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Junior Varsity
PA System Power - Overloading Circuits
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<blockquote data-quote="RYAN LOUDMUSIC JENKINS" data-source="post: 59956" data-attributes="member: 70"><p>Re: PA System Power - Overloading Circuits</p><p></p><p>You can run a pretty decent setup on a single 20 amp circuit but any time you can split it to two circuits will be better.</p><p></p><p>Want to talk about real world measured experience, I ran a large rig a couple months ago with 8 X 3-Way tops, 16 X 2X18" subs plus 2 single 18"s and 2 12" tops as texas headphones. I was running single phase and if my memory serves me I think I was at ~50 amps on one leg and 45 on the other. This was with 6 Camco Vortex 6 amps, 3 QSC PL380s, 4 TCS TA2400, 3 Mackie 1400i amps. And this was for an Electronic Dance Music Concert with a very high profile headliner.</p><p></p><p>We just did a show last weekend with 12 3-Way Line array boxes, 4 2X12" subs, 18 2X18" subs, 4-way sidefills, and 10 wedge mixes. We were three phase and were pushing 65 amps on two of the legs and 35 on the 3rd leg. We had approximately 40 amplifiers in use on that show with a very high profile EDM DJ as the headline and about 12,000 people in front of the stage. That is a ton of gear on the equivelant of nine 20 amp circuits.</p><p></p><p>Even though the amplifier manufacturers will give you 1/8 and 1/3 power current draw figures, I highly doubt you'll ever get close to those figures in real world use unless you are just being plain stupid and destroying your gear.</p><p></p><p>I don't really think you need all the power of a MA9000i for the little system you are considering but you might want to look at a pair of Itech5000hds or a couple used Itech4000s and you would be good to go with plenty of horsepower, plenty of DSP and a system that will be very efficient with wall power.</p></blockquote><p></p>
[QUOTE="RYAN LOUDMUSIC JENKINS, post: 59956, member: 70"] Re: PA System Power - Overloading Circuits You can run a pretty decent setup on a single 20 amp circuit but any time you can split it to two circuits will be better. Want to talk about real world measured experience, I ran a large rig a couple months ago with 8 X 3-Way tops, 16 X 2X18" subs plus 2 single 18"s and 2 12" tops as texas headphones. I was running single phase and if my memory serves me I think I was at ~50 amps on one leg and 45 on the other. This was with 6 Camco Vortex 6 amps, 3 QSC PL380s, 4 TCS TA2400, 3 Mackie 1400i amps. And this was for an Electronic Dance Music Concert with a very high profile headliner. We just did a show last weekend with 12 3-Way Line array boxes, 4 2X12" subs, 18 2X18" subs, 4-way sidefills, and 10 wedge mixes. We were three phase and were pushing 65 amps on two of the legs and 35 on the 3rd leg. We had approximately 40 amplifiers in use on that show with a very high profile EDM DJ as the headline and about 12,000 people in front of the stage. That is a ton of gear on the equivelant of nine 20 amp circuits. Even though the amplifier manufacturers will give you 1/8 and 1/3 power current draw figures, I highly doubt you'll ever get close to those figures in real world use unless you are just being plain stupid and destroying your gear. I don't really think you need all the power of a MA9000i for the little system you are considering but you might want to look at a pair of Itech5000hds or a couple used Itech4000s and you would be good to go with plenty of horsepower, plenty of DSP and a system that will be very efficient with wall power. [/QUOTE]
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