Would love to help, but the intervention of all the computer stages
obscures straightforward comparisons, IMHO.
On Wed, Jan 23, 2019 at 1:08 PM Brewster Kahle <[log in to unmask]> wrote:
> Building on the Great 78 Project <https://great78.archive.org>, the
> Internet Archive <https://archive.org/details/archive.org> is working
> towards a new project to digitize LPs. Dubbed “Lost Vinyl”, the project
> seeks to preserve LPs focusing on those that never made it to the
> digital world.
> We are seeking community feedback to help us find the best sounding
> recording chain.
> In this item ( https://archive.org/details/lostvinylsamples ) you will
> find 5 sets of LP transfers of 5 very different musical styles done with
> 4 combinations of phono-preamp and analog to digital converter. The
> components cost anywhere from a few hundred dollars to several thousand
> dollars. The demo files were prepared by the technical engineering staff
> at George Blood LP <https://www.georgeblood.com>. Performance
> specifications were verified (all RIAA preamps are within 2dB of each
> other at any frequency, most within 0.1 or 0.5 dB), levels were matched
> at each stage, and all are recorded at 96/24. The files have been
> renamed in different orders to obscure their provenance. Only one person
> has the key to which file was made with which combination of hardware.
> The hardware used includes:
> RDL (Radio Design Labs) EZ-PH1 phono preamp
> TimeStep phono preamp
> Focusrite Scarlette A/D covertor
> Prism Lyra A/D convertor
> The combinations are (in no particular order):
> RDL into Lyra
> RDL into Scarlette
> TimeStep into Lyra
> Lyra standalone (using instrument input terminated by 47 kOhms resistor
> with RIAA EQ preset)
> Please add your comments in the reviews of the item containing the
> samples https://archive.org/details/lostvinylsamples.
> To reiterate-- the samples are made with different equipment and are not
> consistent from one work to the next.
> Thank you for helping! If you would to participate in other ways,
> please let us know.