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moving heads


timtheenchanteruk

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We are looking to hire a couple of movers for our next production, slight snag is we have a lack of power in the hall we use.

 

What we want is:

 

Gobo/colour independant.

rotating gobo would be nice

prism would be nice, but not high on the list on needs.

usual pan/tilt

iris if possible.

 

Who makes a low-power unit with this spec?

 

I should be finding out exactly what power we have spare later today, but If I remember correctly, a couple of miniscans is about the limit on the spare.

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All the bits inside tend to be insignificant against the lamp draw & inefficiencies don't vary much either.

 

So it all comes down to lamp power/type and optical efficiency. Clay Paky often come out on top on the latter & in my experience the Miniscan HPE's have suprising brightness with the linear 300W lamp. If you know they can run ok then I would be tempted to stay with them - just make sure they are immaculately clean with new lamps. If there is option the HPE3's have iris.

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High end systems spot 250's or martin mac 250's will do the job and have all of the requirements listed below.

 

 

We are looking to hire a couple of movers for our next production, slight snag is we have a lack of power in the hall we use.

 

What we want is:

 

Gobo/colour independant.

rotating gobo would be nice

prism would be nice, but not high on the list on needs.

usual pan/tilt

iris if possible.

 

Who makes a low-power unit with this spec?

 

I should be finding out exactly what power we have spare later today, but If I remember correctly, a couple of miniscans is about the limit on the spare.

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High end systems spot 250's or martin mac 250's will do the job and have all of the requirements listed below.

 

Except the iris on the Mac 250 - lower powered fixtures often miss this one off the facility list...!

Not sure on the HES 250's...

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The Mac 250 Entour & Mac 250 Krypton both have a motorised iris as does the HES spot 250.

 

 

High end systems spot 250's or martin mac 250's will do the job and have all of the requirements listed below.

 

Except the iris on the Mac 250 - lower powered fixtures often miss this one off the facility list...!

Not sure on the HES 250's...

 

 

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May be slightly out of the power range, but Vari*Lite 6C+'s with 400w lamps are extremely pokey, with two independent gobo wheels, one rotating. Single colour wheel, iris, zoom and focus (and probably others that I cant remember).

 

I would also recommend if you get these that you run them with DMX power packs, as each one can be plugged in separately meaning spreading a load over various sockets its easy.

 

Lastly because they are Vari*Lite 300 series, (the updated version of the Vari*Lite 6) they are extremely light!

 

Jack

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Must be a mis-print on the spec sheets I have then. The HES spot 250 definately has an iris, if this helps.

Probably not. It's more probable that your mixed it up the iris gobos that ship with the Entour as optional replacement for some of the fixed gobos. I did some field testing with the fixtures before official sales release and there were never specs about a real iris.

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A slightly simplified explanation ... Older VLs (Series 200, Series 300) don't have all the gubbins built into the base like the newer ones - they need separate power/data distribution via Smart Repeaters. In the case of discharge-lamped fixtures, the lamp power is derived from remotely-located power supplies, which are then combined with data and fed to the heads via a single cable. The DMX power packs that Jack's talking about are the single-head versions of these power supplies.
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A slightly simplified explanation ... Older VLs (Series 200, Series 300) don't have all the gubbins built into the base like the newer ones - they need separate power/data distribution via Smart Repeaters. In the case of discharge-lamped fixtures, the lamp power is derived from remotely-located power supplies, which are then combined with data and fed to the heads via a single cable. The DMX power packs that Jack's talking about are the single-head versions of these power supplies.

 

 

Exactly that! The advantage of having power packs is that instead of needing a large 3 phase input as you do in a smart repeater, you can run multiple power packs on a standard 13a supply (depending on the fixtures obviously).

 

The power packs / smart repeater also address the fixtures for DMX. If we are using series 200 / 300 fixtures in a venue where the tops of bars cannot be seen (Proscenium arch venues for example) we usually mount the moving head on the underside of the bar and the power back upside down directly on top of the bar, this means that the tails from the heads will plug into the power packs with no extensions needed (and saves us running lots of Vari*Lite control cable down the bar which can be an absolute a*se).

 

HTH,

Jack

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