Class D amps that are superior to all or most?
There's a new review for the Technics SU-R1000 by Andrew Robinson over on YouTube: https://www.youtube.com/results?search_query=technics+su-g1000 He thinks very highly of it as well as the lesser powered SU-G700, which I've been eyeing for awhile. All the best, Nonoise |
Douglas Schroeder, Where did the information come from that you posted about the Legacy Ultra being a bridged amp using both channels on each stereo module in some kind of bridge? "a differential topology"? As far as I know, each channel is already bridged and has a differential input stage. You cannot bridge a bridge. Check this picture out of another guy who has this amp.....you will see all the channels on top have no wires connected to their output terminals. You can clearly see a black and red wire coming out of the bottom speaker output terminals. So, it looks like they just buy stereo modules and the "ultra" version is just using one side of each stereo module as a mono. If this is so, then what you have is stock IceEdge modules in a box (no fancy differential bridged circuit)....I could be wrong. You can buy a dual mono IceEdge amp from Rouge Audio Design and it can be delivered for a little over $1500....way, way less expensive than Legacy. I worked on the IceEdge modules for 6 months making them sound way better.....and also using super AC inlet, wire and my binding post bypass system. I can improve any IceEdge based amp the same way.....way better sound for very little money. Stock IceEdge is OK but modded it is more pure and dynamic. https://systems.audiogon.com/systems/5078#&gid=1&pid=11 Go to picture 11 and if you click on it once open, it will enlarge. |
I am waiting on a Class D amp that will sound as good as my AHB2 monos but have much more power (2 Ohm). I was hoping that Purifi would release a second generation amp module but looking at their web site it seems they have moved onto driver design. I have a D-Sonic M3a 800s Class D amp (Pascal module) + CODA 07x preamp on the floor standers that the AHB2 previously drove. It is a better power match but I still think the AHB2 is the best amp I ever heard. The AHB2 is the quietest and cleanest amp I have ever heard. My AHB2 monos are now doing headphone duty with the CODA 07x preamp. A perfect combo for my RAAL SR1a headphones. |
