DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   Electrical (http://www.diychatroom.com/f18/)
-   -   URGENT:problem with power supply to amplifiers (http://www.diychatroom.com/f18/urgent-problem-power-supply-amplifiers-10883/)

mdhek001 08-20-2007 08:34 PM

URGENT:problem with power supply to amplifiers
 
I have 6 amplifiers connected in series, running at 16A continuous rating.
And I have a single electrical line of 20A@240V.
Do u guys have any idea how to fire all of them at a time.
Can I just plug in each amplifier in 6 different recepticles so that they each get 16A of current simultaneously?
Help me out guys its as important as my life!!

SecretSquirrel 08-21-2007 06:38 AM

Your description is a little confusing.

Does each individual amplifier draw 16 amps or do all 6 amplifiers collectively draw 16 amps (2.67 amps each)? And how do you know what they draw? These are 240V amplifiers... correct?

Your 20 amp circuit can safely provide 15 continous running amps according to the 25% safety factor... but you may be able to push a little more although this is a gamble.

mdhek001 08-21-2007 09:39 AM

thank you SecretSquirrel,
my amplifiers draws 16A individually. so together they might draw 6*16A
yeah you r right, i dont know that they draw 16A in continuous running. But itis written in spec sheet that they each draw 16A peak running.
In that case also what u said is correct?

SecretSquirrel 08-21-2007 09:46 AM

I think my math was bad.

16 amps * 1.25 (safety factor) = 20 amps

20 amps / 1.25 (safety factor) = 16 amps

So you should be fine running each individual amplifier on its own 20 amp circuit.

mdhek001 08-21-2007 10:00 AM

but i have only one line of 20A@ 240V
so should I provide 6 different recepticles in same line to plug each amplifer in each recepticle, will that work?

Clutchcargo 08-21-2007 10:10 AM

What type of amplifier draws 16AMPS? What are you amplifying? Is this for a residential application? Does each need 16Amps @ 240V or 120V?
If you do actually need 6 20AMP circuits, then you need 6 homeruns to the panel, each on it's own breaker. Is your panel size big enough?

SecretSquirrel 08-21-2007 10:15 AM

Quote:

Originally Posted by mdhek001 (Post 58744)
but i have only one line of 20A@ 240V
so should I provide 6 different recepticles in same line to plug each amplifer in each recepticle, will that work?

Nope! If one amplifier draws 16 amps @ 240volts then you will need 1 - 20 amp circuit per amplifier.

Now... I want to make sure I completely understand what you're doing. What kind of amplifiers are these? Could it be possible that you are refering to the "output" of each amplifier when you said 16 amps? A little more info please, like the amplifier make and model number.

skymaster 08-21-2007 12:06 PM

SS; hmmmmm seems to need a small power station here :}
Also, wouldn't he be better off wiring in parallel? Man I run my entire shop on way less power than this! TS,shaper,radial arm,drill press,band saw, hand tools etc etc

SecretSquirrel 08-21-2007 12:13 PM

Quote:

Originally Posted by skymaster (Post 58757)
SS; hmmmmm seems to need a small power station here :}
Also, wouldn't he be better off wiring in parallel? Man I run my entire shop on way less power than this! TS,shaper,radial arm,drill press,band saw, hand tools etc etc

I don't know if he's rigging up a Rolling Stones concert or playing with some Radio Shack power supplies. Until he replies back it all remains in question.

skymaster 08-21-2007 12:39 PM

ROFLMAO "Everything remains in question" hmmmmmmm mental state or lack thereof included? LOL LOL

Rze 08-21-2007 11:15 PM

Hate to be his neighbor!
 
I DJ part time and can fill a large banquest hall with much less power (1 20 amp outlet). As a matter of fact I have filled a high school football stadium with a crown amplifier and a pyramid applifyier (700 watts each) with no problem. (1 20 amp outlet) (Oh and I occasionally power a LCD projector also)

SecretSquirrel 08-22-2007 06:13 AM

Quote:

Originally Posted by mdhek001 (Post 58685)
Help me out guys its as important as my life!!

I wonder if the patient is still with us? :wheelchair:

Stubbie 08-22-2007 08:42 AM

Looks like he is gone. I'm thinking he has a few problems. A 16 amp input for an amplifier makes it a big honker as they say. I can't imagine what you would do with 6 of them. I was at a high end home the other day with a many thousand dollar home entertainment center. He had a 1400 watt amp that cost around 4 grand. So I'm not sure what's up with the op. I was waiting to see if he would reply to your inquiry about the make and model of his amplifiers..

Stubbie

darren 08-22-2007 04:35 PM

Before I was an electrician i used to do the live sound thing. I am curious myself what model his amps are. I doubt if he will need 120A of power though. Most audio for the big arena concerts run on either a 100A or a 200A service.


All times are GMT -5. The time now is 05:42 AM.


Copyright 2003-2014 Escalate Media LP. All Rights Reserved