Keith,the voodoo adapter arrived,so I tried the stealth on the CD player and the amp,which it was designed for.It really came on on the amp too.So one on the pre and the amp ,should take me to,another level again.The owner of stealth,said I shouldn't loose anything with it on the pre ,if I stay with the same PC on the amp,which I was hoping he would say.Cause it really is superb.