I acquired an Accuphase T-100 and plan to refurbish it. Before the multiplex chip, there's a LM749 driving it. As it is a TO99 op amp, the op amp choice is rather small. I want to keep a to99 op amp in this place. I hate the OPA627 which I find too laidback and lacking life, The LME49710 is better but is the opposite of the OPA627 ( too cold sounding) There's the AD744 wich I never tried. Is there any other interesting choices ? The T-100 has some emphasis in the mid high (lean mids) so a warm sounding op amp should be perhaps good.