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

Having my room, lectrical panel, and grounding rewired and upgraded with dedicated lines to my room. It was cheaper than the power cords I bought,. It made everything in the room sound better instantly.

Lil Feat mixtape I made for my future wife - ) sticking around 36 years on….  

Just in case anyone thought I was being serious...

Today, with the help of my neighbor, we made 6 cable lifters out of hardwood blocks for $6 plus 1 hour to cut and  stain them.

They look cool and the sound stage is wider, blacker background, and the bass is tighter .

...and the Softone Model 4 tube phono stage. Not pretty, but it is really good. A ridiculous bargain at $650 ($800 including shipping to the USA from Japan). The pair of NOS Mullard's added $450. Still a bargain. 

Orchard Audio Starkrimson Monoblock 25 amps. Absolutely is on par with my 5x the price tube amp. Different but equally satisfying. Highly recommend.