How many people do you think have the same DAC, amplifier, and speakers

My ex-wife has the same system as I do, along with everything else I used to own.

Many people go into “cliché” : B&W  and Accuphase , Luxman (.like it) , Macintosh , or Son.Faber with those amps : for  me , this is hi-fi , no high-end.. very good high-end is difficult to find , or The people don’t know it. Big fans of audio gonna listen to Less known product ,which are better in sound.: An example : speakers: Ilumnia Magister MK2 , Magico , Keff Muon, … dac : Ear , Metronome Technologie, Mola Mola Tambaqui,… amps: Mal Valve 2 , Ear 509, Luxman MO2&CO2 and tube amps of Luxman , VAC , Wavac , Trilogy,… you have to find out , what’s for you The best in match and sounding. Good luck to everyone and enjoy your music !

I'm sure plenty of folk have my amps (Yamaha A-S801 and an Anthem MCA 225) but I'm fairly confident that nobody has my speakers. Amrita Audio Reference Standard floor standers from about 1992. I LOVE these things. A 13 inch cast basket woofer, 2 Dynaudio 6.5 inch mids and a Vifa metal dome tweeter. Felt lined mid section. About 49 inches tall, 14 wide and 16 deep. They sound awesome to me. Possibly better than my previously owned Enzo XL's and currently owner JBL Studio 590's.. 

The answer is 4.

Same DAC? My guess is ... about as many as there are sold?

If you meant the same DAC AND same amp AND same speakers ... given the amount of brands and types I'd indeed say 4.