Ideal is on the side wall, well out of the killer speaker first reflection spot on either side. Also, consider an acoustic screen in front of the units. You will be surprised with the amount of acoustic energy that speakers produce and when it hits the components, it in itself produces vibrations that may impact the performance. The worst spot is between the speakers, whether they are pulled out or not. Makes nice eye candy but does nothing for the sound of your system. Turntables are a different matter, try to get it out of the room entirely, or keep it acoustically covered. When the speaker energy hits a TT all hell breaks loose. Best way to observe that problem is to get the unit out of the room and listen to the improvement.
Placement of electronics
I've always placed equipment on side wall about mid way along room length. (Atma MP-1, MA-1, Modified Lenco TT, Wyred 4 sound Dac 2, Maggie 1.7, strategic placement of reflectors, bass tubes, cables are top Analysis Plus and Nordost.). The sound, sound staging etc is what I've always wanted. However, I want to upgrade the interconnects between the pre- and the amps, which are 1 foot behind the speakers. Now, the length of these cables is 20 feet. The interconnects I want to use are far too expensive to run 20 feet.
Finally, the question: If I put all the equipment between the speakers, including the TT, won't I pick up more vibration issues?
Finally, the question: If I put all the equipment between the speakers, including the TT, won't I pick up more vibration issues?