Compact, Powerful, Brilliant - Ferrum OOR Review

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In this video, GoldenSound takes a look at the Ferrum OOR, a compact, high performance headphone amplifier with a unique optional power supply upgrade.

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00:00 - Intro
00:39 - Build quality
1:04 - IO and Controls
2:19 - Power
3:25 - Internals
4:50 - Sound Quality
7:13 - HYPSOS
9:45 - Conclusion