Cary Audio

i have been looking for a hi Quilty Tube PreAmp to bring New Life into my older 1990s audio system Mainly My Krell KSA 150 Amp Into a Plinius 16 Preamp  VPI  T/T Soundstage Cart  and my Power Hungry  Thiel speakers  i was looking  at Cary SLP-05  I went looking on & was told they SOLD OUT To a Now Poor Quilty  Build & For $ 4K i could do so much better Please  Need HELP   Lost In Space