Vandersteens are awesome but they need some power to be at their best. The fact those 5as have a powered bass module, means the absolute power required is no where near as high as it could be.
You have a few options. The room is large but not crazy and those aren’t difficult to drive.
You could look at something like a BAT Rex 3. Two issue with BAT is everything needs to be BAT or it loses a lot in terms of sound quality so you would probably want a BAT pre as well. They use the same tube but it is also a parallel SET design which could be problematic. SETs don’t like being driven hard. One upside is you can get this on a 60 day demo from Music Direct. My hunch is a 45w push pull will outperform this when driven hard but I mention because of the tube type.
Another really interesting option is Jadis. It is a KT120 based solution but is going to have oodles of power. They have a 150w class A/B amp that is $16,500. They have some high powered Class A Monos that are in the $30k to $40k range. Gorgeous equipment and a sound that is somewhat legendary.
Angstrom is an Italian brand and the Stella line of products is incredible. The SSA 100 or the SMA 150 would be A+ choice. $17k and $32K respectively. It is Class A, zero feedback and uses EL34s so it has a very appealing sound.
The final (and IMO best) option would be the KR Kronzilla DXL Monos. They are 140w push pulls using the Kronzilla tube and are also Class A with zero feedback. These will be closest in terms of sound to your Lamms I think other than the BAT, but the BAT seriously might struggle.
I am a KR dealer and am getting ready to sign up for Jadis and Angstrom as they are awesome lines. I have no relationship with BAT.
You have a few options. The room is large but not crazy and those aren’t difficult to drive.
You could look at something like a BAT Rex 3. Two issue with BAT is everything needs to be BAT or it loses a lot in terms of sound quality so you would probably want a BAT pre as well. They use the same tube but it is also a parallel SET design which could be problematic. SETs don’t like being driven hard. One upside is you can get this on a 60 day demo from Music Direct. My hunch is a 45w push pull will outperform this when driven hard but I mention because of the tube type.
Another really interesting option is Jadis. It is a KT120 based solution but is going to have oodles of power. They have a 150w class A/B amp that is $16,500. They have some high powered Class A Monos that are in the $30k to $40k range. Gorgeous equipment and a sound that is somewhat legendary.
Angstrom is an Italian brand and the Stella line of products is incredible. The SSA 100 or the SMA 150 would be A+ choice. $17k and $32K respectively. It is Class A, zero feedback and uses EL34s so it has a very appealing sound.
The final (and IMO best) option would be the KR Kronzilla DXL Monos. They are 140w push pulls using the Kronzilla tube and are also Class A with zero feedback. These will be closest in terms of sound to your Lamms I think other than the BAT, but the BAT seriously might struggle.
I am a KR dealer and am getting ready to sign up for Jadis and Angstrom as they are awesome lines. I have no relationship with BAT.