Who cares about the THX lable? All it means is that they paid extra for that designation. Some very nice units don't say THX but will put out more clean power than many that are THX or THX II labled.
You should be more concerned about speaker efficiency vs. wattage. A 100 watt per channel receiver with 91db speakers will be way louder than a 150 watt per channel receiver with 86db speakers.
You should be more concerned about speaker efficiency vs. wattage. A 100 watt per channel receiver with 91db speakers will be way louder than a 150 watt per channel receiver with 86db speakers.