I use headphones (Sennheiser HD650) all the time and am considering a headphone amp to supplement my Hi-fi (Arcam CD82 and A85). The Naim looks good but am not sure if my system will power it and if so whether the improvement will be noticeable.
hi i also use sennheiser 650 i have tried them with graham slee headphone amp ..my mate has and very good this is- but -i use musical fidelity x-can v3 that i personly prefer its valve amp and you can change valves to upgrade .at not have to spend to much to do this- i have changed the valves twice for russian spec ones and both were good upgrades . try before you buy