FWIW,
+1 for the Peavey speaker design. A Peavey speaker (in
the original Bandit) was the only thing that ever went wrong for me and it was quickly replaced for free long after the warranty date expired because they thought that was the right thing to do. Peavey stuff that I bought 40 years ago, used and sold is still around. I have friends that still complain about the weight of their CS-400 and 800 power amps but they mist up when you tell them to modernize. I don't know why I no longer have a single Peavey item but I do know that all the ones I got rid of were to friends and family---and they still have them or passed them on.
I like the quality and
performance of Carvin gear but I did have two power amps fail on me. I can say that I got my money's worth out of each of them.
I think Nady should stay out of the speaker business entirely but some of the DI's and hum eliminators, while not my first choice, come in handy in a pinch and do their job. The NADY SPC-25 (no longer available?) and the SCM960 (rebadged Joemeek JM37DP) are gem-sleeper under-$100 LD condenser mics. Nady wireless units always find something to bug me---no pun intended.
No direct experience with Alto or Phonic.
Every Behringer mixer I've had (and bandmates preferred them over the Mackies) developed some sort of problem (phantom power issues, bad channel, lost channels, never fatal, sometimes repairable). 2/3 of the Behringer power amps that I own failed at about the 2-year mark---just would not turn on. Of the four Behringer guitar amps that I owned, all four are still working for the people I sold/gave them to. I have/had a bunch of their compressors but they never got any/much use. The DI20 is a very versatile worthless piece of hissy crap but a lot of their other little boxes fall into the Nady category---useful in a pinch. We sometimes use the XM8000 mics for audience participation; they seem work fine. I have a B205D (purchased after two Mackie SM150 failures) and a B208D, their class-D powered speakers, and they have been reliable. I also have an ADA8000 and an SRC2000 which have been workhorses, as has been an UCA-202 for USB interfacing consumer audio sources and their CT100 cable tester (the "intermittant" function is priceless).
Paj
8^8