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Driverack PA + with delay speakers

dynoxdynox Posts: 4
edited February 2010 in PA General Discussion
Hi All,

I'm new here, i want to ask : can i configure my driverack PA+ for 2 way system for FOH and 2 stereo delay speakers?

Please Advice

Comments

  • GadgetGadget Posts: 4,915
    Unless your not giving us all the details (and you've given us exactly 1) the answer is yes, and no...to give you the whole answer we need ALL the system and purpose details...
    What system (all speakers, amps, processing, gear)
    what room (capacity, dimensions, room acoustics... etc)
    what purpose ( live sound, DJ / KJ corporate...?)

    Part of the answer is the DRPA doesn't have enough delay to be of much value... less than 10 feet...the rest is up to you...
    Gadget
  • dynoxdynox Posts: 4
    This system is for a church and the room don't get any acoustic treatment because of budget issue, 16 meters X 30 meters

    I plan to use JBL EON 515 for FOH and EON518s for subwoofer, i also plan to put EON510 about 10-12 meters from FOH, so i will need to delay the speakers from FOH, is that correct?

    Please Advice
  • GadgetGadget Posts: 4,915
    i also plan to put EON510 about 10-12 meters from FOH, so i will need to delay the speakers from FOH, is that correct?
    That would be a good idea, (to delay the fills) but I think that is a VERY poor choice of speakers...First of all you will need to run power AND a mic cable to each flown speaker, Second that speaker has a 100 degree horizontal dispersion. That means it will be nearly impossible to get the sound on the people and off the walls. (VERY BAD in live spaces without treatment) The DRPA has no where near enough delay to be of any use, it's delays are meant as alignment delay for active speaker control, not delay lines. Another BIG no no is that the eons are not rigged for flying, and if they fall and someone gets hurt....UFDA can you say lawsuit city!

    Is there any way to get a center cluster in that church? that would give you the best results I figure, and a speaker like the D.A.S. RF 1264 (60x40 degree coverage would provide 120 degree coverage (2 speakers) and keep the sound off the walls better, have far better sound and projection (a 15 " woofer is NOT a very vocal friendly driver) Even if you can't center cluster (which offers the best intelligibility because there is no overlapping horn patterns to cause cancellations and modes) the 1264's are still a far better choice because they are set up to fly and will again offer the ability to keep the message on the people and off the walls. (and they are VERY reasonably priced)

    Is this a "rock and roll" church? with worship band and all? I assume so since you are specing a sub?

    The delay speakers could then be something like the Community CPL 24 series, small, light weight with mounting brackets (and come in black or white) and I have had really good luck with them in church spaces.... and they are CHEAP! ( if it is just a vocal re-enforcement system you could use the CPL's for the whole job. I know I did a 6 speaker install in the Catholic Church next door and they LOVE the system, and it's been in there for the last 6 years!

    You could then get an amp that has delay DSP built in. Peavey just came out with a new series of amps that are super light weight, have built in DSP AND I believe 5 year warranty, and they are CHEAP! Like WELL under $500 for a 3000 watt amp with DSP built in! WIN WIN!

    Sorry to be the bearer of bad tidings but you would have NOTHING but problems with that JBL system! Here is a link to the cheaper route that will make you a hero at the church...

    http://www.northernsound.net/Sales/spea ... frame.html scroll down to the RF1264

    http://www.northernsound.net/Sales/spea ... frame.html scroll down to the CPL 23/27

    http://www.northernsound.net/Sales/catagories.html scroll down to the IPR series amps

    Crown also makes the XTi series amps with DSP, but are more expensive.

    I hope your not dealing with brand snobs in your church because this setup would give you FAR better sound and I believe come in cheaper! win win!

    Be well, good luck!
    Gagdet
  • dynoxdynox Posts: 4
    Thanks Bro... that's a very usefull idea :)
  • GadgetGadget Posts: 4,915
    You are entirely welcome, Just hate to see you put yourself and others in danger, much less using the wrong speakers for the job. Looks like the Peavey amps will have 120' of delay per output...
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