I think I must add WARNING: current SSRC implementation is buggy. (http://www.hydrogenaudio.org/forums/index.php?showtopic=66107&view=findpost&p=590201) There are some combinations of quality setting/input samplerate/output samplerate when SSRC produces clicks. So make sure that your settings are unaffected.
(Or use another resampler )
Also, I found foo_dsp_ssrcX.dll plugin here: http://foobar2000.xrea.jp/up/files/up881.zip (http://foobar2000.xrea.jp/up/files/up881.zip)
It is based on SSRC code.