Amps for Proac D48R

@keithandy ,You do not specify a budget for the amp or the speakers.I have the ProAc D48R and drive them using a Parasound A21 amplifier. You might want to looks into Parasounds's newer amplfiers or something from Pass.I use Clear Day double gunshot speaker cables bu thinking of upgrading to Inakustik Ls-1204 speaker cables. BTW, how long have you been using the D48Rs?

@keithandy ,What are your room dimensions? How far are the D48Rs from the front and side walls? I recently found that in my 19X15X8 room, if the ProAcs are 6 foot from back wall, and 42" from side walls, their bass was slightly lean than. So last week I moved them back about 10" (to back wall) and 3.5" to the side wall. Boom...the tight bass and weight magically appeared.
Can you try to experiment with the placement? Yes, it can take up to an hour to experiment, but it is worth the effort.