802 speakers want a lot of current to perform well and can present a difficult load for some amplifiers. I tried several amplifiers with my 802s and finally found one that will deliver the current required.
You can easily tell when the amplifier is not providing enough current to drive the speakers properly. Use a piece of music you're familiar with that has a lot of instruments with passages where the music has a series of crescendos.
An example would be the Andre Previn version of "Rhapsody in Blue." What you will notice is the sound stage collapse and the crescendos becoming less and less dynamic. The power supply cannot provide the current needed in the output section of the amplifier to sustain the repeated demands of the music.
I'm not familiar with the Krell amplifier you have so I cannot make any judgment on its ability to drive the 802s. The amplifier I use has completely separate amplifiers and power supplies for each channel in single chassis. In this configuration, a channel cannot rob the other channel of the current needed to sustain the musical demands.
The 802s are very good speakers and will provide accurate and dynamic music reproduction once paired with an amplifier capable of meeting the current demands and Ohm loads presented by the speakers.