2. amps-preamps
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Classe vs. Sonic Frontiers

I currently own a Classe 5 Pre and power combo. I am wondering if changing the pre to a Sonic Frontiers Line 1 or greater would be a huge improvement. Also would be interested in the phono 1 to replace the internal phono in the Classe. If anyone has experience using Sonic and Classe let me know what your findings are. I am powering Proac speakers with this setup.
alun
sgmlaw
76 posts
 
I am not familiar with the Classe pre, but do own a Line 1. The SF preamps in stock form can best be described as very neutral, with none of the warmth typically associated with tube equipment. With an appropriate NOS tube change, however, these pieces can come alive. At present prices, they are also a wonderful value for the quality you get. Being unfamiliar with your Proacs and your front end, I cannot say how the stock combination would sound out.
alun OP
181 posts
 
O.K thanks again everyone. The response seems unanimous. The line 1 is a steal!!! Now, how do I know that it will drive my Classe amp? I am unfamillier w/tubes and I heard that one must match pre-power carefully. Any ideas?
jsbail
368 posts
 
I have a Classe 200 and sf line 1 and they work great together. SF preamps will match well with most solid state amps.
kkeyser
3 posts
 
I wouldn't worry about any SF tube preamp driving your Classe amp. I've used both a SFL2 and SF Line 3 to drive a Classe CA400 and both were/are fantastic... Kent
7p62mm
97 posts
 
I am not familiar with Classe's products. I love my SF line 3. I never think that I am missing anything when I listen to it. The price is also great. I use it along with a Krell KSA 200S to drive a pair of Ohm Walsh 300's. I am curious as to how it stacks up against a good SS unit as I have no experience with SS preamps.
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