Good choice for 20' XLR cable?

I have Transparent Audio XLR running my top end and Harmonic Technology Truth link running bass. But honestly all you need is a pair of Mogami gold AES/EBU XLR they actually sound fantastic and are a great bargin.

It’s worth trying Mogami Platinum cables with high-quality custom-made G&H silver-pin plugs, available on Amazon with a 30-day return warranty. The only drawback is their 25-foot length. They sound excellent and perform very well. With a price of about $300 per pair, you’re not taking much of a risk by giving them a try.

2nd the mogami platnum great bang for the buck also pangea higher end and monoprice higher end 18 gauge on amazon.you can spend alot on cabels.enjoy the music and I think it more important to run long xlr and short speaker cabels that will be your best return.many reviews agree.

What are you using between your amp and preamp now? If you currently have a an optimal cable for your system, is it possible that using a lower quality cable due to the length will negate the benefit of moving your rack? 

I think I'd want to try the cable before I went through the pains of moving everything.  I just went through that with my new rack. 

What is your system?

DHLabs.

This is a key juncture. It is easy to go cheap because it is long. This can be false economy. You want to move it but you do not want to introduce a weak link that you later must replace. Having said that I find DHLabs to be an excellent budget cable which is an outstanding choice for some systems and a great interim step for others.