I'm using the Joule LA150 MKII with my Atma-sphere M60s, till the MP3s arrive next week. All I can say is if the MP3 with balanced connection can improve with I'm hearing with the Joule feeding the Atma singled-ended I will be very impressed and it will be interesting to hear the "house sound difference" between the Joule and Atma preamps. As stated above, both excellent product lines. And coming to the Atma amps after years of owning the CAT JL2 was a real revelation, the OTLs and my Merlins seems like a great match, I actually prefer them over my CATs (sold them)when matched with these speakers, which I never expected that to happen.
