capetownwatches
100+ Head-Fier
I would concur with @ScubadudeSA. The SRM-353X is a significant step up from the SRM-252S in terms of the benefits that additional voltage brings to the party - more composure when the music gets complex, wider and deeper soundstage and more solidity to the presentation due to better low end and smoother mids. Highs remain just right to my ears with the L500. Wonderful though the little entry level driver is, big brother raises the bar very perceptibly.