I know the Infinity 7541a and the JBL GTO75.4 have them. I've had my eye on the JBL PX300.4, but it doesn't seem to have them. I'm really reluctant to use an input converter. Is there any other amps in this power range with high level input. An auxillary output would be a nice addition, but it's not necessary
I just looked up those items and they're quite a costly addition for my application. I've had some bad experiences with line converters in the past (granted they been much simpler cheaper product than those mentioned) so I kind of wanted to stray away from them. On the other hand I really do like all that I've read about the PX300.4 I may end up having to cave in.
For the prices of those products I'd be better off updating my deck to one with 2 low level outputs. But my search for my ideal amp will continue until I decide.