Ps68, I have 5 ft runs of HT Pro 9+ and HT Pro 9 Reference (2008). I have not been able to find out what was changed with the newest HT Pro 9 Reference SE (2009) - except of course that the name is too long :?)
I have tried using a double run with the Pro 9 Ref on top and the 9+ on the bottom, and also tried using that set-up with the negative connectors jumped to each other. Right now I am using a single run with the Pro 9 Ref to the bottom posts and jumpered with Luminous PCOCC wire to the top posts, and the sound is very good. The main difference is maybe just a touch less impact in the bass compared to the double run. I may try leaving the Ref on the bottom and the older Pro 9+ to the top MF/HF posts since I suspect the Pro 9 Ref may offer tighter bass than the older 9+.
Regarding HGA, they are not hyper-detailed, but clear and smooth for sure. They would likely control systems with boomy bass, and they are very coherent in the bass. I tried them doubled up on my LF posts and found an improvement in bass, so at least in my system, throwing more conductor area at the bass did improve things. I was considering making a double set with two runs to each bass post (10awg) and a single run to the MF/HF posts (13awg), but instead my next move may be to go with HT's magic cable line, which contain OCC copper as well as OCC silver solid core wires. My conclusions from a lot of listening are that I belive the OCC wire does make a positive difference compared to more standard forms of copper, and that I prefer individually insulated solid core wire to stranded wire.
I have tried using a double run with the Pro 9 Ref on top and the 9+ on the bottom, and also tried using that set-up with the negative connectors jumped to each other. Right now I am using a single run with the Pro 9 Ref to the bottom posts and jumpered with Luminous PCOCC wire to the top posts, and the sound is very good. The main difference is maybe just a touch less impact in the bass compared to the double run. I may try leaving the Ref on the bottom and the older Pro 9+ to the top MF/HF posts since I suspect the Pro 9 Ref may offer tighter bass than the older 9+.
Regarding HGA, they are not hyper-detailed, but clear and smooth for sure. They would likely control systems with boomy bass, and they are very coherent in the bass. I tried them doubled up on my LF posts and found an improvement in bass, so at least in my system, throwing more conductor area at the bass did improve things. I was considering making a double set with two runs to each bass post (10awg) and a single run to the MF/HF posts (13awg), but instead my next move may be to go with HT's magic cable line, which contain OCC copper as well as OCC silver solid core wires. My conclusions from a lot of listening are that I belive the OCC wire does make a positive difference compared to more standard forms of copper, and that I prefer individually insulated solid core wire to stranded wire.