c-j technical questions

I have a CJ MF-200 which is good into 1 ohms. These amps have alot of current. You should have no issues with these amps concerning power into 4 ohms. I believe my amp puts out 250 watts per channel into 8 ohms and over 400 watts into 4 ohms. I have an old review somewhere. The Mf-2300A is basically the same amp just tweaked with more exotic parts. I spoke to Bill Thallman who used to design this stuff. He said the 2500 has better bass and drive, but the 2300 has a warmer more natural midrange. I will be selling my amp soon since I upgraded to a Pass amp. I kept my CJ a long time. I tried many highly rated amps in my system to try and better the CJ. I kept coming back to the CJ, and sold the other amps (Llano, Odyessey, Belles, McCormack) until I got the Pass amp. I remember reading someone else who owned the MF-200 with speakers dipping into 1 ohm. The CJ amp had no problems. The transformer on this amp is monsterous.

If they weren't clear,its for a reason,look for another amp.I have no CJ experience,but you know when people are confident and when there not...good luck,Bob

I own the MF2500 and have asked this question of CJ in the past. I was told that the MF2500 will put out 400 watts per channel into a 4 ohm load. I did not perceive any reluctance on the part of CJ to give me this information.

Thiel's are a great speaker but a demanding speaker! You may want to step up a notch or two on the amp and try to shoot for at least 300 wpc.

Unsound

I own Thiel 3.6's and my MF2500A had no problems driving them and sounded very good. I did upgrade to the premier 350 and obviuosly it does a better job in all aspects. But I would not be concerned about the 2500A driving your Thiels. Thiels are not nesessarily difficult to drive because their impedence curve, at least the 3.6's, is relatively flat. What makes them a challenge to drive and why they need current is because their impedence curve does dip below 2 ohms at least the 3.6's do over certain frequencies. Difficult loads are when impedence curves bounce all over the place creating a constantly changing load to the amplifier.

Having siad all this I would be more intersted in what the impedence curve of the 3.5 looks like as I am assuming it is similar to the 3.6 which may be a poor assumption. If you have not already I would contact Thiel and ask them.

Chuck