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Pre-amps with seperate power supplies .....

I have a pre-amp with a seperate power supply that is connected by an umbilical cord. I am not an electrical engineer and I do not pretend to be one nor do I play one on TV.....I am pretty sure that there is DC current going from the power supply to the main pre-amp to power that component. Does it make any sonic sense to upgrade that umbilical cord seeing how that it is ''only'' carrying DC current ????? The pre-amp in question is a Classe' CP-700. I have asked this very same question to the fine people at Classe' and they said improving that cord would not make any difference.... So, I will ask that question here and also see if anybody has actually upgraded that power cord.
garebear
garebear OP
1,154 posts
 
I had a long talk with the technical support group at Classe' concerning the upgrading of my umbilical cord on the CP-700. Actully Bobpaule, you hit the nail right on the head. Classe' had explained to me and some of it will be lost here as I do not have an engineering or electrical enginering background is that there is such a small current going through the cord and it was built with the issues that we have all addressed here in mind...RFI,EMI etc. in that by changing the cord you could also be possibly changing the current, impedence and also be changing the sound achieved / desired by this pre-amp. They also said that they have discussed this with others and the general consensus is, you will not hear that much of a change in sound for what you will pay for an increase in that cord.....also, I need a longer length and Classe' stated be careful as the cord was built in the length to handle the current needs....any longer and you could, could run into some trouble. As the origonal poster....I will leave as is and thank you for all of yuor input.
atmasphere's avatar
atmasphere
11,837 posts
 
Atmasphere, Years ago before you made your first preamp aftermarket power cords were not popular.

I first became aware of after-market power cords in about 1985. Not sure how long they have actually been around, but at least since then... that is about when we started using IEC connections too.
knghifi
1,668 posts
 
06-03-13: Atmasphere
Years ago before we made our first preamp we began using IEC connections on our amps (which continued with our preamps) for the simple reason that audiophiles like to tinker.
So True. Reason why MOST companies don't supply rare NOS tubes for stock.
rrog
1,958 posts
 
"I first became aware of after-market power cords in about 1985."

Who was producing aftermarket power cords in 1985. Many companies were using IEC sockets and other types of detachable cords, but I do not recall the reason was to facilitate the use of aftermarket power cords back then.
atmasphere's avatar
atmasphere
11,837 posts
 
Seems to me Fulton was making power cables. Its been a long time but I seem to recall Sumiko had something too.
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