If you have to have tubes for your Merlin, go Ars Sonum.
If you're worried about power (and I think the 25wpc is not enough, myself), have you heard about/looked at the new (some time this year) Gran Filarmonia? Ask Bobby about this one or Google it. It's not up on the web yet except as a rumor w/some spy shots. Its a real looker.
That said, I would personally recommend 120wpc or more for the Merlins. And then add better cables. If you've never tried something other than Cardas -- and you're using tubes on them -- then you've never heard what these 2-ways can do. It's punch-a-hole-in-your-chest bass, but something I never got with a tube amp. Any tube amp.
If you're worried about power (and I think the 25wpc is not enough, myself), have you heard about/looked at the new (some time this year) Gran Filarmonia? Ask Bobby about this one or Google it. It's not up on the web yet except as a rumor w/some spy shots. Its a real looker.
That said, I would personally recommend 120wpc or more for the Merlins. And then add better cables. If you've never tried something other than Cardas -- and you're using tubes on them -- then you've never heard what these 2-ways can do. It's punch-a-hole-in-your-chest bass, but something I never got with a tube amp. Any tube amp.