PASS LABS ALEPH-3

I want to buy this amp but have a couple of concerns.I currently have a stock Dynaco ST-70 and Paradigm studio80s with 92DB.I get all the volumn I want.Will I get at least as much volumn with the pass?I really would like a bit more actually.Next BIG concern.I get a low level hiss through my preamp phono section at 12 oclock which most likely tube rush.Is this because I have to push my low powered amt too hard?will the Pass eliminate this.Ive heard it plays louder than 30wpc says it should.