Hi,
Thanks all for your positive feedback !
valankar : there is a big issue in Reason : it seems that a rack extension cannot have different latencies on different audio outputs.
SPEM has different latencies (you can get them in the
user manual) and they are already reported to Reason.
In serial mode : 0 sample (thru, channel 1), 64 samples (channel 2), 128 samples (channel 3), 192 samples (channel 4), 256 samples (main output).
In parallel mode : 0 sample (thru, channel 1 to 4), 256 samples (main output).
This is those latencies that SPEM reports to Reason (because Reason allows to define different latencies).
But Reason doesn't take care of them and takes only the first described, so 0 !!
I've chosen to tell the right values to Reason because I expect one day Reason will understand them.
I'm currently asking the developer support to see if I could do something else to solve this, and will come back to tell you what next.