...a level adjustment, i.e. a line level preamp or a mixer, between the phono preamp and the ADC.
I'm gathering from everything you've said that I should have the Tascam (or similar) adjusting volume between the preamp and the computer
I have the turntable mentioned in the title. I suppose it's no big news that the USB-out is sometimes too loud (no gain adjustment) with some vinyl (which results in clipping,) especially nearly every double-LP I own. Much to my dismay it also happens with a few regular ones like my mint original-pressing Black Sabbath "Mob Rules." For about 70% of my LPs it's fine, though "limited" to 16-bit resolution for recording.My questions are these:Would it be feasible to use something like the M-Audio Firewire Solo Amazon to record my needledrops from the preamp's RCA-outs to my Macintosh? (I'm using VinylStudio and it's pretty great IME.)
If so, would I be able to effectively do so at 24-bit? (I don't imagine I hear any difference, but would like to do so for editing purposes.)
How are you observing the clipping? The only reliable way to observe clipping is to base your observations on waveform distortion of known audio signals. ...The point of maximum flexibility is obtained by having both a preamp and an audio interface that both have effective gain controls....There's no technical justification for using > 16 bits for digitizing vinyl...If your software has 3 bits or more extra resolution as compared to your source material, the losses in the digital domain are so far into vanishing that it is rediculous. Even one extra bit gives you a very useful dollop of additional headroom.
Audacity has a clipping indicator. I'm wondering how useful or accurately indicative that would be?