I am 57 and my hearing is rolled off above 12.5Khz but I can still tell the difference between high fidelity and midfi. I am still overly sensitive to bright systems and sibilants. I can still appreciate detail, resolution, air and transparency. I can still pick out subtle differences in vacuum tubes and usb cables. And believe it or not, most high end and ultra high end gear is made for middle aged and older people because we are the one's that can most afford it. What is nice about audio today, there is a renaissance in good sounding reasonably priced gear with the advent of better and cheaper DAC's and good digital amps and low to moderate power integrated amps. You can put a nice sounding system together for under $1k.

Your system is awesome. I believe I recommended the Peach Tree. It is an excellent sounding integrated with plenty of power and it would be at home and not be embarrassed with higher end gear.. Your speakers are well regarded as well. If you ever wanted to take your system to another level, upgrading your DAC and digital player to something like HQ Player or Bug Head would really make a difference.

The Schiit Audio switcher works because it has 2 inputs and it allows you to switch between them without splitting the signal.

Cheers,

Larry