room setup suggesion needed

All speakers are different, all rooms and furnishings are different, as are components driving the speakers. What you get is a nearly infinite variability. Hence there are some standard starting positions for each of the position variables. The listening triangles cannot be too large or the stereo effect begins to disappear, bass reinforcement from distance from back and side walls, and how direct the tweeters point at your ears effects the soundstage profoundly as tweeters are very directional with sound dropping off, off axis. Slow methodical experimentation required.

@ghdprentice and I would add the bigger the space, the harder to get it right? Not sure since I have no experience with bigger spaces.

I guess it depends. But if you start with a recommended configuration, I would say a small spaces are much harder. You have wall reflections on all sides (including behind the listeners head) to worry about… bass reinforcement you may not be able to fix, except by tube traps, lack of abolition to get enough space behind the speakers… etc.

Decades ago my loft space was a bit larger and more rectangle. I was using the bands Altec A7's, a similar two way bass reflex / horn.

An acquaintance recording Engineer had just sold me his Octavium subwoofer. After showing me how to position a subwoofer in any room he positioned speakers. Approximately 12' apart, 5' from the front wall and possibly 8" from the side walls and very little toe in. With the listening position about 10-15' with a great deal of room behind. He taped the floor with their locations. I never did exact measurements, sorry.

This was my first experience with stereo and despite scratchy LP's and FM, in hindsight this was by far my favorite in home presentation. Having all that room to myself was the bomb. 

Unlike the subwoofer, he could only generally explain what to listen for when locating speakers. He warned that room uniqueness and the vast differences of speakers would be accomplished by a novice with patient experimentation and using a mirror to determine the sidewall first reflection.

Despite all the rooms and speakers in my experience I'm certain I suck at speaker positioning. I'd guess you have exactly the right type of speaker for that size room. Good luck with your setup.    

@ssg308 Wrote:

room setup suggesion needed

I would raise the JBL speakers about 8’’ off the floor, with a slight toe in, see here. 😎

Mike