22.7	187.3	22.7	187.3
763 ohm	14.7	29.4	18.7	73.8	18.7	73.8	18.7	73.8

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 vs Level EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Shift

dBm

Range

Graphics setting view

Channel

Shift

dBV

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 vs Level vs Load EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Shift

dBm

Range

Graphics setting view

Channel

Shift

dBV

Range

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Spectrum of IMD SMPTE vs Level EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Level

Range

Range

Graphics setting view

Channel

Level

Range

Range

Graphics setting view

Channel

Shift

Range

dBm

Range

Graphics setting view

Channel

Shift

Range

dBV

Range

Brief information

Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.

Spectrum of IMD CCIF vs Level EVGA Nu Audio (as headphone amplifier)

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Level

Range

Graphics setting view

Channel

Shift

dBm

Range

Graphics setting view

Channel

Shift

dBV

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 EVGA Nu Audio were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The EVGA Nu Audio 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.

I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a headphones and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.

Nu Audio was given for tests by EVGA

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.

EVGA Nu Audio is available in reports and services. You are in a professional report.

Information for entry level users

report for a newbie

The automatic selection of the optimal AMP models

Information for all

Review

Versus of characteristics

Information for professionals

reports for a pro (Headphone amplifier)

Headphone amplifier

reports for a pro (DAC Line Out)

Comparison of on-line graphs

Quick jump to the schedule in this report:

Original text in Russian page. Translation page is not yet ready

You can help with translation via the: facebook and feedback.

Comments

romanrex
Изображения, медиа и смайлы доступны в исходном чате.
2019-06-02 20:12:01

Комментарий к профессиональному отчету EVGA Nu Audio HP Out Master 33

Это отчет для выхода на наушники, где громкость была снижена через Master регулятор. Значение 33%.

Этот отчет противопоставляется отчету HP Out Vol 67. Там такая же амплитуда на выходе, но через аналоговый регулятор Maxim DS1882.

romanrex
Изображения, медиа и смайлы доступны в исходном чате.
2019-06-02 20:13:08

Комментарий к профессиональному отчету EVGA Nu Audio HP Out Vol 67

Это отчет для выхода на наушники, где громкость была снижена через дополнительный аналоговый регулятор Maxim DS1882. Значение 67%.

Этот отчет противопоставляется отчету HP Out Master 33. Там такая же амплитуда на выходе.

exmash
Изображения, медиа и смайлы доступны в исходном чате.
2019-11-04 11:03:16

Комментарий к обзору о EVGA Nu Audio

Спасибо за обзор! Очень интересная карта, жаль купить негде в РФ.

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