[PRELUDE]

Ladies and gentlemen
I was wondering if any one else went this route before as far I hate to be the only one.
Is anybody out there using a very long connection from BDA-1 or any DAC to pre or integrated amp?
If yes, how long? and what would be the downside of doing this.

[brucek]

Is anybody out there using a very long connection from BDA-1 or any DAC to pre or integrated amp?

It would be better if you specified what "very long" was, and whether it was balanced or not.

[PRELUDE]

It would be better if you specified what "very long" was, and whether it was balanced or not.

I would like to run balanced and it will be from 60 to 80 feet.

[brucek]

I would like to run balanced and it will be from 60 to 80 feet.

A balanced cable of that length should be no problem as long as you maintain a low source impedance and a high load impedance (which is generally the case with solid state devices). I suspect the output impedance of the BDA would be quite low, so no worries there. If the source had a high output impedance then the concern is that the higher reactance (frequency dependent resistance caused by capacitance) of the longer cable, combined with a high output impedance of the source creates a low pass filter which adversely affects bandwidth. This distortion of the higher frequencies increases with higher output impedance's. The interconnects capacitance results in a parallel reactance that will roll off the higher frequencies. To put it simply, your highs would suffer. No problems though as long as the preamp you use is a conventional solid state device.

Noise won't be an issue with a balanced interface.

brucek

[PRELUDE]

Brucek,
Thank you very much sir.
I had to leave the house so I could not explain that what exactly I am trying  to do.
The whole idea started when I found out that I cannot stand the mp3 at all. This garbage which is the great name for mp3 is not listenable at home at all but it might be a great thing in the car or when you travel and you want to kill some time in the airplane. I am remodeling my shop in the basement and for the first time try to play this mp3 while I was working and it did bother me so much till I end up to turn it off and work with no music.
I thought about this and this is a work shop and I would never have any expectation about hi-fi but that mp3 is bothering me.
As far I have the BDP-1 and BDA-1, I was thinking to run a output of BDA-1 to a digital integrated amp which would stay in the basement and I could control the BDP-1 right from basement. This would save me space and better sound.