Post by: Tom Reid on June 26, 2009, 01:47:56 PM
1ea. XTi 1000
2ea. XTi 2000
2ea. XTi 4000
2ea. XS 1200
In a single amp rack.
I made 2 double edison boxes and I just run two (black) 10ga cords to each edison from a seperate circuit.
I have no problems powering my rig this way, and I have no desire to invest in nice distros. I'm a bottom feeder who has integrity, but no desire to be on the road again.
Does anyone know of a rack panel that holds a couple duplex edison boxes?
Also, am I violating some sort of code?
Pics soon, i gotta was the the popup and fill some sandbags today.
Post by: Jason Lavoie on June 26, 2009, 01:52:33 PM
middle atlantic has their rail system where you buy a blank 2U fram and load it up with whatever you want.
they do have a panel punched out for edison outlets but they say it's for "low voltage only" lol.
I would assume that to make it legal you'd have to put a box on the back of it, and then get it certified.
Jason
Post by: Bradford "BJ" James on June 26, 2009, 03:32:05 PM
BJ
Post by: Tom Reid on June 26, 2009, 04:16:56 PM
| Jason Lavoie wrote on Fri, 26 June 2009 12:52 |
http://www.middleatlantic.com/rackac/ucp/custom.htm middle atlantic has their rail system where you buy a blank 2U fram and load it up with whatever you want. they do have a panel punched out for edison outlets but they say it's for "low voltage only" lol. I would assume that to make it legal you'd have to put a box on the back of it, and then get it certified. Jason |
Thanks Jason, that's good stuff
Post by: Bruce Gering on June 27, 2009, 10:54:14 AM
Post by: Dan O. Anderson on June 27, 2009, 12:05:57 PM
Here's the actual link:
http://www.ampshop.com/distro.html
Cheers,
Dan
Post by: Bradford "BJ" James on June 27, 2009, 04:20:16 PM
Question:
Is there a more eloquent solution to this? ....like an adaptor that will feed the L14-30 from 2 edisons instead of the distro?
Thanks,
BJ
Post by: Silas Pradetto on June 27, 2009, 04:55:58 PM
| Bradford "BJ" James wrote on Sat, 27 June 2009 16:20 |
....like an adaptor that will feed the L14-30 from 2 edisons instead of the distro? Thanks, BJ |
You can make one but it's not technically legal. You need to guarantee that the hots are on different phases or the neutral will be overloaded, unless you're driving the entire rack on one circuit in which case the breaker would trip before the neutral was overloaded.
Post by: Bradford "BJ" James on June 27, 2009, 05:01:03 PM
Just wondering if there is a more acceptable way to go about this?
BJ
Post by: Jeff Wheeler on June 27, 2009, 05:11:30 PM
If the hot legs are from the same phase the neutral (which is a current-carrying conductor) will be under-sized and you will end up with a fire in a wall or conduit. The safety ground will also be under-sized and not able to fulfill its function.
If they were from different phases with home runs back to a panel, and one or both were served by GFCI breakers, I am pretty sure the breakers would perceive a ground fault and trip as soon as you started drawing current from the leg which didn't have its neutral connected.
Post by: Tom Reid on June 27, 2009, 07:40:44 PM
| Bradford "BJ" James wrote on Sat, 27 June 2009 15:20 |
I'm currently using a small distro and run a 10g cable from it to my amp rack equipped with a small panel that houses an L14-30 and splits into 2 quads for amp power. When no 220 is available I have to yank the amps out of the quads and plug into extension cords. Question: Is there a more eloquent solution to this? ....like an adaptor that will feed the L14-30 from 2 edisons instead of the distro? Thanks, BJ |
You'd have to feed the quads from the other side of th L14-30.
Best bet is take the two sends from the panel that feeds the quads and put powercons on them, put powercons on the quads. Then make a couple of edison powercon cords.
When you can go 220, the panel powercons drive the quad boxes.
When you can't go 220 the two edison cords plug into the powercon boxes.
Post by: Jeff Wheeler on June 27, 2009, 08:50:54 PM
Post by: Joe Brugnoni on June 28, 2009, 12:00:32 PM
I think I have reached the age and point that any contracts or sound I do must all be on the level I can back the truck up to and roll the rack to
Post by: Tim Padrick on July 03, 2009, 03:49:43 AM
Quad or triple or dual or single feed: http://www.padrick.net/LiveSound/BarDistro/BarDistro.htm
Accessories: http://www.padrick.net/LiveSound/ACcables/ACcables.htm
Post by: Peter Etheredge on July 03, 2009, 11:10:42 AM
I would assume this is a special outlet that allows you to put a single circuit to each plug?
I've just never seen one like this. Where did you get it/how did you do it?
-peter
Post by: Bradford "BJ" James on July 03, 2009, 11:27:09 AM
BJ
Post by: Peter Etheredge on July 03, 2009, 11:41:48 AM
Post by: Bradford "BJ" James on July 03, 2009, 12:32:17 PM
| Tim Padrick wrote on Fri, 03 July 2009 03:49 |
Dual or single feed: http://www.padrick.net/LiveSound/RackStuff/RackStuff.htm Quad or triple or dual or single feed: http://www.padrick.net/LiveSound/BarDistro/BarDistro.htm Accessories: http://www.padrick.net/LiveSound/ACcables/ACcables.htm |
There are some good idea's. Thanks.
