We demonstrate an explicit numerical method for accurate calculation ofthe analytic continuation of the scattering matrix. describing the multichannelscattering by a quantum well. to the unphysical region of complexvalues of the energy. Results of calculations show that one or severalpoles of the S-matrix exist. https://www.roneverhart.com/ESP-LTD-SD-2-Sammy-Duet-Signature-Model-Electric-Guitar-Black-p20045/