Uploaded May 2026 | Updated September 2026, 2 weeks ago

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I unbox the soon-to-be-released Koss A/550 open-back headphone!

Sale links when available!

Thanks to Koss for sending the A/550 for review!

First listening impressions on YT: youtu.be/rmJaBgBGCF0

First listening impressions on Patreon: patreon.com/posts/koss-550-first-158003864?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

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