Both Amps are Wyred4Sound; the pre is a BAT VK30SE
I took a look at the specs on those components.
Both W4S amps have the same gain, so that issue (no. 2 in my previous post) is ok.
Their input impedances are 60K, so two of them in parallel would have a combined input impedance of 30K, which is comfortably high in relation to the 300 ohm nominal output impedance of the BAT (even if the output impedance were to rise to 3000 ohms or so at deep bass frequencies, which is not uncommon among tube preamps). So you could split either the rca or xlr outputs using y-adapter cables (xlr y-adapters are available), to drive the two amps.
Both amps have extremely low output impedance, so item no. 5 in my previous post is a non-issue.
Because of the similarity between the amps, no. 3 in my previous post would seem unlikely to be an issue.
The cable capacitance issue can be avoided by using low capacitance cables, and/or avoiding long runs.
So the only potential issue, as I see it, is how much of the 570W amp's power you will be able to utilize. I would suggest contacting W4S and asking them if they can tell you what the internal voltage rails are for the two amps. If the numbers are not too different, I think you'll be fine.
Regards,
-- Al
