@ mikekollar
I also have a C9 and I've compared the two processors. I prefer the BSG because the effect covers a wider listening area. You can be sitting a couple feet to either side and you still get the soundstage effect with the BSG but with the Carver you have to be right in the sweet spot. When you are in the right position, the Carver has a somewhat greater effect than the BSG. For everyday listening I like the effect of the BSG somewhat better but the Carver is an excellent processor.
The BSG designer was sketchy about exactly how the processor works but apparently it separates the music into separate bands and applies the phase modification (or whatever) differently to each band. It's a pain to compare the processed signal to the bypassed signal because the processor adds several db of volume which is one feature I definitely don't like. There is some decent information in the review articles but they don't really explain how it works.
On a side note, I heard a demo of Synergistic tweaks at the 2018 AXPONA and was blown away by their Atmosphere thingy (the speakers were upper-end Magicos). It is a narrow square column that sits between and behind the speakers. I couldn't hear any difference from the HFT gizmos but when he turned off the Atmosphere the soundstage collapsed. I can't understand how it works from looking at their website but it certainly had a noticeable positive effect.
I also have a C9 and I've compared the two processors. I prefer the BSG because the effect covers a wider listening area. You can be sitting a couple feet to either side and you still get the soundstage effect with the BSG but with the Carver you have to be right in the sweet spot. When you are in the right position, the Carver has a somewhat greater effect than the BSG. For everyday listening I like the effect of the BSG somewhat better but the Carver is an excellent processor.
The BSG designer was sketchy about exactly how the processor works but apparently it separates the music into separate bands and applies the phase modification (or whatever) differently to each band. It's a pain to compare the processed signal to the bypassed signal because the processor adds several db of volume which is one feature I definitely don't like. There is some decent information in the review articles but they don't really explain how it works.
On a side note, I heard a demo of Synergistic tweaks at the 2018 AXPONA and was blown away by their Atmosphere thingy (the speakers were upper-end Magicos). It is a narrow square column that sits between and behind the speakers. I couldn't hear any difference from the HFT gizmos but when he turned off the Atmosphere the soundstage collapsed. I can't understand how it works from looking at their website but it certainly had a noticeable positive effect.