How far and wide? NSMT speaker placement

My son’s system;

Rear of speaker enclosure approx. 6ft out from front wall. Center of drivers approx. 5.3ft from side walls. Room is approx. 18ft wide x 32ft long.

Speakers; Magico S3 Series1

Streamer / DAC/ Amp; Mac device running Qobuz or Apple Music driving Devialet Expert Pro 220, either via Air (Devialet streaming utility), Airplay, or USB (‘helped’ by W4S Recovery).

Soundstage is very open / large (deep, wide, high) with no sign of constraint. There are specific regions in the bass which display resonance but it’s not too dreadful. Generally sound is well balanced and open. The mids on the magico are incredibly open of course. Primary listening position about 9 feet away from baffles. Speakers are toe’d in where driver centers are pointed to intersect about 2-3 feet behind head at primary listening position. Its a living room so unfortunately no proper room acoustic treatments. No doubt could sound much better, but its not bad at all especially at primary listening position.

Base reinforcement is one thing, soundstage is another. Low frequencies come out of the speakers in 360 degrees - so pulling the speakers out from the front wall allows the low frequencies breath behind the speakers and adds depth to the soundstage. It’s a must for mono recordings. I have one room set up for mono and another for stereo - mostly because of limitations in room size but also because they have different needs. 

@zazouswing 

Excellent point. I am trying to get the best soundstage I can and think the room is the problem which is why I am moving!

jh

Tilt/Cant is a major factor that many people overlook. I recently added 1 inch to the front legs of my towers and it totally changed the soundstage. This created about  5 deg. of backwards tilt to the tower. I even reran 'Diraclive' to make sure thigs were accurate.

My room is about 15’x20’ and my speakers are 7’6” apart ( center to center ) and the back of the speakers are 2’ from the front wall and 4’ from the side walls.

I’d love to pull them out more, but I don’t want nosy puppy noses getting behind them.

All the best.