Yes, I am using a pair of IMF RSPM MkIV.
They are driven by 6xNAP-135, "Marchand Electronics" Electronic cross-over, NAC-32.5 and Hi-Cap.
Sound source is usually a Sony X777ES and Meridian 566 DAC.
This system exhibits a believable sound stage and bass extension that is synonomous with loud speakers with transmission line loading.
In summary a very musical system, you will note I have not claimed "a very accurate system". Firstly this is impossible and secondly accurate is a absolute term so you can't get "very accurate".
This system is in a large room (24'x15'12' height) and this is where the transmission line work best.
I have a pair of Isobarik PMS that sound not as convincing in this room.
Warning, this type of speaker is demanding of amplifier quality, a crappy amplifier will sound crappy, like all speakers sound best when active.
Judge these speakers on merit not on somebody's opinion, including mine.
Till next time.....
Barry Hart