I find reading this forum somewhat humorous. When I was young, I thought the preamp was more important than the power amp. It’s job is amplifying < 2 volts, so it has a proportionally large impact. Real world experience with how different amps drive very good speakers has changed that, but the only reason to forgo a preamp is funds. The other thing I’ve learned is that separate components are only better than integrate systems of an equivalent quality. A Boulder integrated amp will sound far better than separates from others costing less than ~ $20k. Or a HINT6 will sound better than separates less than ~$5k. I mention all this because the most affordable strategy over time is to buy something good and keep it. The expensive way to go is to keep buying mediocre components and then swapping them out for other mediocre components.