I found a way to play without activating Space Age (it works with the fork version).
1) Close Factorio.
2) Copy the following folder: Program Files (x86)\Steam\steamapps\common\Factorio\data\space-age\sound\entity\electromagnetic-plant
3) Paste it into: Program Files (x86)\Steam\steamapps\common\Factorio\data\base\sound\entity
4) Go to the mod folder: augmentor-fork_1.0.4\prototypes\entity\augmentor-sounds
5) Open the files and press Ctrl + H (Find & Replace):
Find: space-age, replace with: base, Click Replace All
The mod should now work without Space Age enabled.
You may need to repeat 2 and 3 steps every time Factorio updates
