Lyra Delos and Pass Labs Phono Pre

@asp307 I have used the Delos on my XP-15 for several years.  I settled on a 250 ohm load but honestly anything between 100 and 1000 sounded fine with that combo.  I always have used the balanced outputs to the line preamp. The XP-15 is a very well behaved phono pre. It allows you to hear the differences in a wide variety of cartridges and tonearms.

Thanks @karl_desch that's helpful. What gain setting do you use? 

@asp307 , I use the medium gain, 66db setting, which I feel gives the right amount of gain without adding a slight edge that I hear on with the highest gain setting.