Thank you! @Jermo K and his team mare doing a great job. We're excited for you to hear it. Nothing against the HD 558 but the HD 620S will be a massive upgrade, closed-back or not. Thanks for the trip down memory lane. That was a gateway headphone for so many of us! They already are...you can...

No IE 300?!?!?! WHAT GIVES?! hahaha kidding kidding 😁 You rock 🤘 Any favorites from your whole collection?

It's actually wider than many, many open headphones I've heard.

It's not possible for one headphone to accommodate all personal preferences, but we are pretty confident that we are filling a decent sized hole in the market with it's tuning and presentation. Hope you get to hear them with your own gear and ears 👍

The padding has an adhesive but will still be replaceable. Based on the material spec it should last a long time. You will be able to buy a spare parts for it. The HD 620S is indeed more brilliant in the treble, that I think many will describe as "clean" as it lacks sibilance but still has bite...

Thank you so much! Based on what you describe I think you are in for a treat.

I think you know the answer 😁 haha But seriously, thanks for being an awesome customer. That's a great collection!!! I can confidently say that the HD 620S has a unique tuning among all of the cans you just listed so there is almost zero redundancy from an overall signature perspective. Of...

Here's a few stills pulled from the video tour I'm working on...

The great @Ichos surfaces in the wild, capturing his prey with deft efficiency. Glad you got to hear them!

I might have to pull the trigger on one of these. I need another thumbDAC like a submarine needs a balcony but this is Head-Fi so ...

Indeed, swapping the stock pads for velour pads add zero acoustic benefit and drastically alter both bass response, focus, and soundstage. We'll pass the boom mic feedback along. We already have an in-line mic option for the 500 series that works with the HD 620S. Headband padding is...

Hope you get to try it soon like this head-fier 👇👇 Now I'm going to try my HD 598 pads on the HD 620S because why not? Edit: don't bother

If this were any other ordinary Thursday, I'd mount it to my KU 100 and give you a video demo, but I'm in the middle of a move so it's in storage. I believe we have isolation specifications for the wearer, but not the other way around. That said, I can do a down n' dirty practical demonstration...

measurable quantity and perception are definitely on separate-but-perpendicular rails.

When you get to the bass curves, it starts to get subjective as we're talking flavor and quantity. I do believe most listeners will find the HD 660S2 signature to be warmer and more relaxed overall, and that bass breathes really well. I do believe most HD 620S listeners will find its bass to be...