An audio component you just can't let go

All of them !  Plus their boxes stacked to the ceiling in the garage!  But if it's just the main ones i don't use any more but remain in the rack for aesthetics:

Nakamichi CR4 Cassette Deck

Akai GX-265 R2R deck

ADC/DBX SS-525X Soundshaper Equalizer/Pink Noise Generator/Analyzer

Infinity RS Kappa 7 speakers, bought new off a dealer's showroom floor in 1989ish.They have managed to survive 30 plus years of my life, but with some wear. These were my first audiophile purchase, and are incredibly important to me.

I had the foam surrounds replaced for the woofers, Millersound refurbish the Polydome midranges, and luckily the EMIT tweeters have survived.

I had GR-Research update the crossover networks with modern and much higher quality resistors, caps, air core inductors, bypassed the pots, replaced the internal wiring with OCC wire, and added WBT speaker connectors.

They sound amazing! But I've spent several times more than what the speakers are worth, but to me it was worth every penny.

HH Scott LK72 (I’m listening to it now)  Restorec in 2016

Job 225 by Goldmund had since 2016

Van Alstine Transcendence 8 preamp.  
 

HH Scott LK72 (I’m listening to it now)  Restorec in 2016

Job 225 by Goldmund had since 2016

Van Alstine Transcendence 8 preamp.  
 

I like to joke that when I die someone has to bury my Quad ESL-63 electrostatic speakers with me because there is absolutely no way I am going to be parted from them.  Fate was kind to me because she put a stray copy of Opera News in my doctor’s office where I happened to see it and then read an article which insisted that Quads were the perfect speaker for opera lovers.  I am an obsessed opera lover and I also love classical music of all kinds. Quads are renowned for their beautiful mid-range.  They do wonderful things for the human voice, for violin, piano, guitar and so much more.  I imported them in 1985, had them completely refurbished in 2017 or 2018 and then in 2023 I snapped up a just refurbished pair of the US Monitor version of Quads.  I  feel like the luckiest person that I will never need to agonize over what my next speakers might be.  I already have the perfect speakers for me and perfectly suited to the kind of music I like.