Do you use one brand of electronics or are you mixing brands what has worked best for you?

I've gone for synergy with a system of mainly Linn Products components. 

I started out with a more eclectic system, but this is the way it's evolved over the past 25 years.  

Mix and match for best sound:

Preamp:  Rogue Audio tube

Power Amps: Odyssey Audio SS mono blocs

DAC: Schiit Gungnir2

Streamer: Innuous 

speakers: Fyne 

Cables:

  Speaker: Silversmith Fidelium

  ICs: Fidelium XLR, Groneberg and Morrow RCA

  Digital: Pine Tree Audio & Audioquest

   Power: Ice Age Audio & Audioquest

It was a little bit of trial and error on the power amps and cables, but what I have now is yielding superb results.

The OP is a dealer for Infigo and should make this disclaimer on every post. New people here every day and this is unethical.

That being said I mix my electronics to suit me never found a house sound I like. With cables I use all the same brand for IC and Speakers, Purist Audio Designs, Digital (USB and Ethernet Clock)) Final Touch Audio, Power LessLoss, C-Marc Classic. tone arm wire is Cardas. 

Mixing different brands doesn't matter.  Sure, there are situations where there might be some issue, but for the most part, no.  I remember years ago, a Linn/Naim rep visiting a local dealer told me it was never a good idea to run a wide bandwidth preamp into, I guess, a narrow or narrower bandwidth amplifier; some instability issue, I recall.  Yet the dealer ran a Spectral ultra-wideband preamp(into the meagahertz) into an Audio Research tube amplifier with spectacular results.

@lanx0003 in my system it definitely has a sound that I prefer through out my system.  Open detailed with low noise floor and nice soundstage and placement with an ever so slight bit of warmth. We all have sounds we prefer and your equipment have to give it to you