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 Pro-Ject Head Box SE II Out 1

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 Pro-Ject Head Box SE II (as headphone amplifier)

Frequency response, Impedance and Frequency response with standard headphones

Average value of impedance band in 40 Hz - 15 kHz

10.5

ohm

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 Pro-Ject Head Box SE II Out 1 were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Pro-Ject Head Box SE II Out 1 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.

Pro-Ject Head Box SE II is available in reports and services. You are in a professional report.

Information for entry level users

reports for a newbie (Headphone amplifier)

Information for professionals

reports for a pro (Headphone amplifier)

Comparison of on-line graphs

Quick jump to the schedule in this report: Out 1

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Channel:	Left	Right
Variation in frequency response in band from 40 Hz - 15 kHz	-0.2, +0.2	-0.2, +0.2	dB

Channel:	Left	Right
TEST 16 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
TEST 32 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
TEST 64 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
TEST 126 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
TEST 256 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
TEST 512 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB

Channel:	Left	Right
TEST 10000 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
Grado GH4 Limited Edition + Pro-Ject Head Box SE II Out 1	1.6	1.5	dB

Channel:	Left	Right
TEST 10000 ? + Pro-Ject Head Box SE II Out 1	0.0	0.0	dB
Campfire Audio Andromeda + Pro-Ject Head Box SE II Out 1	8.7	8.7	dB
Fearless Audio S8F Freedom + Pro-Ject Head Box SE II Out 1	7.0	6.5	dB

Pro-Ject Head Box SE II

About this report

Test report - general data Pro-Ject Head Box SE II (as headphone amplifier)

Frequency response, Impedance and Frequency response with standard headphones

Frequency response Pro-Ject Head Box SE II Out 1 (as headphone amplifier)

Impedance Pro-Ject Head Box SE II Out 1 (as headphone amplifier)

Frequency response Pro-Ject Head Box SE II Out 1 with resistive load

Frequency response Pro-Ject Head Box SE II Out 1 loaded dynamic headphone type

Frequency response Pro-Ject Head Box SE II Out 1 loaded type balance armature headphone type

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