Ferrum is a relatively young Polish brand that I learned to appreciate through their Hypsos hybrid power supply that now powers the Mytek Brooklyn DAC in my setup 1b. Last year they introduced the Oor headphones amp and now the € 2,795 costing Wandla DAC with analog pre-amp. It is reviewed here using the wall wart power supply that came with the unit but also with the Hypsos power supply.

Contents of this video

00:00 - Intro
00:36 - Start of program
00:57 - How to use
02:38 - The outside
03:05 - The front
03:33 - The rear
04:57 - The inside
06:09 - In use
07:21 - Theater bypass
08:00 - Volume and levels
08:50 - -3 dB setting
09:30 - I²S settings
10:37 - Upsampling & filters
11:46 - Control menu
12:13 - How tested #1
13:11 - Sound quality #1
13:51 - How tested #2
16:10 - Sound quality #2
16:44 - The wrap

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