Mounting Speakers On A Furniture Dolly For Mobility

I'd think that the dollies should affect the sound, as they would move the drivers 3+ inches higher from the floor and therefore affect the blend of drivers at the listening position.  You might check the owner's manual to see what the manufacturer feels is the best height for listening to the speakers (some feel the tweeters should be at ear-height, for example).  I would second the furniture slides--I used them under my Duntechs for years.

@elliottbnewcombjr

It looks like you put in the time to get it right.

Furniture dollys are on sale right now for $9.99 at Harbor Freight. Heck, the good, solid hardwood ones are only $29.99 each. Buy a couple and try them. You'll never know without trying.

You've got 2 potential issues. Mechanical connection with the floor and additional height. Not sure how you resolve any potential issues with the mechanical connection. However, the added height may be mitigated by a bit of forward lean created by a wooden doorstop wedge inserted below the back center bottom of the speaker. The wedge would allow you to easily try different angles.

As also mentioned furniture sliders work wonders on carpeted floors. 4 of the large round sliders would allow you to move those speakers much more easily and would not add any height.

Good luck! Love the speakers. My current speakers are Infinity RS1.5 from 1980

Definitely not a good idea. Any good supports made for audio will sound better than those. 

You will probably get less bass higher up and more isolated from the floor which could be good or bad depending. Listen and see. No harm in trying and you will know how it sounds , nobody not actually there can know for sure. Just make sure it’s solid and stable and not at risk to fall and cause damage.

Also having large speakers on castors provides advantage to easily tweak placement for best sound which is always a plus.