Woofer Flutter

KAB Rumble Filter, $179.95.  Best investment I have made. No more woofer fluttering.  Designed with all audiophile grade parts. 

        Didn't see a processor loop (or any other option), available in the 7900, in which the KAB could be inserted.   

                                But: I could be wrong.

Is a slight amount bad for speakers (mine are Wilson Sophia 1)? ... Sound is not affected.

Asked and answered.

I've only had  the 7900 for a week, so I can work on some adjustments with it, like the equalizer settings. Another thing is I have the cart setting on MC, but my cart is a Hana SH (high output).  It's recommended that it be set on MM, so I'll try that.

How do you have the MC option set? Have you played with the settings?
Macs phono stage? I have a few... They have a few options and ways to change things through the years including load plugs. Inline RCAs, Herron, Decware, and a few others make them..

Older ones.. Great filters.. Even a MX110z had great filters.. MM and MC.

Options below make it pretty easy..

https://store.acousticsounds.com/d/60043/DB_Systems-DB_Systems_DBP-6_Phono_Capacitor_Loading_Kit-Any

You would think after keeping the phono stage in most of their units. Mac would leave the rumble filters in place.
I have to look I don't have to use them. Currently.. Things change though.. I though the C2500 had filters, that's pretty new..

Regards