Downloaded the Cenzo Townshend free IR pack, and was going to ask a question here regarding which sample rate file would be ideal to use. Then I got my lazy butt to open the owner's manual pdf (exhausting, I know) and found this. Thought I'd leave this here in case any other newbies like me download this pack and aren't sure of the IR geek specs. Cheers!
"The Helix app updates the Helix hardware's IR list automatically. Helix can load and store up to 128 IRs at a time. 48kHz, 16-bit, mono, .WAV type IRs of up to 2,048 samples are natively supported. But the Helix app allows you to import IR .WAV files of different sample rate,bit depth,length and stereo format,and the app will convert these attributes automatically before sending to the Helix hardware."