Hi, I own an acoustic piano back home and thinking of getting a digital piano in the host country I am living in currently. Besides all the other factors to consider, somehow my mind gets stucked on the type of stand that is good. I've only tested Digital Pianos with a "solid"/"block" stand. I've never played on a DP on X- or Z-form stands. (I wish I can attach photos here).

I contacted a seller and he said X-form stands are better than Z-forms and even "block" stands. "Block" stands are for people who wants it "permanently" sitting at home while X & Z form stands are portable.

Have anyone tried the different kind of stands? What's your opinion especially if you are playing ff (fortissimo)? Hope to hear from you.

I don't like any stands besides my wooden 'block' stand. Everything else either has a tendency to wobble when you strike the key to hard, or is very easy to tip over.

The downside of X stand is that you can't fit your legs under the piano.

I didn't find an X stand stable at all, and I bang my knees on it. This has worked well for me:
Stand

+1 for MarkL. The platform stand is what I use at home too. They'll all move a little, but the platforms will do far less than any X stand. Downside is slightly less portability (heavier and bulkier, but still portable).

Thanks for confirming my fears

X stands aren't really a good option - nowhere for your knees, awkward for pedal placement and also they can be bouncy. They are useful if you want to do some 1980's style standing synth playing.

Z stands are much better in that they are more stable and you don't have any problems with knees / pedals. Ones like the quik-lok z726 can be added to, so you can have shelves, speaker stands, music holders and other keyboards added to it. Often the Z stands are fixed height and you want to make sure it's wide enough for the piano to be stable on it - don't be a cheapskate and buy a Z stand that's designed for a mixer!

Table type stands like the quik-lok ws-500 are also pretty good - they're stable, often height adjustable, and again some manufacturers allow you to add extra bits to turn it into a workstation. On their own, the table bits are generally good for transporting about as they fold flat.

I've got both of the latter types and because they are made by the same manufacturer, most of the accessories are interchangeable.

I have a good X stand as well as a Z stand. There is no comparison. A Z stand is much better. Sturdier, can hold more weight, much more stable, and room for your legs, feet and pedals, etc. below it.

I have the On-Stage 2 Tier Z stand. (It also has an optional carry bag if you need to carry it around). On-Stage also makes a single keyboard version for about half the cost.

You can see a pic of my setup here.