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 |
|---|
| Power | A | Denon Home Amp has more power - 100W against 80W into 8 ohms. That is about 1dB, which is a small step in loudness but real headroom on peaks. |
| Built-in DAC | evenly matched | Both have a DAC on board with much the same capability. |
| Streaming | evenly matched | Only Denon Home Amp has HEOS and Pandora; only Bluesound POWERNODE N330 has Roon, BluOS and Qobuz. Neither list is longer in a way that matters - check the one service you actually pay for. |
| Room to grow | evenly matched | The same expansion options on both. |
| Shelf space | depends | Bluesound POWERNODE N330 takes up about 27% less shelf area (420cm² against 580cm²), and it is 76mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | A | Denon Home Amp costs less - $899 against $949 at list. |
| Watts per dollar | A | Denon Home Amp is the cheaper watt - about $9 per watt against $12. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Denon Home Amp B Bluesound POWERNODE N330
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?
Denon Home Amp has the edge on paper, though not by much. The rows marked "depends" are more likely to decide this than the score is.
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.