Pre-amp, integrated, new power amp...I'm confused


OK, after posting many threads and reading tons of old threads and reviews...I"m stumped. I have a NAD C370 integrated powering SOnus Faber COncerto's (Home Version), a Cambridge audio Azur 640C CD player going through a musical fidelity tube buffer(my one and only audio source), Cardas Cross IC's and speaker cables. A REL Stadium III handles the bottom end. I love my system, excepy for a little graininess in the top end. I would like to smooth out the sound and make it more liquid and natural. How do I best accomplish this? DO I invest in a whole new integrated? DO i Drive the power amp section of my NAD with a tube pre-amp? DO I invest in a better Source (New DAC or whole new player). I like the sound smoothe and natural...maybe a little warm (Which is why I chose SOnus speakers. I would like to spend no more than $1000. I saw a BAT VK-3i tube preamp available. Am I on the right track with that? Help!
phoenix469
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Phoenix469,
I really second Tvad, adding a pre, albeit tube, will not eliminate the grain in your system. I think taking a closer look at the source would yield better results in the end. I see you have MF tube buffer; wonder why you got it in the first place-were you unhappy with the sound straight out of the Cambridge?
The grain is from the CD player, that player is good, but you are hearing its limitations. Get an outboard DAC for cheap like a monarchy audio DAC and see how it goes. They are cheap, you can experiment and then sell for what you paid for it. Great opportunity to start testing digital stuff out.
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Thanks! I see all of your points, and they are all valid. I think I'll hold off on the Preamp. I'll do some experimenting, and take a hard look at my source. SInce it is my only source I should treat it well. A new integrated is not out of the question either. I thank you all for keping me from making a costly error (costly for me anyway) Thanks again!