M6 Mark II external stereo mic input unbalanced

[NickMDal]

Hi.  I'm using an external Diety D4 DUO mic and the left audio gain is much higher than the right.  -18dB vs -5dB

It's set to Auto.  Setting to Manual doesn't change this and there is no balance setting.

I tested the mic on a Canon XF605 mic input and monitored the headphone output.  Sound was perfectly balanced.

Any other way to troubleshoot this?  Below in Davinci Resolve, the right was raised to sound as loud.  You can see the baseline noise.  It sounds hissy on the right. 

[NickMDal]

Here is a screenshot from Davinci Resolve.  The right channel is quite noisy in the waveform and sounds hissy compared to a clean left.  Wifi, Bluetooth and GPS are all off.

I raised the right gain in DR to sound as loud as the left. 

[jaewoosong]

do keep in mind that this mic is front/rear configuration vs standard stereo left/right.  so if your audio direction is coming from the front, the front mic will be louder than the rear mic.  Are you also sure that you use the TRS->TRS vs the TRS-TRRS cable?  You should be using the former cable (for your canon) vs the latter cable (for cell phones).  If you mistakenly used the latter cable, you might get poor connection and/or hissing.

[NickMDal]

Thanks for replying. The cable is TRS since the mic is only stereo and so is compatible.  When played through a Canon xf605, stereo audio is perfectly balanced.  Could this be the a/v converter gone bad?