Robin Gareus http://gareus.org/
0 Pedalboard using it

LV2 Convolution Mono=>Stereo

Plugin screenshot

Zero latency True Stereo Signal Convolution Processor; 2 signals, 4 chan IR (L -> L, R -> R, L -> R, R -> L)

Control Default Min Max
http://gareus.org/oss/lv2/convoLV2#MonoToStereo v.0:4.0-5