I've been a collector (and occasional repairman) of mostly vintage hi-fi playback devices for about as long as I've been working in the profession of recording and mixing. Always searching for an alternative to the pro-audio market of amps and monitor speakers, I've had various "layman" speakers and preamps come and go through my personal studio. Usually stick with Bryston amps (mainly for their ruggedness, true-world specs, and 20 year warranty

, but swap out preamps every now and then. Currently in the studio is a Melos SHA-Gold preamp/headphone amplifier, a Mod Squad line drive attenuator, and an Audible Illusions L1 preamp.
My go to smaller speakers for mixing are mid-90s era KRK 6000 monitors with NOS drivers. (I love these speakers so much I have a collection of the Focal kevlar tweeters in a climate controlled closet!) as well as the more modern Amphion One18. The Amphion happens to be a great example of the audiophile world informing the pro market; they're basically an Amphion 3S in a "pro" matte black dress- along with a striking white waveguide for the tweeter which echoes the infamous Yamaha NS-10 speaker - the original consumer crossover.
Currently looking for a pair of (very) small (read: 4" woofer) for monitoring in the extreme nearfield. As mixers, it's good to have playback systems that represent what people are ultimately going to listen to this stuff on and it seems like the trend is smaller nowadays....and mono! So sad but true.