I have a CS in Channel 1 and B9 in Channel 2. Love the CS pushed, but can't seem to get the B9 right. Question is...what amps are you guys using with your ZIM? I use it with a JCM800 and H&K....both EL34 based. Does the ZIM prefer certain amps? I have been through the TAR and VT cards and didn't really care for them.......is it a matter of just trying other cards?