Confused about Krell FPB 300 400 200 Amplifiers

Dual power supplies will give you greater separation of the signal and ensure that you have no "bleed-over". They will also allow you to plug into two separate AC circuits if you have them in your room (just have to be careful about creating a ground loop). Finally, the output of two power supplies will likely be greater than if the designer had to use just one larger one due to size/weight and manufacturing issues (harder to manufacture a precision 3000VA transformer than two 1500VA ones). Probably some other benefits also (electrical field density, "speed" of smaller torroids, etc.).

Julian

If your other components and speakers are revealing enough, Monoblocks will give you much better sound than a multi-channel amp.
It would be helpful if you posted your entire system so we can give you better advice, help you decide whether monoblocks would be over-kill in your system or not, whether you could use the extra 100 watts that the 400 would provide, etc.

Hi,

I use to have fpb 200c (twice) and fpb 250c. A few days ago I got the fpb 400cx. The 200c was cold and dark, the bass was thick and full. The 200 lacked the extrim treble, I had the fill that it look at me with "shark eyes".
The 250c was warmer with a very small tilt from the midrange to the mid-treble. The bass was thiner and quicker compare to the 200.
Martin Colloms from the magazine HFN compare the fpb 300c with the 400cx. He rated The 300 at around 35 points, the 300c at around 42 and the 400cx has lifted the score up to 65. Compare to others amp's (CJ Premier 140 rated 36 points), it's a tremendous achievement.

Tomer

Can you please explain the difference between the 200c and the 400cx?

The new Mcx 450 mono block series is a better Krell moving away from the old Krell sound and adding better mids and highs.

Happy Listening.