Best bang for the buck


What’s been the most cost effective item you purchased for your system? 
I will go first- a Zerostat I bought 40 years ago. Next most cost effective purchase has to be a Denon DL103R cartridge which I bought new for $300. 

zavato

A Velodyne SPL 1000 sub purchased new in 2000 for $800. Still in use in main system 

BAT VK-P5- $600

Odyssey Audio Stratos- $225

Mytek dac- $300

Denon dp-57l- $250

Audiolab 6000cdt- $275

Belles Aria integrated- $900

All used of course, but every single piece in pristine condition. It pays to be patient.

For me it’s absolutely room treatment. It’s about 7% of my system’s value, but made a 50% improvement in my sound quality🎵