Goldenear Triton One bass setting

On my Triton Ones, my left channel is set at 11 o' clock and the right one at 12 o' clock.  The reason is the left channel is very close to the back wall where the right channel is much further away.  Best bet is to play a bass track on repeat and start at the 11 position and adjust up or down until the bass is to your satisfaction.  There is no wrong way.

https://www.audiocheck.net/audiotests_subwooferkicktest.php

Like the test says, the tracks with deeper bass should sound the same loudness as the ones with less bass, only difference should be extension.

Is there a CD that has good frequency tracks and use a sound meter on my iPhone to measure to get a flat response?