TS > LS> shows.  I am currently using 6 amplifiers for my road
TS > LS> shows with 12 on reserve for bi and tri-amping the
TS > LS> speakers.  I noticed that the sound quality from the
TS > LS> mixer degrades when using unbalanced (20kohm per
TS > LS> amplifier running my 18 amps and 36 cabinets), and the
TS > LS> sound gets more better running balanced (30kohms per
TS > LS> amplifier running my 18 amps and 36 cabinets).  I
TS > LS> guess it is the load bearing on the mixer.
TS > Why would your amplifiers put any load on your mixer
TS > outputs?  I'd think it would all be on either crossover
TS > outputs or limiters.
TS > If a 1K load degrades your sound quality, it's consumer and
TS > not pro gear that wou're running.  Balanced or unbalanced
TS > only matter as to noise rejection, and generally result in
TS > the same loading per line driver in opamp based designs.
Excuse me?  consumer gear?  My mixer was not made to take multi crosssovers 
at 20kohms balanced.  i hit the limit at 18 crossovers on the mixer main outs 
which makes a 600 ohm impedance.  Each of my amps at 10 kohms unbalanced and 
20 kohms balanced, and i hit the limit again at 18 amplifiers and 600 ohms. 
Sometimes i like to run my subwoofers with their factory wound 12 guage 
passive coils and mount the 16 subwoofer cabinets in a way to prevent major 
phase shift from the high pass cabinets.  And mostly when i use the passive 
coils, i run my amps full range from the amps (amplifiers are more prone to 
clipping when running full range instead of a active subwoofer-only feed to 
the amp).  My mixer for most my road shows is a Numark DJ mixer, it can drive 
output loads down to 300 ohms, and when i run the large shows, i run a 64 
channel crest mixer in its full loaded 64/8 config.  Every damn jack on the 
100 and 200 foot snake rolls (12 snakes) is taken up.
Laszlo Sokolai
Team ANTI-Windows95/PRO-OS2/PRO-Unix
lsokolai@bbs42.com
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