sutlhynt

Thanks Mach for turning them around.The speaker platforms are solid brick and concrete.Total of 14 speakers in the room. Sub and rear and side surrounds not visible in these pictures. In one picture 3 speakers for centre channel visible laid flat before screen.And the turntable is a garrard 301 (1957)with SME type one arm(1959)mounted with an Ortofon spu mc 75th anniversary edition running through Ortofon verto step up trannie into a phase linear 4000 preamp. More on speakers and amps later...Any comments on the vaulted ceiling. The inverted beams forming a grid are clad with glass wool and tapestry. Floor level is split by 13". Side walls and part of front wall is similarly treated upto varying heights average 36".

Have posted pictures.Most are upside down. Don't know how to turnover around. Maybe some veteran can do this for me please.

Hello all. Posted pictures by modifying original post. For some reason quite a few are upside down and I don't know how to fix it. Maybe a veteran can help by swinging them around...

Hi Maynard. Sitting in the sweet spot with eyes closed I can pinpoint location of instruments in terms of placement (left to right), depth (back to front) and height....ooh the drummer is on a raised platform 10 feet behind the vocalist and 5 feet higher...his snare drum is dead centre perhaps in my lap and his haha is to my left and look at that spectacular roll panning snare to floor tom going left to right and he hits a crash higher up to the right and then one to his left. I am obviously sitting on the drum throne...and there is the sax player left of centre ahead of the piano with the trumpet right of centre and the guitarist just behind him but further right. Need I go on? That was last night listening to "The eternal triangle" -Igor Batman big band. So...sorry I wholeheartedly repell your hypothesis.

Hi Chris. I'm delighted to see you responded. In all honesty my post was directed to draw you out. I consider you the big daddy here. The platform is located along the 17'9" front wall and is solid concrete and brickwork. It measures 28"x28". On the back wall are (real hardwood) wooden cabinets flanking on either side a heavy hardwood panel (solitary) door. The side walls have glass wool sheet panels covered with heavy tapestry upto a height of 3'9" (4'9" for front half of the room- the floor is split level with a one foot step down). All four walls are double walls with a 3" air gap between a concrete outer and brickwork inner wall. The ceiling is vaulted in the sense that it has 2 fat inverted concrete beams running width wise and 2 length wise suspended 18" from the ceiling and 18" wide...all cladded with similar glass wool and tapestry dividing the ceiling into 2 grids corresponding to the split level floor dimensions. At the step down is a large equipment cabinet made of ply wood and hardwood. Thereon lies a projector projecting on a 8'6"x5'6" screen rendered on the front wall centered between speaker platform. This way line of sight is above the central equipment cabinet from recliners on the upper deck to the screen on the front wall while for 2 channel music one sits on a couch on the lower deck backrest touching the equipment cabinet. From front wall to back wall floor division is 28" platform then 10' lower deck then 28" equipment cabinet and 10'upper deck. I hope you have an accurate mental picture of the room. Take away being:The walls are partly reflective and partly absorbant. The speakers corners are lined with absorbant material to a height of 2'6" above the 28" platforms. Said lining extending from behind the speakers (4'6" upto screen) to entire side walls viz,mid range and tweeters of existing speakers are flanked by brick wall covered by a textured finish.I believe this would obviate the need for diffraction panels.I also feel that the reported imbalance between hf and lf of Khorns would be somewhat resolved due to ear position in relation to speaker height rendering solid bass. I know that a picture is worth more than words so will post some soon together with gear details. You did not respond to the 'wall of sound ' part. Oh by the way I'm in India. A lawyer by profession and an amateur musician (I play the drums). Once again regards Chris. Hope to interact with you again soon.

And the standing speakers are all toed in say 25 degrees.

Hi Schu. The wall of sound speaker set up gives me a good soundstage with height depth and spread. The short wall is 17'9" long with a 28" high and 28" deep platform running across the width. At the corners are placed three pairs of speakers while in the centre another pair is laid flat tweeters oriented outwards. My seating position is lower than midpoint of stanning speaker heights bup level with those laid flat. The height of the sound stage creates the illusion of say 5th row centre seats in a good auditorium with a 3 foot high stage and of course concert levels.

Hello all.Newbie to forum. Question 1: What say all about placement of (to be acquired) Khorns on raised platforms 28" high at corners of short wall of dedicated audio room in basement with air cavity walls (external concrete, internal brickwork) with half of total surface area of walls and ceiling treated accoustically with glass fibre sheets covered by thick tapestry. The Room measures 11'H x 17'-9"W x 25'L. Sweet spot triangulated at 12 feet but ears end up level with 12" to 15" from bottom of speakers when seated on couch. Noteworthy that said sweet spot location sounds distinctly better (more solid bass) than when I raise seating position higher by 30"(sitting temporarily on backrest of couch at said sweet spot) with existing speakers. Not stating present gear set up to keep discussion free from going on tangents. Have trawled forum but this issue has never been explored. Question 2: What say all about running a two channel set up with 'wall of speakers' i.e.like 4 pairs run through dedicated 4 amplifiers plus powered sub? Yes...WAF has no application in my man cave fortunately. The issue of multiple full range speaker pairs covering complimenting areas of audio spectrum where the sum of sound produced is gloriously full has also not been discussed in the forum.