Consumption Survey - Page 3

 



That's about the gist of it. Try installing the bridge mono option and then
shove that into a 4 ohm load. Then picture a couple of EIA racks FILLED with
them and Phase Linear D500s. Start to become clear now?

They don't call me Bass Pig for nothin' you know. :-)


--
Take care,

Mark & Mary Ann Weiss

VIDEO PRODUCTION . FILM SCANNING . DVD MASTERING . AUDIO RESTORATION
Hear my Kurzweil Creations at: http://www.dv-clips.com/theater.htm
Business sites at:
www.dv-clips.com
www.mwcomms.com
www.adventuresinanimemusic.com
-

 



It started out as a project some 28 years ago, and grew and grew into
several racks filled with super power amps. We're talking "California Jam"
levels, but all crammed into a 1000 sq ft studio in the cellar. Luckily, we
have no neighbors around for about a mile. But yes, you can hear the bass
(some even think you can feel it in the ground) from 3-4 miles away. The
system produces a little over 10kW of continuous power output. Each
amplifier is producing 270 volts peak to peak across 4-ohm voice coil
connections at the subwoofers.
When it's running, it draws a couple of kilowatts just at idle. The max
current draw is dependant on program material and volume setting, but at
excessive levels, the current draw peaks at 140A. Even grid power sags to 90
V AC. But when you figure you've got 25 amperes at 94 V RMS going to each of
fourteen subwoofers, that power has to come from somewhere!


--
Take care,

Mark & Mary Ann Weiss

VIDEO PRODUCTION • FILM SCANNING • DVD MASTERING • AUDIO RESTORATION
Hear my Kurzweil Creations at: http://www.dv-clips.com/theater.htm
Business sites at:
www.dv-clips.com
www.mwcomms.com
www.adventuresinanimemusic.com
-

 

Ok, you have convinced me - though I note it is the peak... but still!

I guess you definitely ARE stuck with either the grid or a very large
generator - in which case there is not much point in using anything
else.

I went outside tonight and had a listen.
I couldn't hear anything or feel the ground moving.
But then, I am in New Zealand!!

Eric

(ps -I'm into amateur radio and I just wondered what is the furthest
anyone has ever "communicated" using sound power alone - unless you
count Krakatoa as communication!!)





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Eric Sears wrote:
...

Whales, dolphins and elephants all use sound to communicate over
fairly long distance. Underwater phones used for submersibles often
use sound and, of course, there are the old fashioned "talking" drums.
It's even been suggested that the Mayans built structures to focus
sound waves to facilitate very long distance communication between
cities.

Anthony

 

 " california jam levels"  "you can feel it in the ground 3-4 miles
away"  yea right BS. 1/10th that power would produce unsafe Db levels in
1000 sq ft.  I run one Haffler 500 with 4 Urei 809 in 600sq with12 ft
ceiling and thats loud. Post a Db level .