NRJ4HH or NRJ6HH?

[ltmon]

I'm pretty sure I need to get the stereo option.

However, just pointing out the wiki (at https://github.com/Ixox/preenfm3/wiki/Build) says "Neutrik NRJ4HH * 6 (audio jack)", wheras the Google Sheets BoM says NRJ6HH. Maybe this should be clarified?

[lokki]

Preenfm3 has six individual outputs, which are all mono. So you should buy the mono version, the stereo will not fit onto the PCB (since it has more pins)

[ltmon]

Thanks Loki:

But the 6-pin version does fit on the PCB (see https://github.com/Ixox/preenfm3/wiki/build/pfm3_pcbs.jpg). Possibly it's mono, but the PCB is just mechanically constructed to allow either?

[lokki]

Interesting... I have an older revision board 1.2. where stereo jacks are not possible. So maybe better to have a word from @Xavier about this... Probably stereo jack is just allowed on the new boards, and the third pin not connected or connected to ground.

[Xavier]

Sorry to be late on this one as it's quite important.
Yes in new board versions,  stereo jack can be used and that allows jacks 2,4 and 6 to be stereo when respectively 1,3 or 5 are not plugged in.
Can be usefull in some situation.

I'll update the doc. Thanks

[ltmon]

Thanks Xavier, appreciated.