I'm the worship leader, and I am looking at possible sound upgrades for next year's church budget. I am an avid DIYer, familiar with building speakers and cabs for home and car, but not live sound per se. Hoping to build cabs for a higher performance at lower cost. This means I will buy drivers and horns separately, and build appropriate enclosures.
Sanctuary is just about the worst possible design for sound. Roughly 60' octagon, that goes to a 20' apex in the center.
Currently we use 2 EV powered subs on one side of the stage, and 4 passive EV 10" 2-way cabs flown high.
Problem now is
1) no headroom at live band levels (occasionally blow tweeter diaphragm)
2) little fullness in the octave between 70Hz (fixed EV LP) and 140Hz
3) subs are too loud nearest the cabs, when mixed decent for the rest of the room
4) unequal, uneven dispersion across the entire audio spectrum
Questions regarding Subwoofers
There is loads of space above and behind the stage, where organ speakers were designed for, but never installed. This would be a horrible place for HF drivers, but at what frequency might LF drivers be OK in this position? Three or four 18" drivers could be implemented on either side, if this position could be used. IB could also be employed if that's even a good idea. If this area is completely useless, even for subs, then we're stuck with 2 sub cabinets on one side of the stage, unless we cut into the stage (which may be a possibility).
Questions regarding HF cabs
What would be a good design for wide coverage high frequencies from 100Hz and up? The pictured speaker locations are almost directly OVER the first row of seats. Very tough placement in this room!
First, I would like advice on locations and styles of cabinets, and then go into drivers in particular. Thank you!
CHAD
Sanctuary is just about the worst possible design for sound. Roughly 60' octagon, that goes to a 20' apex in the center.
Currently we use 2 EV powered subs on one side of the stage, and 4 passive EV 10" 2-way cabs flown high.
Problem now is
1) no headroom at live band levels (occasionally blow tweeter diaphragm)
2) little fullness in the octave between 70Hz (fixed EV LP) and 140Hz
3) subs are too loud nearest the cabs, when mixed decent for the rest of the room
4) unequal, uneven dispersion across the entire audio spectrum
Questions regarding Subwoofers
There is loads of space above and behind the stage, where organ speakers were designed for, but never installed. This would be a horrible place for HF drivers, but at what frequency might LF drivers be OK in this position? Three or four 18" drivers could be implemented on either side, if this position could be used. IB could also be employed if that's even a good idea. If this area is completely useless, even for subs, then we're stuck with 2 sub cabinets on one side of the stage, unless we cut into the stage (which may be a possibility).
Questions regarding HF cabs
What would be a good design for wide coverage high frequencies from 100Hz and up? The pictured speaker locations are almost directly OVER the first row of seats. Very tough placement in this room!
First, I would like advice on locations and styles of cabinets, and then go into drivers in particular. Thank you!
CHAD
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Hi,
Experiment with what you have. Move the subs to the
suggested location, they'll be fine. Move the sats
down and further back, see how you get on.
rgds, sreten.
http://www.pispeakers.com/ssdm_99.pdf
Experiment with what you have. Move the subs to the
suggested location, they'll be fine. Move the sats
down and further back, see how you get on.
rgds, sreten.
http://www.pispeakers.com/ssdm_99.pdf
And consider paying a sound professional to come in and assess your needs. he may recommend commercial brands and models, but you are not obligated to make those purchases. But you can decide to try and emulate them in DIY.
If you plan to fly any speakers, you really need to know what you are doing building the cabs. They need to be structurally sound enough to support their own weight by their frames, and have mounting points that do the same. You can't just run eye bolts through a panel of plywood. Joints in the wood can fail, and hardware can pull through the wood.
COnsider also looking in the used commercial gear market. You get a lot more product for your dollar buying used rather than new. New comes with a warranty, but a higher price.
sreten's JBL book looks good. Here is a book I often recommend for an overview.
Guide to Sound Systems for Worship: Jon F. Eiche: 9780793500291: Amazon.com: Books
If you plan to fly any speakers, you really need to know what you are doing building the cabs. They need to be structurally sound enough to support their own weight by their frames, and have mounting points that do the same. You can't just run eye bolts through a panel of plywood. Joints in the wood can fail, and hardware can pull through the wood.
COnsider also looking in the used commercial gear market. You get a lot more product for your dollar buying used rather than new. New comes with a warranty, but a higher price.
sreten's JBL book looks good. Here is a book I often recommend for an overview.
Guide to Sound Systems for Worship: Jon F. Eiche: 9780793500291: Amazon.com: Books
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