Speaker cable recommendations

+1 Auditorium 23. These cables work incredibly well with tubes. I had much more expensive Analysis Plus cables and when I got the 23’s they brought my system to a new level.

Tube amps always have a high output impedance(low damping factor). This interacts with the varying impedance with frequency of all loudspeakers to produce frequency response variations which would not be there with high damping factors of most solid state amps. The lower the resistance of speaker cables the better to minimize this frequency variation. Of course this doesn't mean low resistance and forget inductance and capacitance. All other factors also matter.

Hey @dynamiclinearity great response. Any specific recommendations?

I was using Older Nordost Purple flare, Sold them in favour of Wireworld Equinox8. great cables. From there I have my final cables , Madison Audiolab E3 Extreme1 cables. Where are you, I have a second set of Madison audio lab E3 Extreme2 cables for sale. $800.00 I upgraded to the 1's. I love this cable and what it does for the soundstage and midrange.

I'm not a tube guy but you might want to check out Lavricables out of Canada. Their cables are light and flexible.  They are pure silver if that's your preference.  They have 4 levels to choose from. Depending on the model you choose, you can get 8 feet (2.5 m) for under $1000.