Really depends on the amp. I have seen some bang away for a long time as well. Not everyone can afford a several hundred - thousand dollar amp. I prefer not say its junk if it does what it says it does.They are budget for a reason. Cheaper parts usually. And don’t last as long as the better built amps. Also efficiency isn’t what you might think might say 86% at 4 ohms. But drop it down to 1 ohm. Then you’ll realize what junk they are. I’ve seen some of the amps go up in smoke right out of the box. The quality control isn’t there either
Let’s watch the nuthuggers come out of the darknessLet the hate of brands beginnnnnnn...............