Blog, HEDD, Reviews

The Audio Genie’s One Wish

Disclaimer: Before you read this article, be sure to read my (updated) introductory post. Imagine you found a weird lamp and, for some reason, you gave it a good rub. POOF! Suddenly emerges the audio genie! A spectral figure in the form of a silver-haired...
Sennheiser HDB 630
Blog, Reviews, Sennheiser

Sennheiser HDB 630: Consumerphile

I use the online alias 16BitAudiophile because I consider myself an ambitious enthusiast who cares as little about voodoo audio as unreasonably priced ultra high-end gear. Give me a good quality CD and I can enjoy it on mid-tier headphones – even over Bluetooth. And...
Blog, Reviews, Softears

Softears RSV-MKII Review

This is a full written review of the new Softears RSV-MKII – the 2025 revision of the original “Reference Sound” RSV from 2021. The previous generation is one of my all-time favorite IEMs and I have used it nearly daily since my full review that...
Softears RSV-II First Impressions
Blog, Softears

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...
IEM Target in a studio
Blog, General, Measurements

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...
Blog, Reviews, Sennheiser

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...
Blog, IO Audio, References, Reviews

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...
Blog, Oriveti

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...
Mojo2 by Klaus
References

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...
HEDD, References

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...