Introducing the Softears RSV MKII: A First Look
While the brand-new Softears RSV MKII has yet to see a global release, I was fortunate enough to secure a first-run unit from the Project Gotham store in China. A Personal History with Softears My journey with Softears has deep roots, beginning in 2018 when I had the opportunity to...
IEM Targets: One Last Word
Let’s discuss IEM frequency response targets — probably for the last time on this blog. I’ve previously touched on this topic before. Many fellow headphone fans are putting a lot of effort into making sound objective and finding the ideal frequency response target. But I think there’s one oversight that...
Sennheiser HD 650 in 2025
Lately, I noticed the availability and pricing of the Sennheiser HD 650 became unstable. Prices are on the rise and I heard a rumour about what could be the cause. So to add this classic headphone to my collection (again), I ordered one very recently and want to put this...
Unboxing: IO Audio Sogno
I had teased and mentioned the IO AUDIO (I\O Audio) Sogno in my SIAS impressions. On that day, I think it had the best-tuned upper mids and transition into treble that I have heard in a very long time. So I went ahead and purchased a pair from Shenzhen Audio to share my...
First Impressions: Grand Oriveti Supremacy
Intro These are my first impressions of the Grand Oriveti Supremacy high-end IEM preceding a full review. The Supremacy has a 4-way crossover design with dynamic, BA and EST drivers. Spoiler: It sounds fantastic, is stunningly beautiful and is one of the most comfortable IEMs I have tried so far!...
Hi, I’m Klaus
Welcome to my little blog. I’m a German audio enthusiast, writer, and semi-professional photographer who’s been immersed in the world of high-fidelity sound – professionally, but mostly as enthusiast. A Journey Through Sound My fascination with portable audio began in 2009 when I joined the Head-Fi community. What started as...
HEDDphone TWO GT: Official Product Photos
This is the first time I have shot official product photos (cutouts) for a release. Until recently, I was working full-time for HEDD Audio for over 4 years and also accompanied the HEDDphone TWO GT project. Find out more about the HEDDphone TWO GT on the official product page. The...
SIAS: Celebrating the Success of Chi-Fi
An Introduction to SIAS Welcome to Shenzhen, the most famous city for the “Made in China” tag on electronic devices and the source for all of your IEM dreams. For the 18th time, Shenzhen invited audio fans and especially IEM nerds to the SIAS (Shenzhen International Audio Show) event. Just recently, I visited CIHE (Chinese International Headphone...
CIHE Beijing 2024 Show Impressions
In a spontaneous decision, I attended the 2024 China International Headphone Expo (CIHE) in Beijing this past weekend. I had not prepared for the show and was just informed about the event a few days earlier. So I went on a 1-day-trip to Beijing and was one of the hundred...
First Impressions: Softears Enigma
I received a review unit of the Enigma from Softears and want to share some early impressions. I am currently traveling so I neither have access to my main camera nor my measurement setup. So please excuse my lazy snapshots using my wife‘s (highly portable) Fuji X100V and the lack...
HEDDphone TWO GT: Brochure
When the HEDDphone TWO was finally finished, I have to admit that I was a little bit disappointed. It did not have the sonic characteristics of the HEDDphone ONE. That is not to say that the HP2 was not a technical upgrade – because it is. But it is a...
The HEDD Logo Recreated
Have you ever wondered what HEDD’s logo is supposed to represent? It looks like a grenade and not quite resemble an AMT. Well, that’s because it’s actually the company’s unique shape of the AMT’s pole plate and not the driver itself. To be honest, not people recognize it, but if...