Power Cords
 

In article ,
tony sayer wrote:
So how does a kettle get on then pulling the power it takes?, and I've
never had a problem with an actual kettle connector....
--

Of course a kettle uses a different connector - hot style.

--
*Failure is not an option. It's bundled with your software.

Dave Plowman London SW
To e-mail, change noise into sound.

Power Cords
 

"Nick Gorham" wrote in message
...
Trevor Wilson wrote:
wrote in message
ups.com...

Hi,

How important is the quality of power cords in a high end system?


**Not at all.


Does it really make a difference in sound?


**Nope. I prove this regularly to people who are deluded into thinking
that it makes a difference. Follow my logic:

I use an amplifier which has no speaker relay protection systems.
Therefore, when it is unplugged, it can still deliver power to the
speakers, for as long as the main capacitor banks can supply it. The main
filter caps total 250,000uF. This means the amplifier can deliver a
handful of Watts for several seconds. Plugging and unplugging the amp
from the 240VAC mains supply is inaudible to all listeners. Therefore,
there can never be any difference between power cords.



Ahh, thats because your capacitors are already filled from the corrupted
supply :-)

--
Nick
Corrupted mains supply does not equal corrupted audio delivery - as long as
the reservoir cap/s has/ve more reserve energy joules than demanded by
programme material dissipating into load.

Power Cords
 

In article ,
Mark Tranchant wrote:
I disagree. Let's take a 2kW pro amp as an example. That will be drawing
peaks of close to 13A when run at full power.

Then an IEC connector isn't really suitable. The maximum they can handle
is 10 amps - some 6. Something like the mains version of the Speakon would
be more like it.

But most of the large PA rigs I've seen use those industrial 16 amp types.

--
*I can see your point, but I still think you're full of ****.

Dave Plowman London SW
To e-mail, change noise into sound.

Power Cords
 

"Dave Plowman (News)" wrote in message
...
In article ,
tony sayer wrote:
So how does a kettle get on then pulling the power it takes?, and I've
never had a problem with an actual kettle connector....
--

Of course a kettle uses a different connector - hot style.

--
*Failure is not an option. It's bundled with your software.

Dave Plowman London SW
To e-mail, change noise into sound.

Many years ago, the old Swan kettles were fed from a push-in, chunky, round
bakelite 3-pin socket... that would get expelled if/when the fail-safe
cut-out prod activated, usually after overheating due to a lack of water.

Those kettles consumed 2.0kW to 2.8kW. DAK what those connectors were max
rated in Amps?

Power Cords
 

Jim Gregory wrote:
"Nick Gorham" wrote in message
...

Trevor Wilson wrote:

wrote in message
groups.com...


Hi,

How important is the quality of power cords in a high end system?


**Not at all.



Does it really make a difference in sound?


**Nope. I prove this regularly to people who are deluded into thinking
that it makes a difference. Follow my logic:

I use an amplifier which has no speaker relay protection systems.
Therefore, when it is unplugged, it can still deliver power to the
speakers, for as long as the main capacitor banks can supply it. The main
filter caps total 250,000uF. This means the amplifier can deliver a
handful of Watts for several seconds. Plugging and unplugging the amp
from the 240VAC mains supply is inaudible to all listeners. Therefore,
there can never be any difference between power cords.



Ahh, thats because your capacitors are already filled from the corrupted
supply :-)

--
Nick

Corrupted mains supply does not equal corrupted audio delivery - as long as
the reservoir cap/s has/ve more reserve energy joules than demanded by
programme material dissipating into load.



I take it you didn't see the smilie then?

--
Nick

Power Cords
 

"Nick Gorham" wrote in message
...
Jim Gregory wrote:
"Nick Gorham" wrote in message
...

Trevor Wilson wrote:

wrote in message
egroups.com...


Hi,

How important is the quality of power cords in a high end system?


**Not at all.



Does it really make a difference in sound?


