Yes the first clip is the Egnater. All of them are except post #17.
it does have a boost in front, using the EHX East River Drive.
This amp is not hissy or fizzy. It's pretty decent. You can find them once in awhile on the used market.
I made a video awhile back with a few different speakers to listen to their voices. I also love the K100s. They kick!
I have all the centers of speakers marked on the grille, so it's pretty close to scientific ha ha ha