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The name and their appearance suggest they are "White Van" speakers. That is not a compliment. From what I see in the pictures the foam on the woofers appears to be self-destructing. Replacing foam in speakers isn't hard and replacement foam rings are inexpensive.
Considering the price, I'd probably replace the foam on the woofers and give the speakers a listen. If the foam is starting to harden and crumble do not use the speakers until the foam is replaced.
I’d put a few rounds of double aught buckshot into each of them and see if that improves the sound. If not I’d move them on to the next guy to see if he can improve them.
I would call these "learning" speakers. If the kid is curious about audio, these are perfect to take apart and see how they were constructed. Are they stuffed/lined? What does the crossover look like? Is that really a tweeter or is it fake?
Destructive testing is always an option as a last resort
Re-foaming a woofer is pretty straightforward and kits of surrounds (front cone suspension component) are readily available. Either that, or there are speaker repair companies that will do the re-foam job for a fee. I'd re-foam them just to get the experience; if I blow it, there'd be no big loss. I can't say anything about the desirability of the speakers themselves, though. Not familiar with them.
I'm in the refoam camp here. Plenty of info here and on Youtube on how to tackle it. Probably less than 20 bucks for the foams, and a couple more for a bottle of Aileeen's "Tacky Glue". At the very least he'd end up with a pair of serviceable garage speakers
Thanks all. I‘ve refoamed a few sets of keeper/better speakers. Looking at their innards is interesting. If my son hasn’t pitched them, I’ll take a look. Going to check out the Onkyo and see how it works.
A back shot of those would be informative of their quality or lack thereof. If they just have screw terminals , probably cheap junk. Banana plug posts or beefy spring terminals, probably better. A look inside helps, too. A cheap capacitor hanging in line with a wire to the tweeter, not good. A solid-mounted multi- component crossover, good.
Before putting any time & $$ into refoaming, check all 4 drivers with ohmmeter for continuity first! If they're open or shorted, donate to a local dumpster- after snagging the magnets. Useful items on any workbench for retention of small hardware while working on shiite.
Cygnus is actually a German high-end loudspeaker manufacturer. These still may be white vans, capitalizing on the Cygnus name. I think it's worth it to remove the drivers for testing and to verify if they're a name brand. Also, a look at the crossover as @Catmanboo suggested would give one a good idea on their value.