Expensive but great sounding. However, surpassed slightly by Krell's ownFPB 250 monos.Also surpassed in the midrange area by ARC or CJ amps but
better overall.

You guys have missed some side benefits of owning a Krell FPB300:
1. You can turn the thermostat way down in the winter.
2. It's theftproof - too heavy to lift, and if they try the heat sinks will
shred their fingers.
3. It doubles as a light dimmer.
4. When you use your airline card to buy it, you're halfway to a free trip.

Obviously Krell is not a "fad" brand. They have been around almost 20 years and make excellent products. If you are going to "rate" an amp please let others know the adjoining equipment so we can decide for ourselfs if you have a problem elswhere in the system that you are attributing to the amp.
Krell FPB 300
Krell 20iL CD Player (no Pre-amp needed)
Martin Login Monolith III
MIT 330+ and MIT 750+ cabling

Very simple and straight forward, Sounds Awsome!

This amplifier is one of the best sounding in its category, but I experimented several problems with reliability. First, after one year of use, a digital card broken, letting me with no music on right channel. After, the italian distributor, and its service point, had never seen inside one of this new amplifier and trying to repair had done a disaster. First the attempt to change the entire right siderail but the service point don't know the exact procedure that want the reset of the two microprocessor on both right and left digital cards.Resulted a 7 degrees of different temperature between the tho channels. They want to give me a similar "repaired" amplifier, declaring it "perfect". Krell itself in fault because don't reply to my repetitive answers about the reasons of so no good reparation. They have to change my defective 300 with a brand new but the problems don't stop. Because the new 300 had one of the three leds on front burned. Again problems and now after the sostitution, made by me, I sold definetively my 300. I never more want a Krell, I never more want to buy anything by Audio Natali, italian distributor.

While trying to find a bigger amp to drive my Sonus Faber Extrema, I borrowed the Krell home to compare to my ARC VT-100. After two hours of listening, I switched back to my ARC and I never went back to the Krell that weekend. Not that Krell is not good. It's very good indeed among all solid state (ML, Classe, and Plinius), but it does not draw me into music.
High is smooth, mid is liquid, and bottom end is tight. But the whole package just miss the mark by fractions. You don't judge a dish by analyzing its details; it is how it tastes as a whole.

I have been a Krell (pre/power combination) owner for a number of years now. My newly acquired FPB300 presents a significant improvement over the previous generations of Krell block-buster amps. In my system (Sony XA7ES CD player, Krell KRC-3 pre-amp, Thiel CS3.6 speakers, Symo Reference/AudioTruth cables), the FPB300 is at the cutting edge of speed, definition, extension, pace, power and grace in the realm of power amplifiers. While not as "real" in the midrange as some of the super-tube amps (CJ Premier, Jadis, Audio Note etc), the Krell counters with the ability to be (relatively) neutral across all frequencies and into any conceivable load.In truth, there is still a slight "greyness" to the Krell sound but I prefer that to the up-front brightness of the competing Mark Levinson 333 sound. Besides, the 333 is seriously lacking in sheer guts!
The FPB300 lower treble could get "tizzy" sometimes but I am still undecided if that is caused by the Sony or even the CS3.6 tweeters. The Classe and Rowland amps certainly sound "smoother" though with a little less definition (I think).
While a S$15,000 power amplifier could never be called a bargain, the FPB300 represents true value for money. Fantastic amplifier!! No regrets!!

I found this amplifier harsh agressive and grainy and in your face when listening to b&w speakers. however when listened to with thiels they sound too laid back and rolled off. I think I'll stick with the arc vt200

Krell FPB-300 is a very musical amplifier. I use it to drive B&W 801 III withgreat success. Compared it to other mid-fi amplifiers, the FPB-300 is much more
musical. It has a lot of juice in the midrange, very relaxing, very smooth,
very rich, not dry (as many solid-state amps e.g. conrad-johnson, Ayre, McCormac...), tube-like,... Very deep and wide soundstage. Very good base.
A very good match with the netrual speaker like 801. This is the most musical
amplifier that I've ever auditioned. I was not able to do a direct A/B with
Levinsion 333 in my system. However, based on some auditioning on 331, I felt
Krell is a more musical amp. 331 sound cold and lean -- typical Levinson sound.

The Krell 300 amp is a great built product, but does not justify,at the listening level, the price tag. One can find "as good" sound
from such makers as Classe, Proceed, or McCormick. This amp
is no bargain, and your better off, at least for me, using the extra
money you might spend on a fad brand and invest it in your system.
The amp is given four stars for sound but 2 stars for price. Add up
the parts, folks, it does not equal the retail asked.

Powerful. Neutral. Effortless. The heart of the system. Pass is nice, CJ is pretty good, Levinson competes, Rowland is beautiful. But this Krell is like a Mercedes V8. Powerful, smooth and a blast to listen to.