BCM,I think you're making a mistake by taking the output of one preamp and connecting it to the input of another preamp. I'm just thinking this through and not talking down to you and welcome anyone's comments. Here's my thinking...The preamp takes a line level signal and amplifies it to enough voltage to be of use to an amp. If you connect one preamp to another, I think you are inputting more than line level into that second preamp (unless you have the first preamp's volume completely attenuated and what would be the point of that?), you're actually inputting into the second preamp the level needed by the amplifier portion and therefore are you are overdriving the second preamp it. This could explain the bad sound. Have you tried running both amps with just the preamp of the Jolida, yet?