I went from the ST 150 on to the 185 Signatue Mono's and have not looked back. The 185's were noticeably "leaner" sounding, even after experimenting with different tubes,
but I have come to appreciate that in my current set up.
I also sent my VTL 5.5 line stage in and had it bumped from version 2 to version 3 which made a difference.
I had a favorite SS amp for years, and was amazed when going head to head with the 185's the SS amp couldn't duplicate the bass response of the tubes. Never tried the same comparo with the ST-150 but suspect similar results.
I am not one to get stuck on brand loyalty, but I do appreciate what VTL bringss to the table (house sound if you will) in all of their gear (had the 2.5 with phono stage, have the 5.5 LS), so I will move up their food chain again when the need arrises.
but I have come to appreciate that in my current set up.
I also sent my VTL 5.5 line stage in and had it bumped from version 2 to version 3 which made a difference.
I had a favorite SS amp for years, and was amazed when going head to head with the 185's the SS amp couldn't duplicate the bass response of the tubes. Never tried the same comparo with the ST-150 but suspect similar results.
I am not one to get stuck on brand loyalty, but I do appreciate what VTL bringss to the table (house sound if you will) in all of their gear (had the 2.5 with phono stage, have the 5.5 LS), so I will move up their food chain again when the need arrises.