Looking for really fine cables at really low price

Yes, Jupiter copper foils are the first choice followed by Jupiter flat stacked aluminum caps. The latter is warmer and not as resolving, but very organic and full of body and weight. These are much less expensive. The copper foil Jupiter are more resolving and pure. They are more money, but not near the price of the great Duelund caps.

Be sure to get 20% off these caps by buying from Sonic Craft as they usually offer that or you can ask. If your speaker has any resistors, then get Path Audio resistors from Parts Connextion. They are simply the best I have heard, even better than Duelund or Mills etc....

Thanks Grannyring!!!
I'll likely go with the Jupiter Flat stacked aluminum. I have every expectation this will make a good speaker much, much better. I like the idea that these caps are organic sounding with a touch of warmth; full of body and weight is a plus for me and my listening bias. I'm really happy for folks like yourself on the Agon, very helpful and a pleasure to read the threads you participate in. That 20% is meaningful. Again thanks for helping a rookie DIY.

Finally, I have a pair of the WE 16awg & 14awg Star Quad Bi-Wire speaker cables burning in on my Cable Cooker. I made these from Western Electric NOS tinned copper wire by twisting 4-14awg wires for the LF and 4-16awg wires for the MF/HF and cross-connecting the pos and neg runs, resulting in two runs of 16awg wire to each MF/HF pole and two runs of 14awg wire to each LF pole. I soldered some Cardas GRS spades to the tinned wire using Cardas quad eutectic solder. Still need to finish them by cleaning flux and adding heat shrink over the connectors.
WE Star Quad Bi-Wire Speaker Cable

What is the so-called “burning-in” of a cable ?

A: Any cable’s conductors consist of many groups of atoms, clustered in crystals or atom clusters. The borders between these crystals or clusters are critical zones where electron movements are hindered when the condition of these boundaries is getting worse. This worsening takes place e.g. when your loudspeaker cable is moved every day and/or chemical activity is around - latter amplified by higher humidity levels, elevated temperatures and air pollution. Also imperfections in the cable insulation can trigger conductivity changes.
Burning-in is the effect that, despite any affected crystal borders, the sound quality improves again thanks to electron movement through conducting zones like so-called electron tunnels. But... when you move a cable again, those tunnels are “broken” and you then have to start again by playing your music.