balanced vs. unbalanced sound quality


hi all i just got a theta dreadnaught amp and i currently have it hooked up through the unbalanced inputs.

i dont know very much about this topic, so i was wondering if i got balanced cables, would the sound quality improve? i will be using all 1 meter cables.

i know that higher end cables will sound better, but lets just say that the balanced cables would be of the same quality as the unbalanced.

thanks all,
cheers
nineballg
Coming back to this old thread where I once posted, with specific answers to the Parasound A21 amp. Here it is:

http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1264134945&openfrom&23&4#23
Im not afraid to say it. That Audiofeil guy can be compared to two things: a broken record and summers eve. "Cable selection/performance..." ahh shut up. Xlr's took away a hum coming from my speakers, and lowered my noise floor, but I'm sure it could be dependent on whether you can hear or not.
B_limo,
Good to know you got the XLRs. Did you compare before/after with the RCA? Did you get the bass back?