I owned the KR VT6000 for awhile. It has a lot of power, enough to drive about anything. Bass is what the KR amps do best. But don't expect a typical tube sound from the "vacuum transducer". The VT6000 can be a little hard and sterile sounding in some cases. The other cavaet is that the tubes are sealed, and have to be replaced by a factory tech. And they do go bad. Shipping can get very expensive. There was no KR US service when I owned mine, so I had to send it back to Prague for $1000. shipping both ways. I've owned other KR products that were trouble free, but this one was a bad experience for me.
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