I have NAD HP50 and AKGK545, use AKG with my comp and HP with my iBasso dx50. I listen to HP in bed when i like less agresive upper mids of HP. When working on my comp (I am programmer), or listen to music on comp, then i use K545. I have to say, that sound on my comp is darker than on dx50, so akg pair with my comp beter than HP50, but on iBasso (more neutral sonding) HP pair very well. That is IMO, someone else may have different opinion.