Thanks for the input Charles. The amp is still breaking in, but I'm confident I'll get to a good place. My dealer was nice enough to let me bring my speakers over to audition them before I bought, and the combination was very engaging. I'm going to let the amp and tubes really settle in and get a handle on the sound before rolling tubes. I do have some mid 1990s Svetlana 6L6s around the house as spares for my guitar amp, so I suppose I can pop those in to see how they sound.
As far as Merlins being easy to drive, they certainly do have that reputation, and I know Atmasphere amps are generally thought of as a very good match for them. However, as I mentioned above, I first paired the Merlins with the Leben CS-300, and the Leben really couldn't drive them in a satisfying manner. This was strange, because the Leben did an amazing job driving a pair of Dynaudio Focus 260s, which at 4 ohms nominal impedance, would theoretically be a harder speaker to drive.
I also think the Line Magnetic is tonally just a better match for my Merlins-- the Leben sounded a bit lean on the Merlins, but fantastic on the Dynaudios. By the same token, the LM/Dynaudio combination yielded some plummy/wooly bass, but through the Merlins produced the best bass I've ever heard from my speakers. It would have been interesting to hear the more powerful Leben CS-600 paired with the Merlins, but that amp was just a bit too expensive.
Truth be told, I was pretty sold on Leben when I went to the store and was just trying to make sure they could drive my speakers. There was really no contest though and I had to change my plans.
As far as Merlins being easy to drive, they certainly do have that reputation, and I know Atmasphere amps are generally thought of as a very good match for them. However, as I mentioned above, I first paired the Merlins with the Leben CS-300, and the Leben really couldn't drive them in a satisfying manner. This was strange, because the Leben did an amazing job driving a pair of Dynaudio Focus 260s, which at 4 ohms nominal impedance, would theoretically be a harder speaker to drive.
I also think the Line Magnetic is tonally just a better match for my Merlins-- the Leben sounded a bit lean on the Merlins, but fantastic on the Dynaudios. By the same token, the LM/Dynaudio combination yielded some plummy/wooly bass, but through the Merlins produced the best bass I've ever heard from my speakers. It would have been interesting to hear the more powerful Leben CS-600 paired with the Merlins, but that amp was just a bit too expensive.
Truth be told, I was pretty sold on Leben when I went to the store and was just trying to make sure they could drive my speakers. There was really no contest though and I had to change my plans.