improving my system, please help

Agree totally, play acoustic treatment first. Until you realize how your existing system sounds, then decide to stay or upgrade. Med-Fi in a good room sounds better than Hi-Fi in a bad room. People spending hunreds on a power cable but zero on their walls are not very wise. Treatment is a must for high revealing system, like yours.

Electrostats have to be pampered to sound there best; they are a demanding speaker to get sounding right. 1.) they tend to be far more sensitive to speaker placement than many other more "conventional" electrodynamic transducer designs simlply because they are dipolar in nature. Play with speaker placement, read the owner's manual on positioning, etc. 2.) I'm not a big fan of AC conditioning in most systems; However, since electrostats plug into the wall they can make AC "grunge" audible through there panels. So a power conditioner may help. 3.) I'm not sure on your amp (whether its tube or SS), but Solid-state is generally a little better suited for driving speakers that present very low resistance at certain frequencies like the electrostats. 4.) There was a thread in the past 72 hours entitled something like "speaker cables and ESL" which it cites an article and which I posted another excerpt showing how cables can make an improvement with designs like the Quad ESL. And Lastly, like others said, experiment with the rooms acoustics. You may not have to buy acoustic treatment, depending on your furniture and the room and how you arrange things, you can still get good results. A large bookcase with books of different sizes will diffuse sound, a tapestry on the wall will help absorb it, etc. Good Luck!

The fact that you are looking to improve your system tells me that you are not happy with the sound that you are getting. While there is a lot of merit to the suggestion that you live with the present system for a while, my initial impression is that your system is not a well balanced one, according to the system building philosophy that I, and I stress "I", think should be followed.

The more revealing that the speakers are, the more clearly they will tell you about the weaknesses, and merits, of your electronics. Put simply, and IMHO, your electronics are not good enough for your chosen speakers. Electrostats(ML)are very revealing, and while I am not familiar with your amp, my fairly extensive experience with different brands of ESL's has taught me that THEY LIKE TUBE AMPLIFIERS. Others might disagree. The CJ pre, even the PV5, is really too colored and far, far, better is available for not a lot of money.

As far as subs go, DON'T GO THERE! Not until you have a better handle on the core of your system. Been there, done that with ESL's; a major can of worms. With the right electronics, I can't imagine really needing one.

I'd like to respectfully suggest that you are trying to do too much too quickly, best of luck and keep us posted.

while I find my current system very enjoyable to listen to, I know that I will enjoy it much more if it sounded better. I know of no one else with a system nearly as good as mine, so I am at a loss for what can be obtained. My only experience with tube amps was a AR that I borrowed for a few days back when I had Snell A2's. I was very unimpressed. while they show no advantages, there was a definate lack of bass extension compared to the SS amp I was using at the time (Eagle 2). Bass extension is a definately an area that I would improve. I am certainly willing to try one again with the ML's. It seems like beyond the obvious need for room treatments and dedicated lines, that most are recommending a preamp upgrade.

Make no assumptions as to what a tube amp might sound like driving ML's, based on your experience with Snells; apples and oranges, impedance load wise. In my experience, using electrostats, tube amps always seemed much more natural in the area of dynamics and alivenes,and much more dimensional sounding as well. Solid state amps tended to sound much drier and thin as opposed to full bodied, like the real thing. I'll never forget, quite a few years ago, the first time I tried an all tube amp to drive my Stax F-81's, granted, a more difficult speaker to drive than your ML's. I had been very disappointed with the sound that I was getting driving the Stax's with a Moscode 600, 300(!)watts, solid state output stage. A friend brought over a lowly, stock Dynaco ST70(!!!???); those 35 tube watts made the Stax's sound like I had never heard them before: sweet, pure, dimensional, engaging, if not very loud. I currently drive a different pair of Stax's with a pair of Manley Reference 200 triode monos, and the combination is woderfull. Obviously, there are great solid state as well as tube amps out there, and some might prefer solid state; I'm simply trying to encourage you to not rule out tubes, as you might find the "magic" with that combination. Yes, the Eagle was known for it's great bass response, but a good, modern tube amp should give you satisfactory bass response. I stand by my comments concerning subs and your pre. Best of luck