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Tube CD player and no pre-amp

I have an Ah! Njoe Tjoeb 4000, and decided to try not using my Bryston preamp, going directly into my Pass amp. I am amazed how much more I like it. But it is running a 20ft interconnect. Am I making a mistake?

I called Upscale Audio and they said no problem even though the input impedence of my Pass Aleph is low.

So now I want to know will trying different op-amps make a difference in my CD player? Upscale Audio is supposed to offer a kit soon, but I don't know if they sound the same.

Anyone else going "pre-ampless"?
peter3105

Showing 1 response by marakanetz

marakanetz's avatar
marakanetz
5,473 posts
 
...even if the Pass impedance is low the tube output impedance can be neglected in comparison to Pass input.
Is there an analogue volume control in your CD-player?
Most-likely if you will be using a passive preamp you will have a very small volume range to operate and the length of interconnects will matter.
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