Hi all,l am looking for a step-up transformer for my EAR 802 pre-amp,at the moment l am using Ortofon T5s should l be aiming higher for say an Audionote/EAR Step-up? The 802 has Mullard CV4004 in the phono section, or should l go for say a Puresound P10 with step-up,would this better the 802? Vinyl front end is AVID Volvere/SME V/Lyra Helikon,tone-arm cable is Nordost Quattro -Fil,l should also point out that l use a TE Groove,but would like to swap between SS and Valve as the mood dictates,thanks for any help and enjoy the sunny weather!