Which of the following preamps?


Looking to purchase a tube preamp either used or new at around 700.

I looked around Audiogon and found a few:

Audio Experience Symphonies Plus - 690
Sonic Frontier SFL1 - 750
Conrad-Johnson PV11-L - 625
A variety of used Audio Research LS for about 700 or more
Audio Miror T61 - 699

There are really quite a few out there so hopefully I can get some feedback from you.
andy2
I own / owned CJ , ARC and SF . The only one that ever required service is the SF. They all sound great. The CJ is a little warmer, The ARC a little more detailed. Both great your choice depends on the associated components and the style of sound you prefer.
May I suggest you consider the AES DJH Super Preamp? Especially outfitted with Polk NOS tubes, this simple pre sounds outstanding. Currently, one is being offered on A-gon.
One thing to consider is that years down the road ARC and conrad johnson will probably still be in business and offering support. That's one of the reasons I listen to an LS-16 in my system. This is not necessarily a recommendation for your system. Weiserb's comments on the sonic signature of these preamps are dead on.
What do you think about Audio Research SP9MKII?

There is one on audiogon now for 750.
The AES products are a great value and if you're willing to go a little higher there is a Cary SLP-88 on Audiogon for $950.