They likely used 96 kHz, that won't make much different unless select the slow roll off filters (default?), in that case you may get closer to 100 dB but I doubt it would improve to 106 dB. They had volume set to 82, input is the same as yours, 0 dBFS for sure.
Again, please do the FFT using 3.5 kHz or somewhere around there, if you don't mind and obviously if possible at all...
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
No one else has done it, but Audioholics can be the first.