One pair of speakers, two different speaker wire

I recently upgraded my speakers (same speaker line). Although I find them to be more refined, they have a tad less body. I decided to switch my speaker wire with a custom-made pair that’s been lying dormant for several years. It gave me the body I was looking for but a little less air and clarity on the top. I decided to use both pairs at the same time. Now I’m getting everything I was looking for, but I’m wondering if I’m doing any damage to my tube amplifier? Thanks for your response.