What audio aspect are you knowledgeable in?

In the 1990's when I was young and had a ton of energy and ambition, I did a lot of trial and error. I mean a lot of running back and forth to various audio salons. I happen to hit on a few combinations of really great sounding gear. Those impressions have stayed with me to this day. I'm much less focused on it all now as health issues and other matters have crowded in. I'm in the process of finishing my new  basement. Maybe that will restart my interest in it all.

Like Willie Nelson said “ I sing, but I’m not a singer, I play guitar, but I’m not a guitar player, what I am, is a song writer”. 

Educated opinions.

I can advise people on speakers, amplifiers, cables, digital to analog converters, preamplifiers, and tuners as well as room setup and placement options but you have to leep an open mind around me because the stuff i suggest may surprise you for sure.

In the last 48 years I've made my living doing everything from live sound, rock & roll roadying, acoustical consulting, professional systems design and installation, design, manufacturing of speakers, selling HiFi, owning a HiFi store, scrounging garage sales and reselling, and 20 years as an IT Architect for AT&T. So actually, I know quite a lot about quite a lot and know there's even more that I don't know. I will confess to loving vinyl and turntables, and continue to be amazed what different loudspeaker designs can do, (BBC nearfield, Magnepans, vintage Altec and JBLs). My next exploration will be an HE full range driver in a transmission line enclosure from my shop driven by (hopefully) a 300b tube amp. And I'll use my Sonos 1s for background music while building it.