Hi Cello - you're welcome. Regarding your Cortese - I wonder what vintage your Cortese is. You may have to contact Mick for info on those tubes. My Cortese uses the 6688 tube up front followed by the 6922.
Honestly? I haven't experienced too much improvement out of changing the phono tubes. Right now I use Telefunken CCa as the 6922 and Mullard E180F in the 6688 position. I'd say its a little better than stock in terms of clarity but the gains are not as significant as when changing other tubes in this preamp.
Honestly? I haven't experienced too much improvement out of changing the phono tubes. Right now I use Telefunken CCa as the 6922 and Mullard E180F in the 6688 position. I'd say its a little better than stock in terms of clarity but the gains are not as significant as when changing other tubes in this preamp.