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 Flang V5 Hi Gain

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 Flang V5 (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	3.2/3.2	dBV
	1.5/1.5	V_RMS
Current: Linear Mode / Maximum or before clipping level	7.8/33.1	dB(mA)
	2.5/45.1	mA

Brief information

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

Frequency response Flang V5 Hi Gain (as headphone amplifier)

Graphics setting view

Channel

Range

Channel:	Left	Right
Variation in frequency response in band from 40 Hz - 15 kHz	-0.1, +0.1	-0.1, +0.1	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 Flang V5 Hi Gain (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	0.4	ohm

Comparison of basic characteristics AMPs

Brief information

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Crosstalk Flang V5 Hi Gain (as headphone amplifier)

Graphics setting view

Channel

Range

Load

Channel:	Left	Right
Crosstalk @ 1 kHz @ 15.8 ohm	-60.3	-60.5	dB
Crosstalk @ 1 kHz @ 24.5 ohm	-64.7	-65.1	dB
Crosstalk @ 1 kHz @ 30.5 ohm	-67.3	-67.8	dB
Crosstalk @ 1 kHz @ 62.4 ohm	-72.5	-72.8	dB
Crosstalk @ 1 kHz @ 100.0 ohm	-77.1	-76.5	dB
Crosstalk @ 1 kHz @ 198.9 ohm	-81.2	-79.4	dB
Crosstalk @ 1 kHz @ 300.0 ohm	-85.7	-80.9	dB
Crosstalk @ 1 kHz @ 763.0 ohm	-93.6	-81.3	dB
Crosstalk @ 1 kHz @ Not loaded	-103.4	-81.4	dB

Brief information

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

Crosstalk Phase Flang V5 Hi Gain (as headphone amplifier)

Graphics setting view

Channel

Load

Brief information

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Frequency response Flang V5 Hi Gain with resistive load

Graphics setting view

Channel

Range

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

Channel:	Left	Right
TEST 16 ? + Flang V5 Hi Gain	0.0	0.0	dB
TEST 32 ? + Flang V5 Hi Gain	0.0	0.0	dB
TEST 64 ? + Flang V5 Hi Gain	0.0	0.0	dB
TEST 126 ? + Flang V5 Hi Gain	0.0	0.0	dB
TEST 256 ? + Flang V5 Hi Gain	0.0	0.0	dB
TEST 512 ? + Flang V5 Hi Gain	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 Flang V5 Hi Gain 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 ? + Flang V5 Hi Gain	0.0	0.0	dB
Grado GH4 Limited Edition + Flang V5 Hi Gain	0.1	0.1	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 Flang V5 Hi Gain 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 ? + Flang V5 Hi Gain	0.0	0.0	dB
Campfire Audio Andromeda + Flang V5 Hi Gain	0.6	0.6	dB
Fearless Audio S8F Freedom + Flang V5 Hi Gain	0.5	0.5	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 Flang V5 Hi Gain

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 Flang V5 Hi Gain

Graphics setting view

Type of chart

RAW coordinates

Power characteristics of the	Voltage		Current
	dBV	V_RMS	dB(mA)	mA
Equivalent class A	3.2	1.5	7.8	2.5
Equivalent class AB	3.2	1.5	17.9	7.9
Equivalent class B	3.2	1.5	33.1	45.1
Maximum mode	3.2	1.5	33.1	45.1

Volume Control Type	Analog
Optimal range of volume control	36.0	dB

Comparison Flang V5 Hi Gain and another amplifiers by loudness (Volume Level)

Main characteristics of the Flang V5 Hi Gain

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 Flang V5 Hi Gain

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	-27.0	0.0	-18.0	0.0	-3.0	0.0	-3.0	0.0
24.5 ohm	-26.9	0.0	-14.9	0.0	-0.9	0.0	-0.9	0.0
30.5 ohm	-21.9	0.1	-11.9	0.1	0.1	0.1	0.1	0.1
62.4 ohm	-17.8	0.1	-5.8	0.1	3.2	0.1	3.2	0.1
100 ohm	-11.8	0.3	-1.8	0.3	3.2	0.3	3.2	0.3
198.9 ohm	-5.8	0.5	3.2	0.5	3.2	0.5	3.2	0.5
300 ohm	-1.8	0.8	3.2	0.8	3.2	0.8	3.2	0.8
763 ohm	3.2	1.5	3.2	1.5	3.2	1.5	3.2	1.5
Not loaded	3.2	1.5	3.2	1.5	3.2	1.5	3.2	1.5

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	9.1	2.8	18.1	8.0	33.1	45.1	33.1	45.1
24.5 ohm	5.3	1.8	17.3	7.4	31.3	36.9	31.3	36.9
30.5 ohm	8.4	2.6	18.5	8.4	30.5	33.3	30.5	33.3
62.4 ohm	6.3	2.1	18.3	8.2	27.3	23.1	27.3	23.1
100 ohm	8.2	2.6	18.2	8.1	23.2	14.5	23.2	14.5
198.9 ohm	8.2	2.6	17.2	7.3	17.2	7.3	17.2	7.3
300 ohm	8.7	2.7	13.7	4.8	13.7	4.8	13.7	4.8
763 ohm	5.6	1.9	5.6	1.9	5.6	1.9	5.6	1.9

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	-8.9	0.1	0.1	1.0	15.1	32.1	15.1	32.1
24.5 ohm	-10.8	0.1	1.2	1.3	15.2	33.3	15.2	33.3
30.5 ohm	-6.7	0.2	3.3	2.1	15.3	33.8	15.3	33.8
62.4 ohm	-5.8	0.3	6.2	4.2	15.2	33.4	15.2	33.4
100 ohm	-1.8	0.7	8.2	6.6	13.2	20.9	13.2	20.9
198.9 ohm	1.2	1.3	10.2	10.6	10.2	10.6	10.2	10.6
300 ohm	3.5	2.2	8.5	7.0	8.5	7.0	8.5	7.0
763 ohm	4.4	2.8	4.4	2.8	4.4	2.8	4.4	2.8

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 Flang V5 Hi Gain (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 Flang V5 Hi Gain (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 Flang V5 Hi Gain (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 Flang V5 Hi Gain (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 Flang V5 Hi Gain were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Flang V5 Hi Gain 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.

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.

Flang V5 is available in reports and services. You are in a professional report.

Information for entry level users

reports for a newbie (Headphone amplifier)

The automatic selection of the optimal AMP models

Information for all

Versus of characteristics

Information for professionals

reports for a pro (Headphone amplifier)

reports for a pro (DAC Line Out)

DAC Line Out

Comparison of on-line graphs

Quick jump to the schedule in this report: Hi Gain

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