sonic frontiers line 2 break in?


I need advice from anybody with experience breaking in a new sonic frontiers line 2 preamp. I just replaced my conrad johnson pfr solid state pre with this unit. All the reviews I have read regarding sfl2 describe it being clear, dynamic and with an open soundstage, well mine sounds like I am listening to the music with a head cold. Is there a possible problem with my unit or does it need more time or what? The cj sounded great but wasn't compatible with some of my components. Help
bigwavedave
I have been leaving my whole system on for two days now, I don't leave the music playing when I am not home though. My system sounded great with the demo model cj it was sad to have to return it. I am hoping this sfl2 will open up.
Bigwavedave, whats the rest of your gears?
I was asking because 1201byl maybe right as SF Line 2 is very tranparent that you really can't hide anything from it.
I find the SF line series to be either you love it or hate it,due to it's ruthless nature of revealing everything.

I have a line 2SE myself that I bought a couple of months ago.I remember when I was breaking it in that it sounded like it has a head cold exactly like you described. I left it running for at 48 hrs straight (low volume)without listening to it, I was able to do it that long because I was so disapointed with my initial impression.

It was Saturday morning when I listened to it again.Oh Men,I'm saying to myself,"This is the Sonic Frontiers Line 2 SE that I was expecting" Everything just clicked.I absolutely love this preamp.

If your unit doesn't open up after 48 hrs of straight play I would suggest checking your tubes.

The rest of my gears if you're interested are
EMC 1,Line 2 SE,Krell FPB 200,Thiel 3.6,
NBS monitor series and Siltech cabling.FIM and NBS PCs.
Thanks for the ideas, I kept the cd player going while I was at work today on repeat mode and It is already opening up. I must say I was really bummed out when I first hooked it up but It is starting to sound like the unit I read about in the reviews, thanks goodness. I thought maybe I made a bad choice, it is such a hassle buying gear and having to return it or resell it, especially when you have high hopes of improvement. I have read alot about tube upgrades and the special edition versions come with nos tubes I can't wait to dabble it this area in the future.
I had similar first impressions when I plugged in my SF line 2. However, the pre-amp totally changed my system for the better after 100 hours. Btw, I also upgraded to Valvos tubes. I can't complain everytime I pop in Eva Cassidy's Evening at the Blues CD. Hang in there and don't give up yet.
My Line 2SE came with Siemens 6Dj8, the one with a falcon insignia on the back and steel pins. They sound good but was not quite great, I started tube rolling and since I purchased my unit from Kevin Deal, I got the opportunity to try some real good tubes from him at his recommendations.
I ended up with a Siemens 7308 which just made the sound just right.Be careful when buying tubes because their's a lot of fake or near end of life tubes out there.
Goodluck.