I don’t see any problem. The input impedance of that amp is a high 100K! BTW, you don’t need to be an electrical engineer to do the math! Input impedance of amp should be at least 10 times the output impedance of preamp!
Subwoofer and preamp output impedance
I'm looking to add two SVS subs with Y splitters from my pre outs. My Cary SLP-50 preamp has an output impedance of 1200 Ohms and my Bottlehead Kaiju 300b amp has an input impedance of 100k. Both values are nominal, and I found no info about impedance at sub frequencies. My question for the electrical engineers out there: Would the use of Y splitters create a noticeable bass roll off (or any other unwanted side effects) in the subs? The main speakers are Klipsch Forte II's. Thanks in advance. Dave.