Need 20 - 25 foot spk cables.

IMO,

Always make speaker cables same length even if one speaker is closer.

Make them longer than you need now, give yourself some 'extra' leeway for unanticipated relocation.

After this and that, and reading theory ...., I decided multi-strand, small diameter, each strand insulated, all in insulated jacket makes most sense to me. Sound like Cat 5 cable?

I made my own long speaker wires, easily and inexpensively. Just buy roll of factory made cat 5, cut equal lengths, twist them, make good connectors each end.

Twist. First time I twisted a long run it was hard. Then I figured out, twist a few feet, tape there, twist other direction a few feet, tape there, repeat. Use colored tape, I have 3 sets, various lengths, different color tape. Sometimes I run 2 systems, SS and Tubes, to test, and to let others hear the difference. 

Same music, CD, LP, Reel to Reel tape, i.e. Sgt. Peppers. Everyone picks tubes over SS. Everyone picks LP over CD. Everyone picks Reel to Reel tape over LP.

Note: noise INCREASES as you go from CD to LP, and INCREASES from LP to TAPE, but, when the music starts, preferences go as I described.

It won't cost you much to make a 25-30 ft pair of twisted cat 5. Then, if you try expensive cables (that you can return), you can compare.



.

In my experience running long speaker cables often is not a good idea. Think about how much a set of Sound Labs set you back, and the simple fact that they are one of the most resolving loudspeakers on the planet. Running long cables often results in a noticeable loss of impact and resolution! 20 to 25 feet is going to have an effect and you won't be able to solve it by throwing money at the cables. In all the cases where I've seen speaker cables longer than 10 feet, placing the amps right by the speakers and running a balanced line to the amp has resulted in greater definition across the spectrum.


The problem here is no speaker cable is a perfect match for any loudspeaker and the longer you make the cable the worse this problem becomes.


Now you don't need balanced equipment to do this- you simply need a set of line driving transformers at the preamp and line receive transformers at the amp. Jensen makes excellent transformers for this specific purpose. You run single-ended to the transformers, run a long balanced line between the transformers, then convert back to single-ended.

Now if any of your equipment is balanced, you may not need one or both pair of transformers. We built our balanced preamps specifically so we could run long interconnect cables without coloration or losses- in my house I was running 28 feet of Fulton speaker cables; when I went to balanced operation and ran 6 foot speaker cables instead there was an instant improvement in clarity- IOW musicality and neutrality.


Note that most high end audio equipment (sources and preamps in particular) do not support the balanced line standard. This means they can't drive long cables and the cable you use might sound different; if everything supports the standard then the cables will be transparent. If in doubt use the transformers. They are inexpensive relative to the cost of decent speaker cables!

I also need 22 and 25 ft. lengths due to domestic equipment placement, and thoroughly enjoy AntiCables. They were one of the only affordable solutions for me.
I won't pretend that I know if they'll work in your situation and with your speakers, but here are the tech specs for your perusal.
I believe the Level 3.1 would be the choice. (They are referenced as Level 3 on the spec page).
http://anticables.com/technical

Thank you everyone for for the info and replies.  I agree with many, and have mixed feelings about others.  Yes short is great agreed, and I just spent a good ampunt this past spring for 10 foot of a high end brand of wire.  No, the poer amp can'y ( easily ), be moved.  I'd have to pay to have a new outlet installed.  I'm not sure about long runs of cables from the preamp either, but I do have balanced outputs, but then again a long run of preamp to amp cables would be pretty pricy as well.

Roger Sanders actually says that the coax cables actually are a good match for a panel type for speaker.

Wire is funny stuff.  You see so many ads for expensive wire, all with what they call the "best" method of construction.  Does anyone know for sure.  It's all up to each persons ears. 

Monolith Speaker Wire - 50 Feet - Silver - 12AWG with Braided Nylon Sleeve, Oxygen Free Copper, Multi-Strand Conductors, PE Insulated https://www.amazon.com/dp/B07MT4QVTM/ref=cm_sw_r_cp_tai_Ki.8Db0VB0DRW