Re: Remote Power Supply Connection

"John Byrns" <byrnsj@[EMAIL PROTECTED]
> wrote in message 
news:byrnsj-BEF3EF.14095914052008@[EMAIL PROTECTED]
> In article <p6GWj.942$_03.344@[EMAIL PROTECTED]
>,
> "Iain Churches" <IainNG@[EMAIL PROTECTED]
> wrote:
>
>> > Put simply the use of an outboard power supply chassis is the OPTIMUM

>> > way
>> > to achieve the BEST possible performance.
>>
>> Agreed.  My 50 watt stereo amp is built that way.
>> The psu weighs 40kgs. The noise floor is -106dB
>
> What is the reference level for that -106 dB noise floor?

Full power 50W "A" weighted.
I think that quoting SNR as a ratio is a bit misleading.
I should have written 100µV.

Many people seem to measure SNR ref 1W these days,
which gives a better perspective. An amp with a noise
floor of 1mV has what looks like a fairly respectable
SNR of 86dB ref 50W. But, according to my ****rt-cuff
calculations,  that's only 69dB ref 1W


Regards
Iain