I'm sure my hearing is no longer capable of hearing very high frequencies, so the "sheen" of violins is gone. However, not everything "high fidelity" is frequency response. I think transients are also important.

I'm hardly an audiophile but love good music. I currently am running 2 set ups. In my home office,

Kenwood KR9600/ Sansui G9000DB
Pioneer Pl 540
Sony SACD player
Rogers Sound Lab 3600
Pioneer CS99a

In the family room,

Yamaha RX-A1050
Sunfire Theatre Grand Amp
Rega Planar 2
Samsung Blue Ray
B&W 600 Series
Def Tech powered subwoofer.

I haven't bought in to all the psuedoscientific stuff about high dollar power cables and stuff like that, but I take sound quality fairly seriously.

Because of having a wife and kids, I have a decent home system but nothing crazy.

I've spent more money on headphone stuff because I spend a lot more time listening with headphones.

I mostly listen on-the-go with JH Audio JH-16 or Roxanne IEMs. Sometimes straight out of my phone or computer, mostly with a variety of commercial and home-built DACs and headphone amplifiers. I also have and really enjoy a pair of AKG K501s and a pair of Sennheiser HD650s.

The JH Audio Roxanne IEMs are the single most expensive piece of audio equipment I've ever purchased (almost $2000). Totally worth it. They sound unbelievably good.

Acurus DIA-100 Integrated Amp
Acurus phono stage
Luxman turntable
Audio Research CD-1 cd player
Metaphor 5 speakers
NAD tuner

And no Shakti Stones.

Sunfire TGR-3
Arcam CD-73
Sota turntable
Monitor Audio Silver 8's
...matching center, and rear surrounds