What's the best and/or favorite piece of equipment you've owned? And do you still own it?

My iPhone 😁 but a need a better battery

It's supposed to be audio gear funny man...

Pretty strange that the AR setup was your favorite larryro2 after all of that other gear.

Zesto Leto Preamp.    Amazing piece of equipment 

Apogee Calipers, yes I still own them.

Grado MCX yes.

Arc sp-9 mkI mkII mkIII yes.

Sota star sapphire yes.

One 

One of my favorite toys.  It’s keeps my babies safe n sound.   I will never sell it !

Favorites? Several pieces over the years.

AMPS: Music Reference RM9, Mac 225, cj MV50, Custom 6BG6 Conn amp, B&K EX442 Sonata & ST140

PREAMPS: Music Reference RM5 mkII, Museatex AVC-1, Aragon 24K, Superphon Rev Basic DM, Technics SU-9070, Hageman Hapi2

INTEGRATEDS: ASL MGsi15DT, Audio Space mini Galaxy, GemTune GS-01, Onix OA-21s & OA20/2, Tandberg 3012, JVC A-X55 Super A, Meridian 551, Creek 4330

TT: Thorens TD125 mkII w/Rega RB303, Rega Planar 3, Linn Basik/Akito, Kenwood KD5077, B&O RX

CD PLAYERS: Proceed PCD2, Rotel RCD855, Cambridge Audio Azur 840C, Audio Alchemy DDS Pro

TUNERS: Meridian 504, Sansui TU717, Pioneer TX9800, PS Audio ST1, Perreaux TU-1, NAD 4300, NEC T710, Dyna FM3, Creek CAS 3140, Sumo Charlie

RECEIVERS: HK 330C, Tandberg 3030

CASSETTE DECKS: Nakamichi DR2 & BX125, Kyocera D811, HK TD392

SPEAKERS:  ProAc Studio 1’s, Paisley Research AE500’s, Focal Chorus 807V, Tannoy 635/D90, Omega Grande 8’s & Super 3XRS, Monitor Audio R700 MD, Linn Helix LS150, RFT B150, Chateau Research 1.5’s, Rauna Tyr II

Sorry that I can’t narrow it down to just one or two things.  I’ve enjoyed this 40 year journey way too much :)

IMF Mark 4 Monitors, Improved. Great speaker in all categories if you have enough juice. I have a Threshold 4000 so that covered it.

ATC SCM50ASLT active loudspeakers in rosewood. Will never sell these. I've rotated through many speakers over the decades.

@reched 

I owned the large floor standing TDL Monitors for years and really enjoyed them. Your speakers are a predecessor and also really good.

All my pieces of gear are my favorite ...

why?

Because i am in the S.Q. / lowest price ratio scale ...

And i succeed ...😁

But the more irreplaceable piece, with my Sansui alpha in second ,  are my AKG K340 hybrid headphone ...

Compared to them the good AKG K701 or the sextett K240 sound like  relative trash , artificial in the K701 case , or lacking in realism with the better sextett ...( i keep them because if not compared to the K340 they seems acceptable headphone for movies etc  )

But dont buy the K340  though ...😁

It takes me 6 months to figure out their design and how to optimize it and modify them for the best  ...😁

It was the first hybrid and the really only true one till this day ...Kennerton say to me that it is too costly to research about this design and beat it and make a profit  ...

Forget most headphones amplifier to drive them, i tried to upgrade my Sansui alpha headphone out for an acclaimed  Berning ZOTL headphone dedicated amplifier ... It was ,except for the quieter noise floor of supremum quality ,  a disaster, because i loose the "out of the head holography and the timbre naturalness) synergy matter  indeed nevermind how good an amplifier could be with other headphones ...

...They are more difficult to drive than the HE 6 ( two cells dynamic and electrostat of 400 ohms each with a sensitivity of 87 Db ) ... They ask for more than raw power but some reserve power . And well driven and optimized they give an "out of the head" soundfield and a natural timbre better than any headphones i listened to ... (9 headphones)

But beware "out of the box" they aged and must be modified ( 6 modifications and optimizations )