**Nope. I prove this regularly to people who are deluded into thinking
that it makes a difference. Follow my logic:

I use an amplifier which has no speaker relay protection systems.
Therefore, when it is unplugged, it can still deliver power to the
speakers, for as long as the main capacitor banks can supply it. The
main filter caps total 250,000uF. This means the amplifier can deliver a
handful of Watts for several seconds. Plugging and unplugging the amp
from the 240VAC mains supply is inaudible to all listeners. Therefore,
there can never be any difference between power cords.



Ahh, thats because your capacitors are already filled from the corrupted
supply :-)

--
Nick

Corrupted mains supply does not equal corrupted audio delivery - as long
as the reservoir cap/s has/ve more reserve energy joules than demanded by
programme material dissipating into load.

I take it you didn't see the smilie then?

--
Nick
Oops, sorry, now I have :-|

Power Cords
 

"Luke Siemaszko" wrote in
message


A pro amplifier designer of my acquaintance told me that
he hated IEC power inlets for amplifiers because he had
measured up to 7V drop across them in test.

Anyone else agree / disagree ?

I'm sure its happened with some combination of
inadequate/broken equipment and exceptional stress.

I've seen wall outlets cause signficant voltage drops, as
well.

The logical error is pretty obvious - few if any of us have
stopped riding in cars because one had an accident one day
not too long ago.

Another factor to consider - power amp designers tend to
spend a lot of time watching power amps perform an unnatural
act - deliver full power for an extended period of time. In
actual use, playing music that is unclipped, power amps on
the average draw only a fraction of their full power.

Most demands for full power while playing music are so short
that they have relatively small effects on the power that is
drawn from the power line. I

OW just because a power amp delivers max power for a loud
passage does not mean that maximum power was drawn from the
power line. Most of those transient needs are satisfied by
the power supply capacitors, not the power plug.

Power Cords
 

"Dave Plowman (News)" wrote in message
...
In article ,
tony sayer wrote:
So how does a kettle get on then pulling the power it takes?, and
I've
never had a problem with an actual kettle connector....
--

Of course a kettle uses a different connector - hot style.

--
Come on DP - the only difference with hot stayle is the grove on the
bottom of the moulding.

If 7V was being dropped across a connector surely it would get
somewhat hot - and stop calling me Surely.


--
Woody

harrogate2 at ntlworld dot com

Power Cords
 

tony sayer wrote:
In article , Trevor Wilson trevor@SPAMB
LOCKrageaudio.com.au writes

"Luke Siemaszko" wrote in message
...


wrote:


Hi,

How important is the quality of power cords in a high end system?
Does it really make a difference in sound?

Thanks,

Vasilis


Slightly off topic:

A pro amplifier designer of my acquaintance told me that he hated IEC
power inlets for amplifiers because he had measured up to 7V drop across
them in test.

Anyone else agree / disagree ?

**That is certainly possible, if:

* The amplifier is consuming huge amounts of power.
* The IEC connectors are of very poor quality.
* The IEC connectors are very old/worn/corroded.



So how does a kettle get on then pulling the power it takes?, and I've
never had a problem with an actual kettle connector....

Kettle draws loads of power
some is wasted in voltage drop over crap connector
connector gets slightly warm
you don't notice
life continues

there aren't (as far as I know) hordes of kettle enthusiats eager to
squeeze every last drop of performance from their kettles. Amplfifiers,
thoough, operate in a different environemnt to kettles.....

Power Cords
 

Trevor Wilson wrote:
I use an amplifier which has no speaker relay protection systems. Therefore,
when it is unplugged, it can still deliver power to the speakers, for as
long as the main capacitor banks can supply it. The main filter caps total
250,000uF. This means the amplifier can deliver a handful of Watts for
several seconds. Plugging and unplugging the amp from the 240VAC mains
supply is inaudible to all listeners. Therefore, there can never be any
difference between power cords.

Is there not another angle to look at (says he throwing fuel on the
cynical fire...) and that is when the mains power supply is noisey.
While I can appreciate a mains cable ain't going to make any difference
with a clean power supply, to what extent do these noise reducing mains
cables with their ferrite rings and platted cables reduce an
interference that may be inherent in the supply? Of course an amp that
removes all such interference before the amp power lines will not show
any difference, but will a hifi component with a less than optimally
design power supply benefit from a "noise reducing" cable?