Tyll Hertsens Blog

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Jana Dagdagan  |  Jul 21, 2017  |  22 comments
Last month, I visited Ultimate Ears Pro in Irvine, California for a tour of their office/facility, and to finally try custom in-ears for the first time.

The customs that I ended up receiving (full disclosure: as a complimentary press sample) were the UE Pro Reference Remastered studio reference monitors ($999). They were developed in collaboration with Capitol Studios and house three balanced armature drivers.

Tyll Hertsens  |  Jul 12, 2017  |  37 comments
A nice little handful of measurements...find some air conditioning and ice tea and have a look.
Tyll Hertsens  |  Jul 07, 2017  |  15 comments
There's a lot to like about AudioQuest's NightHawk and NightOwl: great comfort, very low distortion, exceptionally flat impedance response. Unfortunately, I found the NightHawk far too dark for me. AudioQuest goes into great detail to justify the tuning of this headphone on this page. I find the information written there about headphone performance and response characteristics simply outstanding. I sure wish more manufacturers went to that much effort to describe what they're doing.
Tyll Hertsens  |  Jun 26, 2017  |  72 comments
Quite the tumult over my Sony MDR-Z1R review. The forums churned. I think I need to re-state where I'm at.
Tyll Hertsens  |  Jun 16, 2017  |  70 comments
Out on my morning web surf and I stumble onto a bombshell on the front page of Head-Fi:

"Sony MDR-Z1R Measurements: Head-Fi HQ’s compared to InnerFidelity’s"

That article links to a much more comprehensive post in the Z1R thread by Jude Mansilla, Head-Fi's Founder. It seems Jude's measurements are somewhat different than mine, particularly in terms of the peak in response around 10kHz. Here are the two plots in question.....

Tyll Hertsens  |  Jun 13, 2017  |  44 comments
"I haven't heard the MDR-Z1R. BUT! Tyll's comment was that he would more preferably listen the ATH-M50Xs is hard to swallow."
Tyll Hertsens  |  May 30, 2017  |  17 comments
I feel compelled to do this about once a year...if it just save one person it's worth it. As I read my headphone news feeds it seem like I read of someone killed by walking on train tracks wearing headphones about once a week. Often it's a youngster. It seems so avoidable: Just don't walk on train tracks...period. But in a number of cases—one below—someone dashes across the tracks to catch a bus or talk to a friend and the headphones prevent hearing the oncoming train.
Tyll Hertsens  |  May 19, 2017  |  17 comments
For a variety of perfectly understandable reasons, Audeze was only able to provide one LCD-4 for measurement and evaluation. I now have 3 LCD-4s measured and have put them in this AllLCD4Measurements.pdf.
Tyll Hertsens  |  May 15, 2017  |  32 comments
Big thanks to a headphone forum member who reached out with an offer to share his Utopia and LCD-4 for me to measure. One more for the Focal for the Utopia measurements .pdf booklet. It's A1BEHF000384 on page 10 and 11. Generally, it matches the rest of the Utopias measured with a couple small things to note. I'll reveal the LCD-4 measurements when I have enough samples for a good comparison.
Tyll Hertsens  |  May 10, 2017  |  31 comments
Okie dokie. After having measured seven Focal Utopias, some of them numerous times, two with serial numbers lower than the review pair, it now feels like I have enough information to draw some conclusions and move forward.
Tyll Hertsens  |  May 05, 2017  |  21 comments
Well, there's certainly been a whirlwind of calls and emails around the old InnerFidelity lab this week. I thought it would be a good idea to put a fine point on where we're at, and talk a bit about where we can go from here.
Tyll Hertsens  |  Apr 12, 2017  |  18 comments
Not a lot of new measurements in this update as most were also reviewed, but a couple of new ones of interest.
Tyll Hertsens  |  Mar 28, 2017  |  20 comments
Last week, when I posted about AKG K1000 measurements, many readers were perplexed about the apparent low frequency isolation with what ought to be about the most open headphone you could possibly have. How in the world could it be providing any isolation at all, much less in the low frequencies that are particularly had to shut out?

Frankly, I thought I must have just done something stupid and there was something wrong with the measurements (though I did double-check at the time). So, I remeasured again this weekend...and basically got the same result!

Tyll Hertsens  |  Mar 24, 2017  |  22 comments
Sometimes my job is quite humbling. Like when headphone enthusiast yaluen decided to ship me a dozen headphones—many very rare and collectable—from his collection for measurement.

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