post #31 of 46
2/17/07 at 3:23am
|The graphs show considerable variety from hall to hall in bass and mid-bass response, with the halls that are regarded as desirable for orchestral performances having considerable bass to mid-bass warmth. A less desirable feature of many halls is a slight 250 Hz depression, apparently caused by absorption arising from the seating pattern. In the midrange above 250 Hz up to the 2-4 kHz region, most of the halls are essentially flat. But around 4000 Hz, and sometimes as low as 2000 Hz, virtually every hall begins a rapid roll-off at even quite close-up audience locations. By 8000 Hz, there is typically a 7 to 10 dB dropoff from midrange level. The graphs are not given beyond 8 kHz; but from theoretical considerations, the roll-off at higher frequencies would be expected to be even greater.|
Well I see this is going to resort to yet another Sennheiser veil thread, so I'm going to continue to plop this article in every veil thread!
the reason Senns have less upper midrange...symphony halls: