I am using my Krell 280cd as a transport in my main system. I wanted to take it out and use it in a second system in order to upgrade there and make use of the Krell's DAC. I also wanted to take the upgraded power cable off to use else where. I have an older upper end Denon I was going to use as a transport in the Krell's place. This Denon must weigh 30 lbs. Well to my surprise, with the Denon in place the sound quality wasn't as good. All things were kept the same while listening, the volume didn't even change. With the Denon as a transport the music wasn't as snappy and the bass decreased. So this experience has put me in the camp that maintains there is a difference in sound between different transports. I was really hoping I wouldn't hear a difference. I really did not want to open this can of worms but this experience was quite a revelation for me.