Hi, my name is Reza. I have been recently helping my father’s interest to make a solo classical-guitar album. Unlike the common solo classical-guitar recording which contains only classical songs, this album will contains many kinds of music style. Still they are included but just a few. There are many kinds of genre here, including Jazz, Pop, Flamenco, Country, R&B, and more. But still in solo classical-guitar playing. I just want to get a recording that would be good enough to be a commercial CDs, because it will to be sold in his live concert. My recording application will be exclusively applied to a single acoustic instrument, that is a classical nylon-string guitar. And I don't need any special effects like a new-age music. What I only need is just a smooth and clear sound of a guitar. Here is a list of my current equipments. They are really far away of high-class recording equipment, but for a moment I use them to save money because I don't have a great amount budget for this project. 1. PC with Cakewalk Sonar 3 Producer Edition installed. 2. M-Audio Firewire 410. 3. Presonus TubePre single-channel PreAmp. 4. Belden cables with Amphenol connectors. 5. Shure SM-57 microphone (and lookin' for SM81 or KSM32). When made a few records without using the TubePre, it was before I bought it. The sound captured is very thin and weak. From the record meter in Sonar track, I saw it could only reach -30dB (in -90dB level scale) although I'm using almost 80% of the M-Audio FW410 gain. FYI, the microphone is placed about 8-10 inches from the guitar aiming to the soundhole. So, I bought the TubePre to strive for increased gain. But the TubePre isn't just give me more gain but it also give me more noise and hum. And I saw the record meter level in Sonar shows -42dB (in -90dB level scale). And the result is like an old-age cassette recording. I've called the tech support of Presonus and M-Audio by e-mail and they both give me the almost the same answer that the gain is too much so it makes the noise floor appear. This answer is very confusing. How can I increase the gain without increasing the noise ? And I read a thread from "ghellquist" Gunner in this forum (http://recording.org/postt19379.html) that he succeeded to make a classical music recording on the stage. He gave some samples of it and I think those are very nice. I just keep wondering how could John Williams or Paul Galbraith or David Leisner make a super-clean and warm sound of their guitars. Hopefully someone can give some advice about this, it will be greatly appreciated. Thank you very much. Reza.