Subject: Re: good sound system From: Peter Lennox <P.Lennox@xxxxxxxx> Date: Wed, 14 Jun 2006 11:06:25 +0100For multipurpose and intelligibility issues, suggest you consider "layered sound" approach. This uses conventional pistonic drivers, but with added distributed mode loudspeakers (DMLs) - flat panel speakers. As the latter don't behave like point sources (because they're not), they don't fall off according to inverse square law. the net result is better intelligibility over more of the venue. Fane loudspeakers (UK) are interested in this concept, and have a range of flat-panels in addition to their conventional designs. Working with such a company, you may get them to design and spec your setup. The key thing is precision in installation. using more speakers (decoded to appropriately) also avoids exciting room-modes intolerably, so that volume levels can be higher without annoyance. It further tames the potential problems of feedback, where multiple mics are in use. regards ppl Dr. Peter Lennox S.P.A.R.G. Signal Processing Applications Research Group University of Derby http://sparg.derby.ac.uk Int. tel: 1775 >>> karla <kmmadrid@xxxxxxxx> 14/06/2006 10:36 >>> dear list, I have been asked to give the specifications for a good sound system (whole package) to be used in a new lecture hall designed for seminars and conferences. can you recommend some really good equipment? our target budget is around $12,500. i will really appreciate your suggestions. thank you very much! respectfully, karla madrid --- Karla M. Madrid Department of Electrical and Electronics Engineering Mindanao State University Marawi City kmmadrid@xxxxxxxx