Speaker stand height




I have a pair of PSB Stratus Minis on their factory 25" stands, but these seem too tall for my room/listening position. My listening chair is somewhat low and laid back and this i do not want to change. So I was thinking of buying lower stands so that the speakers are closer to my ear but am worried about messing up the overal tonal balance of my PSB's. Should i Be worried about the sound changing too much with lower stands, or will it simply give me more bass and a more direct sound?

btw iv'e experimented with putting these speakers on 10" concrete blocks, with a title to compensate for the height, and this seemed to make the sound much fuller. This was many years ago though and my memory could be fooling me.
dave123456
Does anyone know if its ok to fill stands with BB's, or will they rattle. I checked out leadshot at my local gun store and they wanted $50.00 for a 25lb bag, which is pretty expensive. Copper BB's from walmart would cost much less and the weight is about the same.
Clay kitty litter.. the cheap Walmart stuff, non deodorant, non clumping kind..
A twenty five pound bag of lead shot weigh pretty close to a twenty five pound bag of copper coated steel BBs but the BBs are a lot more volumnous. Then add floor leveling powder from home center. Now thing will weigh 55lb. ugg

Is leveling powder heavier than kitty litter? I filled up my stands about 1/3 with 18,000 steel bb's in each stand, and then used kitty litter for the rest. This still doesnt seem heavy enough for me and was thinking of switching out the litter for something else.
Kitty litter is a kind of open absorbant clay for obvious reasons. The floor leveling that I'm thinking of is pretty dense. Kinda reminds me of finely divided flint rock.