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RE: Magnepan LRS with two 1x12 OB subs and dspNexus 2/8 DSP control center

A couple questions ... how are the GR drivers used without the servo? Are there better choices for a non-servo 12" in an H-frame? I built a 3X recently and tested response with the servo amp and three settings, vs a non-servo amp and I could see a definite difference in the impulse response (I used a miniDSP to get close to the shelf filter). But I didn't do listening tests.

Also ... folks tend to put Norez on the inner surfaces of the H-frame. I couldn't convince myself that the mass of Norez would make a difference relative to a 100lb MDF cabinet. I didn't see any anomalies in an outdoor ground plane measurement ... dead flat ... so can there be audible resonances in an MDF H-frame cabinet?

Thanks!
Agilist, Musician, Photographer, Audiophile
7.1.4 Magneplanar: 3.7, CCR, LRS, MC1(4), DWM(2); Emotiva B1+; GR Research OB Dipole Subs (2x3); Emotiva XMC-2; Nord One NC500DM; Nord Three 1ET7040SA; VTV NC502MP; Crown XLi800;OPPO 205

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