TIP: Click on subject to list as thread! ANSI
echo: pro_audio
to: TERRY SMITH
from: LASZLO SOKOLAI
date: 1996-01-28 05:59:00
subject: Re: Mic Spliters

TS > LS> Excuse me?  consumer gear?  My mixer was not made to take multi
TS > LS> crosssovers at 20kohms balanced.  i hit the limit at
TS > LS> 18 crossovers on the mixer main outs which makes a
TS > LS> 600 ohm impedance.  Each of my amps at 10 kohms
TS > LS> unbalanced and 20 kohms balanced, and i hit the limit
TS > LS> again at 18 amplifiers and 600 ohms. Sometimes i like
TS > Why would you use more than 2 crossovers, or run a system
TS > that large without a limiter for protection?
TS > Do you understand how a 10 k unbalanced load on a single
TS > ended line driver has the same loading effect as a 20 K
TS > balanced load on an equivalent balanced active line driver?
TS > Terry
Well i run multi-crossovers for alot of reasons, when i had all the amps 
patched into one crossover, when one amp clipped, the other amps emitted a 
slight popping noise which was enough to get through the subsonic filter and 
cause the cones on the speakers to slam into the front steel grilles on my 
yamaha 4115-II's.  With a balanced line i can push the mixer higher because i 
lifted the negative on the balanced xlr lines.  Makes the mixer go higher, 
and the amps clip exactly when i push or boost another 3db of say 40hz to 110 
hz when the mixer is 100 percent on the sliders (0db source fader, 0db master 
feed fader.  I don't use limiters or compressors yet and i have not lost a 
speaker in 3 years since i bought these original amps and cabinets.  The 
cleanest damn amplifier/speakers setup that i've ever heard from trapeziodal 
cabinet setups.  The highs are sweet and not grainy, and the lows and mids 
are all there.  The system sounds very good when the eq's are flat or 
bypassed.  I like this setup of mine because the voice coils do not get hot 
on these woofers unless i go over 125 percent of it's wattage ratings.  Each 
woofer in my dual 15 cabinets can absorb 500 watts of continuous music, and 
that includes the food for woofers cd's which i used to prove that other 
systems setup in clubs are not inferior to my setup after they managed to 
light up (catch on fire) a few carver amps running at only 4 ohms per 
channel.  If i need a slight boost because of the amp load, i simply go to 
the amp rack and plug in a null mono 1/4 adapter into the amps, this shorts 
the ring to sleeve, and the amps really pick up the volume without the fader 
being touched.
Laszlo Sokolai
Team ANTI-Windows95/PRO-OS2/PRO-Unix
lsokolai@bbs42.com
--- BBS 42
---------------
* Origin: BBS 42 Node 3 7.5 gigs (1:221/605)

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