Do wheels of PA cart need shock aborber?

I have worked on a cart made of a wooden tablet and 4 wheels to carry my subwoofer, but I have some worries I would like to ask you guys:

I noticed some shake and I am worried about it damage the internal components of the sub. It shakes when I carry the cart through a stone non leveled terrain.

Should I add shock aborbers to the cart or if I go slowly through the stones is Ok?

The wheels are huge 15 centimeters of diameter each.

Later I can share here a picture of the cart.
 
Use pneumatic tires instead of hard casters. The internal components are not that fragile so some shaking isn't a big problem but you should do what you can to prevent exposing them to heavy shocks like what happens if the cabinets were dropped onto a hard surface
 
It is a subwoofer. It spends its life being shaken from the inside.

I agree^^^ Ties with air in them will go much smoother. Also hard wheels are a lot more difficult to roll over things like cables and doorjambs.
 
There is plenty of moving air and changing pressure gradients inside these. Having operated them professionally for many years, I will attest that in my experience, things do come loose.

But beyond that, it all gets loaded into a truck and hauled to the next gig, and the road shakes things up regularly. The equipment is designed for this use and holds up remarkably well. Over the decades I was never concerned about the trip from truck to the stage so much as I was the trips down the road.
 
I agree with Enzo.
From time to time we have to pick a screwdriver and tighten all those screws...(You know those powered speakers with 20+ screws to hold the amp plate...& 20 more to hold the inside amp cover.. and then the jack nuts.)
The cheaper the stuff is, the more screws You have to tighten or replace / glue broken stuff.
It's called maintenance, like blowing the dust from amp's fans.
 
That cabinet looks like an excellent candidate for a two-wheel dolly. If you could find one cheap enough, with pneumatic tires, maybe even semi-permanently attached to each cabinet.

The pieces I've had with 4 casters rarely rolled in the exact direction I wanted them to. At the least, I would consider replacing two of them with fixed wheels.

Just a thought.

Cheers
 
That cabinet looks like an excellent candidate for a two-wheel dolly.
Wow, that is a different idea. Cool Rick! Thank you.
The pieces I've had with 4 casters rarely rolled in the exact direction I wanted them to.
Yeah it is absolutely true, a person without motor coordinate control can crash the subject in somewhere. Unfortunately, my wheels are all spinning wheels lol and it is true.

The best cart is the cart that works for you and your money!