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Klaus Eulenbach

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Apple AirPods Max

  • Audio Blog
Klaus December 21, 2020 No Comments

Here are my impressions of the Apple AirPods Max. There’s quite the hype going on around these. Let me jump in and share my impressions…Read More

DUNU Blanche: Is It the Cable?

  • Audio Blog
  • DUNU
Klaus July 28, 2020 2 Comments
DUNU Blanche strings

Oh my god, a cable review. Seriously? „Klaus, what happened to you?“ Let me explain. And, welcome to my DUNU Blanche sort-of-review. Preface I am…Read More

What Is It Like to Be an Audiophile?

  • Audio Blog
  • General
Klaus July 14, 2020 4 Comments
Audiophile

I consider myself to be an audiophile. But what does that even mean? Does that automatically make me an elitist and intolerant consumer who laughs…Read More

Frequency Response: 64 Audio A18s

  • Audio Blog
Klaus June 28, 2020 No Comments
64 Audio A18s

64 Audio has released a new addition to the studio & stage monitoring flagship A18 Tzar. The new A18s is advertised as being more suited…Read More

Lotoo PAW S1 Filter Presets

  • Audio Blog
  • Lotoo
Klaus June 27, 2020 1 Comment
PAW S1 Equalizer Filters

The Lotoo PAW S1 USB hifi-dongle is a new audiophile portable DAC. It has a very efficient circuitry that creates a clean, powerful and energy-saving…Read More

Lotoo PAW S1 Firmware Update 1.0.0.7

  • Audio Blog
  • Lotoo
Klaus June 26, 2020 No Comments
Lotoo PAW S1

I received this firmware update a bit early. I am using it since Tuesday, June 23rd. So far it seems to run stable and works…Read More

Flavor of the Month: DUNU Luna

  • Audio Blog
  • DUNU
Klaus June 25, 2020 No Comments
DUNU Luna title

DUNU is a well-respected audiophile-first company based out of Shenzhen. After stepping outside their OEM roots, DUNU have shown strong presence in the Head-Fi community.…Read More

Flavor of the Month: final A8000

  • Audio Blog
  • final
Klaus May 28, 2020 No Comments
final A8000 title

The final A8000 are high-end reference earphones that use a single true beryllium driver in a complex acoustic chamber. As the Japanese company’s flagship, they…Read More

Quick Impressions: SoundMAGIC HP1000

  • Audio Blog
  • SoundMAGIC
Klaus May 12, 2020 No Comments
SoundMAGIC HP1000 title

I share my quick impressions on the SoundMAGIC HP1000. The HP1000 are the company’s latest flagship reference headphones and are competitively priced at 269 USD…Read More

Caricatures of Headphone Users

  • Audio Blog
  • General
Klaus April 22, 2020 No Comments
Who am I?

This is a tongue in cheek characterization of the different users that appear in headphone-related discussion boards. Please don’t be offended. Image taken from the…Read More

64 Audio tia Fourté & Michael Jackson

  • 64 Audio
  • Audio Blog
Klaus April 21, 2020 2 Comments
Michael Jackson Hugo 2 tia Fourté

This article is a review of the 64 Audio tia Fourté with a focus on the music of Michael Jackson. A lot has been said…Read More

Constructing an Audiophile IEM Reference Target

  • Audio Blog
  • General
  • Measurements
Klaus April 19, 2020 No Comments

Discussing RAW frequency responses is hot right now. More and more audiophiles are starting to create their own measurement setups. So did I. But what…Read More

qdc Neptune versus NF Audio NA1

  • Audio Blog
  • NF Audio
  • qdc
Klaus March 22, 2020 No Comments
NF Audio NA1 vs qdc Neptune

I had planned to write a normal review on the NF Audio NA1, but I also remembered that I never really mentioned the qdc Neptune…Read More

Impressions: Hifiman Ananda BT

  • Audio Blog
  • HiFiMAN
Klaus March 14, 2020 No Comments
Ananda BT title

I have taken part in the Hifiman Ananda BT loaner tour on Head-Fi. Thank you very much to Hifiman for giving me the opportunity to…Read More

Understanding RAW Frequency Graphs

  • Audio Blog
  • General
  • Measurements
Klaus February 29, 2020 3 Comments
RAW in-ear target with piano keys and frequency

First off, I should apologize because this post is long overdue. I have been sharing raw measured frequency graphs without ever explaining them. So I…Read More

