One is a streaming all-in-one and the other is an amplifier. Judge them on how many boxes you want and what you already own, not on the spec sheet alone.
| Area | Better | Why |
|---|
| Power | B | Bluesound POWERNODE has more power - 80W against 50W into 8 ohms. That is about 2dB, so it plays usefully louder before it runs out and has more in hand on peaks. |
| Room size | depends | We rate PS Audio Sprout100 the better fit for desk or near-field listening and a small room, and Bluesound POWERNODE for a mid-size room, a large room and a very large room. Match the amplifier to the room you actually have, not the one you want. |
| Noise floor | evenly matched | Much the same signal-to-noise ratio (100dB vs 100dB). |
| Built-in DAC | evenly matched | Both have a DAC on board with much the same capability. |
| Streaming | B | Only Bluesound POWERNODE has AirPlay 2, Roon and BluOS. |
| Analogue inputs | evenly matched | The same number of line-level inputs (2). |
| Phono stage | depends | PS Audio Sprout100 has a built-in phono stage (MM) and Bluesound POWERNODE 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. |
| Room to grow | evenly matched | The same expansion options on both. |
| Shelf space | depends | PS Audio Sprout100 takes up about 22% less shelf area (329cm² against 420cm²). |
| Price | A | PS Audio Sprout100 costs less - $799 against $949 at list. |
| Watts per dollar | B | Bluesound POWERNODE is the cheaper watt - about $12 per watt against $16. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A PS Audio Sprout100 B Bluesound POWERNODE
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?
Bluesound POWERNODE leads across most of the measured areas for a fairly modest premium, so it is the easier pick if the budget stretches. PS Audio Sprout100 is the one to take if it does not. Start with the room. In a large or open-plan room, or with speakers that are hard to drive - low sensitivity, or an impedance that dips - Bluesound POWERNODE has the headroom, and headroom is what stops an amplifier hardening up on peaks. At desk distance or in a small room, 50 watts is already more than most people ever use, and the extra 30 watts would be headroom you pay for and never hear - we rate Bluesound POWERNODE poorly for near-field use for exactly that reason. If you play records, PS Audio Sprout100 saves you buying a phono stage; if you do not, ignore that row entirely.
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.