FM Acoustics fm155 preamp

totally different sound...Lamm and FM, you probably know, but it will still be some head scratching for you. But it is in the same "level" so you should be fine with the change of character if you are looking for that.

One is SS, the other tube. Sound completely different.Only you can decide what you like unless you are in to collecting brand names.

The Lamm LL2 sounds definitely more lifelike than the FM Acoustics. And the Wavac 300B is an excellent Design. I think, that combination is great. No 300B has the ability to drive conventional speakers, They are not made for that. They are super with Horns. When you still hold your Westminster speakers, believe me, you will never get the triode sound with these. No way. You will always get an impression but never the full monty. They play loud but that's it. None of them is able to deliver the miracle of the sonic fascination which is in the first watt...
Good luck :-)

Yeah, FM sounds better with preamp and amp together. Plus, I suggest you use their interconnects and speaker cable.

Dave, I believe that FM supplies only their own cables and requires that their products are used only with their cables. I am not sure about interconnects but speaker cables for sure nothing else can be used since they have their own custom plug. This is one of the things that turned me off from FM even though otherwise I find their gear to be among the best ever. This is the same thing that bothers me about Spectral, they require that only MIT cables are used which place additional passive components in the signal path, something that should be avoided IMHO or at least not be required. I wonder how much more successful these brands would be if they didn't have so many requirements and restrictions.