Is 35’ and 50’ to long for RCA sub cables?


I have four subwoofers now and want to run cables for the rear two. If I ran them along the baseboard and tucked them down underneath I’d need about 35’ for one sub and about 50’ for the other.
Is that to long of a run for RCA sub cables?
todd1010
@OP,
You are between a rock and a hard place.
I would take @audioquest4life 's rec and get a good shielded sub woofer cable in RCA. I know Audioquest makes some inexpensive sub cables that include a grounding wire-which should minimize any ground loop hum.
Bob
I ordered two sub cables from Mediabridge on Amazon. 
One cable was 50’ and the other was 35’ and both were perfect for the length. 
Hooked them up loosely to see if there was any issues and nothing, worked great and sounded great. No hum!

Now I have to get them all working in harmony together!!!

thanks