I did a search on speaker placement but the first seven pages of results only seemed to talk about home cinema not hifi speakers so I though I'd start a new thread. I've recently moved home and ever since setting up my system in my new place there has been absolutely no bass. The bass has just completely dropped out of my speakers - not just the very low end but everything. Initially the only way I was able to partly solve this was to use my SVS to produce the bass (only turned to the first notch, signal via the high level inputs). Stereo Imagery is also weak in comparison to my previous small room (9 feet by 10 versus 14.5 feet by 18). All in all I'm gutted as I was expecting the sound to get better not worse with the larger room. The speakers are Proac Response 1.5's, so fairly large speakers normally very capable of producing copious amounts of base. The speakers are placed about 50cm from the rear wall, 2 meters apart and about 1 metre from the side walls. The room is about 4.5 by 5.5 metres wide. Now my understanding of speaker placement was as follows; 1. Speakers should be between 1.5 metres to 2.5 metres apart. 2. You should avoid placing them in corners. 3. The bass on floorstanders doesn't need reinforcement so should be kept away from the rear wall (unlike bookshelf speakers). This is especially the case with these as they are rear and not down ported. 4. Should be toed in towards the main listening positioning (my old Mission manual always said the imaginary line should cross just in front of the main listening position although that always seems excessive if they are far apart). 5. Speakers should be kept away from the side walls if possible. 6. Distance between speakers should always be less than the distance between the listener and the speakers otherwise a gap in the image is created. Now am I right on all the above or have I just made some of this up ? Either way I would love some help on improving the base. Do I move them closer to the rear wall? I'm tempted to move them a lot closer to the side walls (say within 20 cm of the side walls) but then wont this create a gap in the sound stage (4m apart versus 3.5 to listening position) and cause any base to boom? Now I appreciate each room is different and I need to experiment but these things are heavy and I would welcome some hints so I can at least get close initially. Now I'm sure my neighbours below me appreciate the lack of base but I would certainly appreciate a little more.