I still have my Carver pre-amp with sonic holography around as a spare.
Agree about the ups and downs with sonic holography. I bought the Carverand used it primarily with Magneplanars back in the eighties. The Walsh 2s I also owned never seemed to benefit, nor the newer OHMs that I tried it with a while back just to see (hear).
The down that often ruined SH for me (other than the small sweet spot) was that I noticed it almost always tended to degrade the authority in the low end as a side effect of opening things up.
Agree about the ups and downs with sonic holography. I bought the Carverand used it primarily with Magneplanars back in the eighties. The Walsh 2s I also owned never seemed to benefit, nor the newer OHMs that I tried it with a while back just to see (hear).
The down that often ruined SH for me (other than the small sweet spot) was that I noticed it almost always tended to degrade the authority in the low end as a side effect of opening things up.