Before I did my final set up of the Uni III, I analyzed pictures of UNI III on fairs, and in privat listening rooms.
What I found out is, that on most fair pictures the manufacturer did an additional carpet under the UNI III,
so I tried the same.
My room has a wooden floor and the small peaces of carpet were easy to identify, Music became more precise in the lower mids, but on the other hand, some energy was lacking.
Looking to private installations or some dealer installations, it became obvious , that some user do prefer higher feets to enlarge the distance to the floor.
So I startet to put some stuff under the spikes of the Uni III, in parallel I was using cushions and carpets under UNI III to hear the difference. Increasing the distance to the ground means reducing the effect of a carpet or a cushion up to the point, that the difference becomes a minor difference.
So currently I do not use anything under the UNI III, but have some thicker HRS Nimbus plates under the spikes .
Regarding bass, my UNI III are around 2m from the back and side walls and do have a frequency response/graph, which shows a declining SPL starting from 58 hz in my 60sqm room.
In other rooms or in rooms with a more closer to the wall placement, this in room response will be different.
So I decided to add a Velodyne 1812 subwoofer, which works (surprisingly) well.
Tonight 2 High End experienced friends visited me for an Music/whiskey evening
and we enjoyed my new Techdas AF3 premium.
After a while, they asked, If I can switch the subwoofer on, as they would like to hear the difference....
As I stated, that we are listening all the time with a switched on subwoofer, they were impressed about the level of integration, which is possible with the Velo 1812.
I believe, that a similar integration will be possible with the Gotham subwoofer as well.
The Gotham sub is currently supporting the big Living Voice Horn System, which is installed at a dealer close by.