gain matching is all about running out of headroom at the same time. If you have plenty of headroom to spare, then level matching especially when it sets the actual gain pretty close is more than good enough. I’m assuming there is little variance between the gain knobs on Rythmik subs and if you’re using the same model subs, then you should be able to eye ball it pretty easily to set the gains close. Anything fishy in the mini-DSP? Are all settings linked between the two subs?Will try, only went with 2db difference with the "good" sub and I stopped because it was loud enough.
Just tried, with the other sub I can go till -4 MV till the limiter kicks in (green light blinks), driver is not making any clunking sound.
So one sub can go 6 db louder with no clunking and the limiter kicking in.
On the "clunking" sub I have the clunking sound at -10db MV and green light is steady (no limiter).
I understand the importance of gain matching but all my previous subwoofers where in the same location with each exactly the same gain on the amp and when measuring with audessy they where always 0,5 dB close to each other. Subs are equal distance parallel to each other. Left and right wall about 2 meters from MLP.