The Full Power Balanced X Series Stereo Amplifiers offer the greatest performance possible from a stereo amplifier. All X Series amplifiers share the same circuit topology, from the 300 Watt Full Power Balanced 300cx and the mid-level FPB 400cx at 400 Watts, to the awesome 700 Watt FPB 700cx, the most powerful stereo amplifier ever offered by Krell. While the amplifiers have much in common, there are also some.

Full Power Balanced X Series Stereo Amplifiers, continued...

important reasons for investing in the additional power. Each amplifier houses a massive power supply, doubling in size with each step. When the power increases from 300 Watts to 400 Watts and 700 Watts, the power supplies increase from 2000 Watts to 4000 Watts to 8000 Watts, respectively. While intuitively one might think that the only benefit of additional power from the same electrical design is the ability to play louder, the huge power supplies in the X Series provide empirical evidence that says the amplifiers do much more. More power delivers more authority on the low end, greater ease through the critical midrange frequencies, and effortless highs. In short, with every significant increase in power, there is a palpable increase in the believability of the sonic presentation.

The direct descendants of the awesome Master Reference Amplifier, the new Full Power Balanced X Series Amplifiers extend the Krell technologies of Sustained Plateau Bias and CAST. These advancements, now termed Sustained Plateau Bias III and CAST II, have increased the power output capability and bandwidth of the Full Power Balanced amplifier platform. All Krell Full Power Balanced X Series amplifiers also include the array of engineering advances that have made Krell the premier amplifier manufacturer in the world.

Class A output, the most linear and accurate topology for an audio power amplifier
Balanced topology for the lowest noise and greatest detail retrieval from a recording
Massive power supplies for complete dominance of a speaker
Fully regulated power supply and output stage operation for stability under all power line and speaker fluctuations
Virtually unlimited power output to drive loudspeakers to their peak levels of performance
In addition to these technologies, the new X Series increases the power to unprecedented levels, from the 300 Watt per channel Full Power Balanced 300cx Stereo Amplifier to the incredible 750 Watt per channel monaural amplifiers, the Full Power Balanced 750Mcx Monaural Amplifiers. The new X Series offers three stereo amplifiers and three monaural amplifiers, allowing the user to select the combination which best meets their stereo, multi-channel audio, or movie needs.