ARCAM CD with 2 outputs,
*one connected to GSAUDIO SOLO headamp > HD 650,
*second output connected to a REL ACTIVE SUBWOOFER,
and listening to them at the same time (after mixing the separated volumes).
Because you don't use mid and highs via speakers (versus "normal" speaker) but only the bass, you don't have disturbing delays with the mids and highs of the (open) headphone.
But what you get is the PHYSICAL IMPACT (slam) of the bass. Actually you don't hear it, but you can feel it.
That's what I always missed when listening with headphones (only).
Anyone tried that setup ?