DanMan...I don`t know what the difference is, sorry.
As a back story...
I had a very nice Rogue tube amp that sounded really nice but I needed more power for my speakers so I got the SDS 470 as a stop-gap till I could find a tube amp/amps that would do the job.
I was so impressed from the very start with the Class D Audio that I`ve put a hold on the amp end and am looking in other areas to improve on.
I know I didn`t answer your question, just trying to help in some way :)
Steve
As a back story...
I had a very nice Rogue tube amp that sounded really nice but I needed more power for my speakers so I got the SDS 470 as a stop-gap till I could find a tube amp/amps that would do the job.
I was so impressed from the very start with the Class D Audio that I`ve put a hold on the amp end and am looking in other areas to improve on.
I know I didn`t answer your question, just trying to help in some way :)
Steve