If you have not tried RAAL SR1a 'earphones' then it is worh trying out. I hate headphones and these are like 2 channel sound. On sale in November.
True Ribbon Headphones & Amplifiers | RAAL-requisite (raalrequisite.com)
BTW - putting speakers on a desk is a difficult thing to do. Since it is not an ideal locaction I would consider the AudioEngine line of desktop speakers with the angled stands. No need to spend to much money on something that will really never sound great.
Audioengine (audioengineusa.com)