Sonic Frontiers Preamps - Cold & thin?


In reading reviews on SF preamps, there seem to be two camps: those who think they are among the best tube units out there, & those who think they sound analytical, & thin in the midrange & treble. Would like to hear other's experiences & how they would rate them against AR & CJ. Also, how does the SFL-2 compare to the newer Line models?
kevziek
Hi Kevziek; We once clashed on a thread, but I'm over that, and I hope you are too. I like your thread. I've owned or auditioned (in home) all the SF pre-amps you mention. And I presently use the SF Line 2 in my main system, along with a sweet sounding McCormack DNA2DX amp, and the somewhat warm, forgiving Vand. 3Asig. spkrs. (Levinson front end). In my system, the Line 2 is neutral, timbrally accurate, detailed, and holographic, and it's also musical if you like accurate rather than euphonic. I've read the criticisms of the Line series preamps, and none of them have been my experience. I certainly do not find them cold, thin, sterile etc. in my system, but I do agree that it is a matter of system matching and also preferences. Personally, I've decided that I don't care for the "syrupy rich, tubey sound" that characterizes some (especially) older tube equipment, mainly because it sounds to soft to be real to me (I've played guitars, both acoustic and electric for 40 years, and a steel stringed acoustic guitar does not sound soft). In fact I very much agree with the Stereophile review of this pre-amp. IMO, the SFL-2 is the finest sounding pre-amp SF has made, ie it's a bit "richer" than the Line 2, and somewhat more involving, but the one I auditioned had bad transformer hum, and I returned it. Then the Line series came out. The Line 1 sounds much like the Line 2, but it's a little more aggressive, and I use it in a 2nd system. I tried the Line 3, but in my system it was much too forward with a big, bloomy (un-natural) soundstage. The SFL-1 is an excellent older SF hybrid pre-amp with just one tube, and its sound character can easily be changed with just the change of one tube. I used the SFL-1 for several years. A good friend has an older C-J pre-amp that is much more "tubey" sounding, but I prefer the more neutral sound of the Line 2. I haven't heard recent ARC pre-amps, but from what I've read, they are also trending much more towards neutral than their past products. Cheers. Craig.
I have owned the SFL1, SFL2, and currently have a Line 1. I find the SF products to sound neutral and accurate. I also have a Rogue 66lsr which souds very different. The Rogue is warmer sweeter and richer, but it is softer and less accurate. The SF is much more neutral and revealing. It depends on which flavor you like. I thought the SFL2 was richer than the Line 1 but the Line 1 is faster and more neutral.
I have found all SF products I've auditioned in my system (pre's and power amps) to range from neutral to a bit thin. The electrostatics I have now are probably a contributing factor due to their detail and transparency. But I have not found SF to be lacking at all -- just a different sonic signature. I know this thread is about pre amps, but... those Power 3's certainly don't suck. Certainly not with speakers thar rock yo balls off. They gots big ones. So far as SF's or anything else sounding like "wire with gain" is concerned, please pass me whatever it is you're smoking right now ;-)! Isn't this everyone's dream? Best, Jim.
I used to own an ARC LS22 which I sold after I bought a Line 3. The Line 3 sounds more neutral than the LS22 (I find that I like it better as I don't won't my system to add or subtract anything from the source material). Added bonuses are the seperate power supply and superb digital volume control. I suspect that one would have to go up to the ARC Ref 2 to get equal or better performance. Considering that the Ref 2 costs more than twice as the Line 3 makes me view the later as a 'best buy'.
went from pre 1 to line 3 and it was an incredible transformation to my system. line 3 resolved more information and delivered a seemingly wall of power or additional force that my system previously lacked. have had other gear and the SF products seem to agree with my ear. the source is everything improve it and you improve the result