Pods, Bars, Platforms and Podiums are all basically the same technology. They all use essentially the same air-damped spring suspension isolation. The main difference is in how they connect. Podiums use a big massive and constrained layer damped plinth. Platforms the plinth is a different shape not as massive. Bars it is a bar and Pods go directly under whatever. Pods are really great bang for the buck, because you are not paying for the constrained layer damped plinth. Also the coating on this stuff is a real high tech durable marvel of a coating!
Might seem you can do it all in one fell swoop with the rack. For sure that will be an improvement. But there is also a lot of vibration generated within the component itself. I learned this one a long time ago, and it has carried through with everything since. It is even hard to say for sure which is more susceptible, the turntable or CDP or DAC! I know that sounds counterintuitive but I tried Pods first under my turntable and was hard for John to talk me into trying under the amp, but then surprised when it was at least as good under the amp as turntable!
So if it is a budget thing I would do Pods directly under whatever is the most cherished source, and if they are all used pretty evenly then maybe do the rack instead. But we are throwing darts here. There is no wrong answer and it is a lot of work comparing trying to split hairs on which is better at this point.
Nobody believes me when I say this, they look at what I have done and it seems nuts, but I really do say don't sweat the small stuff. When people come over and hear how big a difference some of these things make then they understand. If the difference isn't pretty big I don't bother. Too many things really do make a big difference to waste time fretting over what might be maybe slightly even better.
The guy who I think you mean with bass loss, he had very inefficient Harbeth speakers with a small amp and very little bass to begin with. The thing about bass, a lot of what we experience as bass is vibrations coming through the floor up through the legs and butt. That is where we feel it, legs and butt. Put speakers on Podiums the bass actually has at least as much slam, dynamics and extension. But instead of feeling it in the legs it is all through the air and you feel it in your chest and gut. Whole different thing, much more like real music. But in his case he was loving that legs and butt bass and with nowhere near enough power for real bass he was left feeling a lack of bass.
Another thing that happens, since the floor is not being excited the same way a lot of what we call room resonance is really the floor and walls vibrating and with Podiums there is so much less of this it is almost like adding tube traps. Mike Lavigne has an absolutely awesome room and coming home after being there the first time it was like mine sucks. Then I got Pods and Podiums and some other stuff, no room treatment at all but after visiting Mike this second time all of a sudden my room was a lot better. Still nowhere near the same league but still seriously better. So you can probably expect a lot more clean bass in the room than you would ever have thought possible. Assuming you are not marginal but starting with adequate bass to begin with you should be fine.
