I was a kit builder starting in the early 70’s and a music fan listening to the BSO and my fathers Quad ESL-57’s. Then became a jazz and rock guy and started working in a very cool college Stereo Coop. Started doing dual ADS 710’s, Advents, Cizek 1’s. Basically changing equipment as often underwear. Got bit by the Magnepan I and II bug - in the late 70’s but still using zip cord.
Got full on blown audiophile in the 80’s and into the 90’s. Worked for high end audio outfit for 2 years. Brought home everything - MC’s, electronics, but I modded a bunch of speakers (the most radical DQ-10’s ever, ProAc EBS, also made and sold subs). I quit to get a real job, and when I lost the easy and cheap access to equipment started hanging on to things.
Had a VPI TNT Jr w/ Clearaudio straight tracker and Koetsu’s for 20 years
Pass amps/pre-amps with a tube side trip for a bit for 30 years
ML CLS IIz for 10 years (w/ Gradient subs) then the Verity Parsifal for 15
Some upscale wire, but nothing insane.
Those were some very good systems.
So, I did lots of A/B blind testing and some ABX blind - but the hardware they use for the X really sucks.
I conclude that unless you have very difficult speaker loads (usually panels) that O2 free copper, with copper over gold spades (Vampire best)
I conclude that RCA cable is radically different in a room with lots of stone and concrete, I also find that balanced cable does not suffer the same problems, and being quieter, and in the case of the amps I used being better with balanced that’a what I use
I hated digital more than Neil Young ever did. TELARC direct to disc digital? Brutal. Early CD’s and players - gross. Then around 2002 I heard an ARC and KRELL CD player that were very musical - for the small pocket change they cost (over $20k each). Finally in 2015, heard the first two DAC’s that sounded great - the Gumby and Yggy. Sold off almost 10k pieces of vinyl and Clearaudio table.
Power cords? A dealer tried to suck me into one for $5. Brought over my used $250 core and it was a tie. I have heard them sound different but there is no hierarchy. Just a round robin - so my 1990 amp cable remains.
Now headphones. I have an affliction for HFM - so the cables, pads, head straps tend to suck. The HE-500 stock cable is awful. Any O2 free will do the job - and guess what they sound different, So does the HEX v2 and HE-6 SE v1
Cans with junk resolving power like the 4XX and X00 - cable doesn’t matter because they cannot resolve.
Mods on x-overs, tweeters in speakers. Pads, anti vibration aids, “fuzzor” for some planars, make a big difference.
Music playback is at this time the sum total of several parts and how they interact, Almost every amp and pre-amp are set up for a different load - few speakers except Maggies have flat curves. Nope just because the reviews are good doesn’t mean it’ll fit. Might mean its good enough to chase down a listen.
But just because it sounds good to you, is it really good? I listen to well recorded instruments, and knowing how they sound live or a very good system helps you decide, Just listening to the same non challenging music might be comfortable, but its not assurance of fidelity.
If you have room speakers, unless you are very lucky or know what you are doing you are losing a lot of fidelity to the room.
