How many amps would this draw?

[Floydrose]

Hi everyone first post here as I need some advice and can't work it out.
I have only 1 double socket by a new desk area, I will have around 7 appliances on an extension cable but never used at the same time.
I can calculate how much will be being used at maximum comes in around 5amps, apart from one appliance.
It's a guitar amp processor with the specs below.
How do I use this data to calculate how many amps the powerhead/powerRack will use?
Thanks for any help

 

[telectrix]

add them up 10 +0.5 +0.5 = 11A

 

[Floydrose]

add them up 10 +0.5 +0.5 = 11A

It's just the highlighted section as the others are different units.
So if it would draw 10 amps, I can't have much more on at the same time for the double socket?

 

[telectrix]

think the 10A is a max. value. a double socket is rated at 20A for both outlets together. why not add (or get local electrician to add) another double socket next to existing.

 

[loz2754]

The Kemper powerhead is rated at 600 Watts.
So at 190 volts it would draw 3.15 amps. At 230 volts it would draw 2.6 amps.
That's if you were running it at full volume.

 

[Floydrose]

think the 10A is a max. value. a double socket is rated at 20A for both outlets together.

Ok, sounds good. I'll be safe if I keep this unit on the right and extension with everything else (max 5 amps) on the left of socket?
Thank you very much for your help

 

[Floydrose]

The Kemper powerhead is rated at 600 Watts.
So at 190 volts it would draw 3.15 amps. At 230 volts it would draw 2.6 amps.
That's if you were running it at full volume.

Even better! Thanks

 

[Lucien Nunes]

If it is rated 10A max with voltages in the range 100-125 or 190-245, the maximum power input will be 10 x 100 = 1000W. At 230V this would be 1000 / 230 = 4.3A

But an audio power amplifier only normally uses a fraction of its maximum rated power, except for momentary peaks which have little impact on the electrical supply rating. I would expect it will idle along at 1A or so, occasionally peaking at a couple of amps.

The Kemper powerhead is rated at 600 Watts.
So at 190 volts it would draw 3.15 amps. At 230 volts it would draw 2.6 amps.

The 600W is the output power, so it will require more input than 600W. I suspect it's a class D (switching) amp so maybe 700W input, which allowing for power factor might be 800VA, or a bit over 3A at 230V. If it were a linear amp it would require more. The class A amp I am listening to at the moment takes 150W from the mains to produce 20W of audio.

But, there are lies, damn lies and power ratings. It claims 600W RMS into 8Ω speaker load. That's sqrt (600/8) = 8.7A supposed to come out of the 1/4" output jack. That would melt most jacks if you played a 600W continuous tone through them. Thankfully most music requires only 1% or so of rated power except for the peaks.

So yeah, an amp, peaking at a couple of amps. Amp as in Ampère, not amplifier.

 

[loz2754]

If it is rated 10A max with voltages in the range 100-125 or 190-245, the maximum power input will be 10 x 100 = 1000W. At 230V this would be 1000 / 230 = 4.3A

But an audio power amplifier only normally uses a fraction of its maximum rated power, except for momentary peaks which have little impact on the electrical supply rating. I would expect it will idle along at 1A or so, occasionally peaking at a couple of amps.


The 600W is the output power, so it will require more input than 600W. I suspect it's a class D (switching) amp so maybe 700W input, which allowing for power factor might be 800VA, or a bit over 3A at 230V. If it were a linear amp it would require more. The class A amp I am listening to at the moment takes 150W from the mains to produce 20W of audio.

But, there are lies, damn lies and power ratings. It claims 600W RMS into 8Ω speaker load. That's sqrt (600/8) = 8.7A supposed to come out of the 1/4" output jack. That would melt most jacks if you played a 600W continuous tone through them. Thankfully most music requires only 1% or so of rated power except for the peaks.

So yeah, an amp, peaking at a couple of amps. Amp as in Ampère, not amplifier.

I knew you'd be along to amplify the detail!

 

[Lucien Nunes]

I like to keep the forum's signal-to-noise ratio as high as possible and minimise distortion. Some might see my constant impedance as a damping factor, but apart from occasional intermodulation I think between us we achieve impressively high fidelity.

 

[littlespark]

Gets out the dictionary.......

 

[Floydrose]

If it is rated 10A max with voltages in the range 100-125 or 190-245, the maximum power input will be 10 x 100 = 1000W. At 230V this would be 1000 / 230 = 4.3A

But an audio power amplifier only normally uses a fraction of its maximum rated power, except for momentary peaks which have little impact on the electrical supply rating. I would expect it will idle along at 1A or so, occasionally peaking at a couple of amps.


The 600W is the output power, so it will require more input than 600W. I suspect it's a class D (switching) amp so maybe 700W input, which allowing for power factor might be 800VA, or a bit over 3A at 230V. If it were a linear amp it would require more. The class A amp I am listening to at the moment takes 150W from the mains to produce 20W of audio.

But, there are lies, damn lies and power ratings. It claims 600W RMS into 8Ω speaker load. That's sqrt (600/8) = 8.7A supposed to come out of the 1/4" output jack. That would melt most jacks if you played a 600W continuous tone through them. Thankfully most music requires only 1% or so of rated power except for the peaks.

So yeah, an amp, peaking at a couple of amps. Amp as in Ampère, not amplifier.

Very interesting, and shows that I really don't know anything about electrics! I can feel a trip to the book shop coming on ?
Thanks for the info

 

[telectrix]

I like to keep the forum's signal-to-noise ratio as high as possible and minimise distortion. Some might see my constant impedance as a damping factor, but apart from occasional intermodulation I think between us we achieve impressively high fidelity.

VHF or UHF?

 

[7029 dave]

Gets out the dictionary.......

Swallowed one.

 

[pc1966]

But, there are lies, damn lies and power ratings.

Never a truer word said!

 

[Deleted account]

Very interesting, and shows that I really don't know anything about electrics! I can feel a trip to the book shop coming on ?
Thanks for the info

Sometimes I feel the same.

 

[pc1966]

There is always something new (or old) to learn! The challenge often is finding a good book and the time to read & digest it.

Metaphorically at least, would give you indigestion I suspect.

 

[Lucien Nunes]

Very interesting, and shows that I really don't know anything about electrics!

I have the unfair advantage of having been variously an electrician specialising in entertainment and performance venues, live sound engineer, designer of analogue electronics, and AV installer, over the years. Of all the people on the forum, I am one of the more likely contenders for lurking behind an amplifier rack with an ammeter. Or behind an ammeter rack with an amplifier. I should have made a career out of just lurking behind equipment generally.