Input impedance of the Odyssey Stratos Dual Mono

Does any know what this number is? Thanks. Dave
With the dual mono at 10K at input and the following for my ARC SP16L, is this a mismatch? Can the ARC be tweaked to get into the right range? I understand that the ratio should be 1:10 (preamp to amp) for optimum performance and lowest noise. Thanks.

ARC SP16L OUTPUT IMPEDANCE: 260 ohms Single Ended main; 20K ohms minimum load and 1000 pF maximum capacitance. Outputs (3): 2 main, 1 record (Single Ended RCA connectors