This is the personal blog by Klaus Eulenbach. It mostly features portable audio products, reviews and editorial content. Hope you enjoy it!


SoundMAGIC HP1000 title
Blog, References, Reviews, SoundMAGIC

Quick Impressions: SoundMAGIC HP1000

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 excl. tax or the equivalent of 299 €. SoundMAGIC SoundMAGIC is the company of the audio engineer and sound designer...
Who am I?
Blog, General, References

Caricatures of Headphone Users

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 movie Who Am I?. All rights reserved. Average Consumer The average consumer makes up for at least 95% of headphone...
Ananda BT title
Blog, HiFiMAN, References, Reviews

Impressions: Hifiman Ananda BT

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 test this high quality headphone and to share my impressions. The Ananda Bluetooth (BT) sells for around 1200 € here...
RAW in-ear target with piano keys and frequency
Blog, General, Measurements, References

Understanding RAW Frequency Graphs

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 finally want to catch up and help with the basics and understanding how to read raw frequency graphs. Very important...
64 Audio, Blog, InEar, References

Frequency Response: InEar ProPhile 8

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 my full-length review here.) Let’s take a closer look. Visit the official InEar website. ProPhile 8 Linear Bass SPL We...
NF Audio NA1
Blog, NF Audio, References

Unboxing: 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 right now, are rather difficult to obtain outside of Asia. I have a feeling that will change soon, though, because...
RME ADI-2 DAC 2019
Blog, References, RME

News: Updated RME ADI-2 DAC (November 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 AK4490 to AK4493, bringing the DAC up to the latest and best in November 2019. (Well, technically we’re at AK4499...
AZLA Horizon close-up
Azla, Blog, References, Reviews

Flavor of the Month: AZLA Horizon

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 is making sure that the fabulous Oriveti OH500 get a little less playtime. I picked them up as a souvenir...