@OP, the simple truth is that, understandably, no audio manufacturer is going to advise you to treat your room acoustically before making a decision on their product.
In an untreated room audio enthusiasts are making the wrong decisions all the time. System too bright?..buy a new amp. Too dull..buy a new something.
My advice is to sort out your room before you change anything. A treated room, even one with just basic additions will have an enormously positive effect. If you spend some effort, $100 on a microphone and download for free REW you will have the same tools the professionals use and will be able to optimise the room.
If you are not prepared to learn how to use these tools, which is not difficult, then install bass traps in the corners and absorption panels at the first reflection points. These are what I referred to as 'basic' and will help smooth out the low frequencies and reduce some of the long decay time. Check out DIY super-chunk bass traps, easier than you think and cheap.
I can provide lots more info but it mostly falls on deaf ears so I'll stop here. The vast majority of posters have not heard even a modest system in a properly treated room and just dismiss the suggestion, finding the idea of throwing more money at their hobby more attractive.