I don't have any noise with my integrated amp and passive speakers. Do you mean noise as in hissing? I have Scarlett 2i2. It has some very slight hiss with my very sensitive IEMs in the headphone out but it's so low that even the lowest sounds will drown it out. In other words, not an issue.
To save time I am pasting a response I had in another thread. Sound is very personal. The best thing with HIFI is to buy it from a store that allows returns. Test it out.
'There is a point you reach as a HIFI person where upgrades are cool, but the diminishing returns start to factor in. Differences become less clear.
The place where you start to ponder if more soundstage will make things worse and make it sound unnatural. When the voices are so beautilful and crystal clear, making them clearer is overkill.
The Scarlett is so good I think this point has been reached for me. And I believe I am capable to determine this and recommend something to other HIFI people with a sensitivity to sound quality.
The Scarlett 2i2 sounds amazing, with it you reach the level you need with a DAC. The point at which I believe it is time to focus on other things. Like better speakers, where diminishing returns is less of a factor.
There is a business side of DACs where you gain market share and returns by dividing the target group by musicians and studio producers and consumer level HIFI nerds. It seems logical to me with my own senses and reading what other people say, that there is a lot of margin there in selling less quality for a premium price depending on market. To me the Scarlett proves this.
My FLC8n IEMs sound amazing with the Scarlett and loud at 40%. Proper. The only downside is that before 20% there is channel imbalance and the right side is just slightly lower in volume. Not an issue for me that makes me want to buy something else but an issue none the less.
With my passive speakers i run the volume on the Scarlett at 100% with no noticable distortion so far. Integrated amp for volume control. I imagine there is some room for improvement in the sound, but at this level it feels like nitpicking.'
Added note, this DAC is optimal with 32ohm headphones and below. Not higher.