Buying speaker cables on-line: Is this advisable?


I am in the market to upgrade my speaker cables for my system and will definitely be interested in considering used cables because of cost savings.  I've started doing a considerable amount of research on selecting cables and it's very possible that I will buy the cables on-line.  The dilemma I have is being able to see/hear all of these different cables that I am considering before making a decision.  Are there certain questions I should be asking about performance or construction when making a decision?  I have a solid state amplifier, Ayre AX-5 twenty.  Are there certain types of cables that perform better with solid state amplifiers?  Is there a way of getting performance information from manufactures like MIT, Purist, Kimber, etc?   Is there is any situation in which one could consider purchasing cables without first hearing them in a system.  Any and all thoughts are welcome as I continue this journey.  Many thanks.
phono27
just get 12 gauge good copper cables

blue jeans
audio envy
pat cullen cullen cable
among others - high value makers using belden mogami etc etc

one word to the wise - morrow is another brand that will come up - they may make good cables but you email them once they bombard you with hundreds of push emails - literally daily -- wtf!!! so i put them in the spam folder, what a turn off...

https://forum.audiogon.com/discussions/who-makes-budget-speaker-cables-which-are-truly-good-or-exceptional-2
Optimal cable selection really requires comparisons of various brands in your own system. There is no other way to make an optimal selection.  I don't think the information a manufacturer or dealer can provide to you will reveal how the speaker cable will work in your system.  Of course, you can buy a reputable speaker cable without ever having heard it, and it might be adequate, but you will never know if it is optimal or merely adequate.

Assuming you want to make comparisons, then there are two approaches you can take.  You can "borrow" cables from manufacturers who offer money-back guarantees or in some cases from dealers.  The benefit of this approach is that it involves the least hassle. If you don't like how a speaker cable sounds, you just return it and get your money back. The downside is that you will end up paying full retail or close to it for a speaker cable, unless it happens to be available on the used market.

Alternatively, you can buy used, try the cable in your system, and then resell it if it doesn't float your boat. The obvious benefit is that you get a discount in the used market. The downside is that it can be a real hassle to resell cables and there is some risk that you won't succeed in reselling them without accepting a substantially lower price than you paid.

I personally don't like this approach, particularly because speaker cables are more difficult to sell on the used market than interconnects and power cords.  I almost always have bought cables new from dealers or directly from manufacturers after having heard them in my system.
Cables are the same as anything else. Only difference is buying used the selection is a little different. In my case I know from decades experience that Synergistic Research makes excellent cables. So I look for used in my price range. Then when I find one the next step is to search for reviews and listener comments. Construction and technical comments are frankly irrelevant. All I care about is how it sounds. Read reviews and all the listener comments you can find. Search around the forums for comments.  

The last one for example was Synergistic Element Copper Tungsten Silver, which was a $7500 speaker cable when new 15 years ago, only about a grand by the time I bought it. Awful lot of cable for a grand. Just to give one example. Synergistic is highly recommended when looking used because they have been making quality wire for so many years, there's so much of it out there, and its very reliable in terms of sound quality. If you like a thinner faster more hyped sound then you will gravitate elsewhere. Point is its all based on what you want in terms of sound quality, and what others say they hear in terms of sound quality. You match what they say they hear with what you want and when the two meet together at a price you can handle then you go for it. That simple.
There are many choices for speaker cables out there. If you have an unlimited budget, I think you should buy every available cable, then select the one you like the best. Failing at that, I think you should follow millercarbon’s advice and read reviews from members here on Audiogon. At some point, you should have enough confidence to purchase a set of cables. I recommend buying a used pair, by a reputable manufacturer. There are no "BEST" speaker cables at any price. If you find the pair you like, keep them. If not, keep looking! There are no magic bullets in this hobby, it’s mostly trial-and-error. That’s why we all have so much of this stuff.
Only buy if you can return. There's a website called The Cable Company where you can do that.
https://www.thecableco.com/lending-library
The variability is too extreme to rely on opinions. 
The Cable Company has a sister sight called Usedcables.com as well. For the most part reasonably priced. TMR (The Music Room) sells regularly on Agon and has a generous return policy. Some other dealers sell demo gear, usually can be returned as well. Just have to look around. 
To another post, I have a set of Blue Jeans cables. For the $$$ not a bad cable... but they simply don’t compare to the likes of Shunyata, Analysis Plus, or Transparent. I don’t know other brands first hand, as mentioned the best thing to do is try some... they all have pluses and minuses. You just need to figure out which suits your system and your ears.
Buying used is a good way to go with cables in general if you buy right you can always resell and move on to something new with little or no loss.
All the hype and opinions about speaker wire is just that - hype and opinions! No hard engineering data to prove that cable A is somehow better than cable B. It's all "my golden ears told me it is so'. The whole wire business is a clever marketing ploy to befuddle and snare the gullible and unwary! 
Note that Blue Jeans Cable assembles several gauges of Belden and one gauge of Canare for speaker cables. They are quite different in their sonic presentation. I prefer the Canare over Belden, but am using older Alpha Core Goertz cables at this time.

Its been said too many times, and I’m not sure what it really implies, but chances are that 90% of the rock, blues or soul music you listen to was recorded in a studio using Belden, Canare or Mogami cables. " A fiddler on the roof, a most unlikely sight. It might not mean a thing, but then again it might!"
another concept to bear in mind here is that the smaller the signal, the farther it needs to travel, the more important the cable carrying it will be

at the extremes, for example -- low output moving coil cartridge output traveling through tonearm then interconnect cable to your phono stage ... you can really hear the impact of different wire

otoh, short run (6-8-10-12 ft) of speaker cable driven by a good amp... not so much impact (or you need very tonally imbalanced wire to hear a difference)
Check out the recent thread with comments about the Cable Company.

Cables on Audiogon and the other selling site are less expensive than on usedcable website.

Unless you're working with a dealer and buying new, and unless that dealer has a range of manufacturers and is willing to lend out, your options are limited.

First, decide on a price range for a given length.

Then read several threads etc. on the relevant cables.

Be warned: for every 10 posts you will find 18 different recommendations.

When you get a sense of what interests you, look for a good deal.  Hifishark is a good way of checking prices.

OR... you could look at Ayre's own, which I believe are based on Cardas.