What the heck, we can lump Integra and Onkyo together.. I owned an Integra receiver not long before my last Onkyo receiver and there was no sonic difference, if anything the Onkyo was an improvement and cost about $1K less.
In fact that raises the interesting question of how audio companies differentiate themselves. Both Sony and Pioneer wanted the bottom end of the market but then had an “ES” line that cost more and those two letters were like a code for audiophiles, as if to say here is the good stuff, the rest of our line is crap. Others create separate divisions such as Esoteric and Integra. Esoteric charges about 20 times more than the equivalent product from their parent company but the build difference is at least obvious to a buyer. Integra cost two to three times what Onkyo charged and presumably used better parts, but the end product could hardly be differentiated from the best Onkyo offerings