Speaker Placement


Hi
I just finished my Audio Room and need help regarding speaker placement. The room is 20ft long by 16ft wide with ceiling height 8ft 9 inches. This is located in a basement all poured concrete. The front half of the room is carpeted while the back is wooden floor. If I sit facing the speakers the right wall is all uneven stonework and on the left I have placed some DIY panels at the first reflection points. Behind the speakers I have placed 2 DIY corner traps. So far the ceiling is bare and I have no panels behind the speakers. I have placed the speakers 3ft from the side wall and 4ft from the front wall all measured at the centre of the drivers. While the sound is very good (no bass bloat ect.) I am unable to get a good sound stage.  The seating position is about 3ft from the back wall. 
My 2 Ch. equipment is as follows. 
Speakers B&W 800D (Not Diamonds)
Power Amp Krell KRS 200 Mono Blocks
Pre Krell KRC 3
Sources Cambridge Audio Stream Magic V1 and Clear Audio DC Performance with Dynavector D17.
Phono is Project Tube Box DS. 

I just want input if this sounds right as far as the placement goes. Should I try and move the speakers closer together? 

Thanks
srafi

Showing 3 responses by aryo

One of the most difficult things I experienced is to get the tonal balance correct. It took me a while to realize that speakers placement changes as you change the volume level of your playback and music selection. If I were to make the adjustment with predominately vocal reference track then the sound may not be at its best when playing classical music.

I doubt there is one position for all types of music. It is just a compromise.


My room is well damped. Here is video of the sound with speaker angle about 8 degree and straight. 

you can find more videos in the playlist. 

https://youtu.be/qZcDHQQofaM
Thank you timlub for your insight. Using REW, there is a dip around 200Hz. I have also deliberately created peak at the bottom frequencies because a flat response did not sound attractive. 

The strange think is contrary to a slight bump around 5kHz in REW measurement, the actual spectrogram of musical content shows a loss around 5khz. When speakers turned outwards the intense of HF reduces but evenly spread. In the video, the changes can be heard every 15 seconds.

When listening to each position individually without referencing to the original recordings, all of the people who auditioned preferred the intense and  clear sounding 15 second setup. However, when the same sound heard referenced to the original the preference changes. 

You are right that line array bipolar speakers may behave differently.