No single best amplifier here. What decides it is what you have to drive, what you need to plug in, and how much of the system you want in one box.
| Area | Better | Why |
|---|
| Speaker load rating | A | Eversolo AMP-F2 is rated down to 2 ohms against 4, so it is the safer partner for a low-impedance speaker. |
| Built-in DAC | B | Denon PMA-900HNE has a DAC on board; the other needs an external one, which is another box, another power lead and another purchase. |
| Analogue inputs | B | Denon PMA-900HNE takes more analogue sources - 3 against 2. |
| Phono stage | depends | Denon PMA-900HNE has a built-in phono stage (MM,MC) and Eversolo AMP-F2 does not. Decisive if you own a turntable, completely irrelevant if you do not - and an outboard phono stage is easy to add later either way. |
| Headphones | depends | Only Denon PMA-900HNE has a headphone output. Worth something if you listen late, nothing if you never do. |
| Amplifier class | depends | Eversolo AMP-F2 is Class D and Denon PMA-900HNE is Class A/B. Class D runs cool and draws almost nothing at idle; Class A/B runs warm and is the long-established mainstream choice. Modern examples of both measure well - judge by the rest of the page. |
| Shelf space | depends | Eversolo AMP-F2 takes up about 70% less shelf area (505cm² against 1710cm²), and it is 206mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | A | Eversolo AMP-F2 costs less - $799 against $949 at list. |
A Eversolo AMP-F2 B Denon PMA-900HNE
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both amplifiers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
The usual trade-off: Denon PMA-900HNE measures better, Eversolo AMP-F2 costs about 16% less. With most speakers in most rooms that gap is smaller in practice than it looks here. If you play records, Denon PMA-900HNE saves you buying a phono stage; if you do not, ignore that row entirely. If you already own a DAC or a streamer, the built-in one is money you are paying twice for, and Eversolo AMP-F2 becomes the more rational buy.
What a spec sheet cannot show: how either sounds with your speakers, how the controls feel day to day, and what the app is like to live with - which is where most all-in-one amplifiers are actually won or lost. Power figures are the manufacturers' own and are not measured to a common standard, so treat small differences as noise. If you can hear both, that will tell you more than any row above.