Biggest Sonic Improvement


What is the biggest sonic improvement you have ever made to your audio system. Mine was a surprise to me. I replaced my Audioquest PT6 tonearm on my VPI turntable with a VPI JMW Memorial tonearm. The improvement in the sound nearly knocked me off my feet. I never realized a tonearm coud make that much difference in sound. How about some of you guys, what has your most exciting improvement been.
slowhand
Replacing an audioquest digital pro cable with illuminati D60, synergistic research master couplers, and a Meridian 200 transport replacing a Rotel 855.
When I hooked up a 2 dollar yard sale B.S.R.turntable that had a dirty old Shure cartridge on it.I had to super glue the cantilever on it as it was flopping around.The first second I knew my Digital days were over.Beat the HELL out of my old Denon DCM 440 0r 460 (forgot model #) I havent looked back since and now have a Rega-25 and Grado woody.ANALOG!!!!!!!
A phono step device/and cartridge from my mass market Sony tt and (yes) into a reciever's phono input.The step up & cartridge were bought used.the brand?? The still highly rgarded Fidelity Research.I played records,non stop till I dropped.That was 21 years ago.I have spent tons of dough,re,& re discovering what else was in those gruves.that was the biggest-for -the least
A phono step device/and cartridge for my mass market Sony tt and (yes) into a reciever's phono input.The step up & cartridge were bought used.the brand?? The still highly regarded Fidelity Research.I played records,non stop till I dropped.That was 21 years ago.I have spent tons of dough,re,& re discovering what else was in those gruves.that was the biggest-for -the least.Kids,and DIY ers,proper alignment is the key.Pay to have it done well.
When I finally spent the money to buy some actual high end interconnects instead of some generic OFC cable. I hated myself for not doing it earlier.