with single sub have it in your listening chair then crawl around on hands and knees to find best spot while playing rolling bass line.
corners or walls work well.
Also, if you crossover at fairly high level (60Hz or higher) then try to keep sub within 3 feet of mains to reduce group delay. Or else, use digital correction to delay mains and keep group time with sub.
Once you have placement, play accoustically recorded cello to integrate with volume and phase. Don't integrate using same bass line you used to place, you need to get upper bass working with bass.
corners or walls work well.
Also, if you crossover at fairly high level (60Hz or higher) then try to keep sub within 3 feet of mains to reduce group delay. Or else, use digital correction to delay mains and keep group time with sub.
Once you have placement, play accoustically recorded cello to integrate with volume and phase. Don't integrate using same bass line you used to place, you need to get upper bass working with bass.