Post by: Tom Reid on July 03, 2009, 12:55:43 PM
| Jeff Wheeler wrote on Sat, 27 June 2009 19:50 |
Tom, I am not sure if I understand your suggestion; but it seems like you describe paralleling the neutral from separate branch circuits. Again I think this won't work if the upstream breakers are GFCI. I might not understand your post. |
Extension cord A runs from wall outlet A to quad box A in bottom of amprack. Extension cord B runs from wall outlet B to quad box B in bottom of amp rack. Nothing is combined unless you speak of the amps sharing 2 circuits on the breaker panel.
I try to balance the load by putting one of each amp on each quad box.
Like I said in the GFI post, this ran last night with 0 problems on two GFCI feeds.
Post by: Tom Reid on July 14, 2009, 12:32:14 PM
I'm ordering two Motion Lab stringers today.
4 duplex edisions, a 20a powercon IN, and a 15a breaker.
I figured this would be the logical progression for the system.
Stringer 1
Xti 1000
Xti 2000
Xti 4000
XS 1200
Stringer 2
Xti 2000
Xti 4000
XS 1200
as I grow I'll add more stringers when I'm ready to make the leap to a bonafide distro.
For two years I've been running the whole rack off two 15a breakers and have (once or twice) popped breakers.
Given the power use critera for the amps it still amazes me.
Xti 4000 1/3 power 4 ohms 18.9a 1/8 power 4 ohms 9.8a
Xti 2000 1/3 power 4 ohms 12.5a 1/8 power 4 ohms 7.6a
Xti 1000 1/3 power 8 ohms 6.8a 1/8 power 8 ohms 4.6a
Xs 1200 1/3 power 8 ohms 13.5a 1/8 power 8 ohms 7.6a
Which added shows Stringer 1 at 1/8 power maxes out at 29.5a
Stringer 2 at 24.9a
And 1/3 power equals Stringer 1 51.7a, Stringer 2 43.9a.
The 15a breakers in the stringers are SPL watchdogs.
Post by: Tim Weaver on July 14, 2009, 01:27:23 PM
I have 3 quads split evenly among the 2 circuits. Both edisons are 10 gauge. I can run this rack plus FOH, two monitor amps, and backline power from this setup. This is for a typical country bar band, and my bass player runs direct, so there is no bass "rig". Two solid 20 amp circuits do fine. If the power is sketchy I need 3 circuits. I'll put backline and monitors on the other circuit.
These are the main amps. 2 PT2400's and 2 PT1800's. That's 1200 watts x4 channels and 900 watts x4 channels. The amp literature says that a 2400 at full tilt boogie will pull over 50 amps from the wall. In practice it's been just fine running all this on 2 20's.
The biggest problem I have is that these amps are so front heavy, that the sleeve keeps wanting to fall out of the case!
Post by: Tom Reid on July 14, 2009, 09:30:01 PM
I have a $120 difference in two products.
Tripp Lite makes a distro with 12ea NEMA 5-15/20R, a 20a breaker, a current indicator, and an L5-20P on a 15' cord. No switch, no MOV. Just plain distro.
http://www.shoprbc.com/ca/shop/product_details.php?pid=46131
The Motion Lab is $60 more, has a smaller breaker, less edisons.
I'm all for buying Motion Lab products, since that's rock and roll and the testimonies tell me I can't get any finer. But the $120 I save on a pair of devices can go for the fancy panel I need, all the cool plugs and jacks, and gas to go parts chasing.
The ammeter is a bonus.
Post by: Tim Padrick on July 15, 2009, 02:45:24 AM
| Tom Reid wrote on Tue, 14 July 2009 20:30 |
So I got quotes back today and now I'm confused. I have a $120 difference in two products. Tripp Lite makes a distro with 12ea NEMA 5-15/20R, a 20a breaker, a current indicator, and an L5-20P on a 15' cord. No switch, no MOV. Just plain distro. http://www.shoprbc.com/ca/shop/product_details.php?pid=46131 The Motion Lab is $60 more, has a smaller breaker, less edisons. I'm all for buying Motion Lab products, since that's rock and roll and the testimonies tell me I can't get any finer. But the $120 I save on a pair of devices can go for the fancy panel I need, all the cool plugs and jacks, and gas to go parts chasing. The ammeter is a bonus. |
http://www.provantage.com/tripp-lite-pdumh20~7TRPL1Q7.htm
Post by: Tom Reid on July 15, 2009, 11:52:52 AM
Post by: Ed Peterson on July 16, 2009, 01:37:37 AM
One circuit has PL9+FOH and the other has PL4,PL2.0HV and Dbx 260.
Post by: Tom Reid on July 16, 2009, 01:57:34 AM
http://www.dimmerrack.com/l5br.html
I think the project will evolve into two parts now.
Internal distro first, since I must clean up the way I power these amps. And the patch panel will come in phase two.
It's a big rack, I think it's worth 3 L5-30s and 3 30a breakers.
Yeah it should feed FOH too (but shouldn't this come from here anyway?).
Post by: Tim Weaver on July 16, 2009, 04:16:21 PM
| Tom Reid wrote on Thu, 16 July 2009 00:57 |
It's a big rack, I think it's worth 3 L5-30s and 3 30a breakers. Yeah it should feed FOH too (but shouldn't this come from here anyway?). |
Yes. In fact you should power everything from there. Backline included. A single 20 will suffice for backline. Even if you run into full marshall stacks, and twin SVT rigs.
Don't forget to plan for extra circuit's for upgrades down the road. You might want delay stacks, or a monitor world later on...
Post by: Tom Reid on July 18, 2009, 02:15:57 PM
Post by: Bradford "BJ" James on July 18, 2009, 02:33:04 PM