InEar ProPhile 8 vs 64 Audio A18t

  • 64 Audio
  • Audio Blog
  • InEar
Klaus February 28, 2020 No Comments
64 Audio A18t vs InEar ProPhile 8

It is no secret that the reference-tuned InEar ProPhile 8 are one of my favorite IEMs. In my opinion, they are possibly the best set…Read More

Frequency Response: InEar ProPhile 8

  • 64 Audio
  • Audio Blog
  • InEar
Klaus February 25, 2020 No Comments

The InEar ProPhile 8 is considered to be a reference of any IEM in regards to neutral frequency response. I personally share that opinion. (Read…Read More

Unboxing: NF Audio NA1

  • Audio Blog
  • NF Audio
Klaus December 2, 2019 No Comments
NF Audio NA1

Welcome to the unboxing of the brand new NF Audio NA1 single dynamic IEM. These monitors sell for ~169 USD excl. tax, and as of…Read More

News: Updated RME ADI-2 DAC (November 2019)

  • Audio Blog
  • RME
Klaus November 24, 2019 2 Comments
RME ADI-2 DAC 2019

The RME ADI-2 DAC has received a silent refresh. The name remains the same. Internally, the chip by Asahi Kasei Microdevices has been updated from…Read More

Flavor of the Month: AZLA Horizon

  • Audio Blog
  • Azla
Klaus November 21, 2019 No Comments
AZLA Horizon close-up

May I present you my flavor of the month for October/ November? The rare to find AZLA Horizon secured the spot this time around and…Read More

Measuring Custom IEMs

  • 64 Audio
  • Audio Blog
  • Jomo Audio
  • Measurements
  • NF Audio
  • qdc
Klaus November 17, 2019 No Comments
Measuring CIEM

As you might have noticed, I too like to measure my IEMs and study their frequency response. Though it doesn’t tell the whole story, there…Read More

Introducing My New 64 Audio A18t

  • 64 Audio
  • Audio Blog
Klaus November 14, 2019 No Comments
Title Image 64 Audio A18

As (kind of) announced, here they are: my new 64 Audio A18 Tzar Custom In-Ears. Top of the line. Summit-Fi. Ultra High-End. Etc. 18 freaking…Read More

Souvenirs from Japan

  • Audio Blog
  • General
Klaus October 27, 2019 No Comments

I am back from my holiday and I have at least a little audio content for my blog. I visited relatives in Tianjin, China, and…Read More

HD Music: What Does It Mean?

  • Audio Blog
  • General
Klaus September 22, 2019 No Comments
HD audio

This post is meant as an introduction to HD audio and will explain the fundamentals of hearing and audio data. We live in a fast-paced…Read More

Unboxing: Lypertek TEVI

  • Audio Blog
  • Lypertek
Klaus September 2, 2019 No Comments
Lypertek TEVI Unboxing

Here are some unboxing impressions of the new True Wireless Stereo headset by Lypertek. The TEVI are an impressive and feature-rich new pair of Bluetooth…Read More

Chi-Fi Listening Session

  • Audio Blog
  • Measurements
Klaus September 1, 2019 No Comments
Chi-Fi Listening Session

My friend of CHi-FIEAR came to visit yesterday and we had some fun trying out different IEMs in a listening session. BTW, you can find…Read More

Frequency Response: Campfire Solaris

  • Audio Blog
  • Campfire Audio
  • Measurements
Klaus August 26, 2019 No Comments
Campfire Solaris

For measurements, I am using the same in-ear coupler as my friend on Headflux.de, the IEC 60318-4. I am posting raw measurements, which means I…Read More

Flavor of the Month: Oriveti OH500

  • Audio Blog
  • Measurements
  • Oriveti
Klaus August 24, 2019 3 Comments
Oriveti OH500

The Oriveti OH500 is my new flavor of the month. It is fresh and shakes up the absurd pricing for high-end gear. The OH500 are…Read More

Frequency Response: 64 Audio U12t, U18t and Fourté Noir

  • 64 Audio
  • Audio Blog
  • Measurements
Klaus August 20, 2019 No Comments
64 Audio

For measurements, I am using the same in-ear coupler as my friend on Headflux.de, the IEC 60318-4. I am posting raw measurements, which means I…Read More

Underrated: The SoundMAGIC Vento P55 V3

  • Audio Blog
  • SoundMAGIC
Klaus August 19, 2019 No Comments
SoundMAGIC P55

I do have discounted access to SoundMAGIC products, but regardless of what I paid, I think the Vento P55 V3 is an amazingly competitive headphone…Read More

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