Ladies, gentlemen, and otherwise designated fellow human beings, I present you the 'Subs need to be obviously repositioned' soundsystem.
Enjoy the music!
What are you looking at in terms of audio gear:
Speakers: Tannoy 615. Not for everyone but I love love love them.
Subs: Will keep those to myself until I have 4.
Amp (the silver/champagne one): TEAC A-H500i (a true little gem imho), feeding the 615's
Mixing amp (the very dark grey one): Dateq SMA200. Devised as an installation mixer+ amp for bars and such. Very dependable tech from a Dutch company. Especially their dj mixers were very, very good. Feeding the subs now.
Dj mixer: Gemini UMX9, purely there so I can feed one signal to the crossover and one to the crossover. Setting thing up diffenently soon so it won't be needed any more.
Active crossover: Behringer CX2310. Purely used to control the frequencies going to the subs at the moment. The Tannoys use their own passive crossover.
Sources (not pictured): Laptop + motu soundcard or iPhone + standard minijack adapter/dac. Record players have been moved out of the way during this period of active crossover experimentation.