Uploaded September 2025 | Updated September 2026, 2 weeks ago

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Thanks to Apos Audio for facilitating and SJY for sending the HCC for review!

Buy from Apos Audio (affiliate link): https://amp.apos.audio/products/sjy-horizon-closed-carbon-planar-magnetic-headphones?sca_ref=1448954.julYPU81dF

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My reviews of other mentioned gear...

Audeze LCD-XC 2021: youtu.be/ax_VSX4sSpA
Aune S17 Pro: youtu.be/c1tmYoNDFDU
Aune S17 Pro EVO: youtu.be/kKBhzMKcs38
Berkeley Alpha S2: youtu.be/JY3c4HEyH0s
Chord 2Go+2Yu: youtu.be/S3O7JNOJIqI
Dan Clark E3: youtu.be/wzUqM7OJlTk
Fiio M21: youtu.be/22bHTUv3G8k
Fiio SR11: youtu.be/YuagbK8p0FA
Focal Radiance: youtu.be/rXnmlXCf_bA
LAiV uDAC: youtu.be/A5sqsO76L8w
Lampizator Baltic 3: youtu.be/QShvh2rqETc
LTA Z10e: youtu.be/Bft6HUsYDhE
Schiit Asgard X: youtu.be/n8H8SN3Rdf4
Schiit Valhalla 3: youtu.be/kYBMk4qn4Rg
Singxer SU-6: youtu.be/6dr4T0Sd_NU
Sonore ultraRendu: youtu.be/qEOOE9rP6Rs
Violectric HPA V281: youtu.be/ETFZtNxunKg

Timestamps...

00:00 Intro, Pricing, Disclaimer
02:04 Shameless Self Promotion
02:32 About SJY & Takeaways
05:25 About the Horizon Closed Carbon
07:44 Build, Comfort, Cabling
12:10 Drivability & Test Gear
25:08 Sound
32:28 Comparison to Focal Radiance
35:21 Comparison to Dan Clark E3
37:44 Wrap Up & Final Thoughts