High Current SS amps with input impedance = 200K


I'm looking to identify amps like this that would match optimally to an Audio Research sp16 tube pre-amp with output impedance of ~ 20K?
128x128mapman
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New Krell EVO amps do have input impedance of 200 Kohm on balanced inputs. So if that is what you are looking for ...
Several newer class D amps have imput impedances in the 40K Ohms, including my JRDG 312. . . but the highest may be the Bel canto Ref 1000 Mk.2. It has raised its input impedance to 200K Ohms from the previous version, which was a respectable 20K Ohms already. R1000 Mk.2 handle my 6Ohms wabbly load Mahlers without any difficulties. Guido
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