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RE: Op Amp question OPA2134 substitution

I appreciate your response
the 50hz bump was not from the subs but from the mains sorry if I did not make this clear. These measurements are with TrueRTA and a Bheringer mic.
When I started using the high pass on the mains most of the 50hz bump was eliminated. The XM9 is working great except of the added harshness to upper mids and highs that are not there when I do not use high pass on the mains, but I lose control of the bass. I can work on the PS as suggested to see if that helps.
Thanks
So it goes.........


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