I have a BAT VK-20 and BAT VK-200 what are the bes

Well the more playing time that goes by, the better the system is sounding. That's always been my experience with building/changing systems. I've also been thinking of upgrading to a VK-220 with BAT-PAK, and selling the VK-200. Then I would be in the burn-in cycle all over again. Any experience with the Audience AU 24 cables?

I have sold the BAT equipment.

Thanks to everyone so far. Hi Gunbei, I'm currently using Monster Sigma Retro Gold interconnects and speaker cables. I like these cables but after the expense of the new preamp I was just wondering if I was really getting the best sound from my investment. I would like for the high end to open up a little bit and the midbass to tighten up. These things may happen after more burn in time (the speaker cables are fairly new.) The equipment I'm using doesn't have any tubes. I previously used a VK-30 tubed preamp and decided that I wanted to go back to solid state. About the time the VK-30 was burning in and sounding good, (It was still a little dark sounding) I lost a tube. This was just too frustrating for me. Thanks again for the input.
Gary

I'll have to put both on my 'short list' for audition.
Acoustic Zen Hologram II
Audience AU24
Thank you Gunbei.