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 | A | Cambridge Audio Evo 75 has more power - 75W against 50W into 8 ohms. That is about 1.8dB, which is a small step in loudness but real headroom on peaks. |
| Room size | depends | We rate Cambridge Audio Evo 75 the better fit for a mid-size room, a large room and a very large room, and HiFi Rose RS201E for desk or near-field listening and a small room. Match the amplifier to the room you actually have, not the one you want. |
| Grip on hard loads | A | Cambridge Audio Evo 75 holds up better into a 4-ohm load: its output nearly doubles to 150W, where the other barely increases. That matters with demanding speakers far more than the 8-ohm figure does. |
| Built-in DAC | B | Both decode on board, but only HiFi Rose RS201E handles MQA. |
| Streaming | A | Only Cambridge Audio Evo 75 has AirPlay 2 and Chromecast. |
| Analogue inputs | evenly matched | The same number of line-level inputs (1). |
| Room to grow | evenly matched | The same expansion options on both. |
| Shelf space | depends | HiFi Rose RS201E takes up about 44% less shelf area (672cm² against 1190cm²), and it is 132mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | B | HiFi Rose RS201E costs less - $2,195 against $2,499 at list. |
| Watts per dollar | A | Cambridge Audio Evo 75 is the cheaper watt - about $33 per watt against $44. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Cambridge Audio Evo 75 B HiFi Rose RS201E
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?
Cambridge Audio Evo 75 leads across most of the measured areas for a fairly modest premium, so it is the easier pick if the budget stretches. HiFi Rose RS201E is the one to take if it does not. If your speakers are a difficult load - 4 ohms nominal, big woofers, or a sensitivity in the low 80s - Cambridge Audio Evo 75 is the safer partner, because how an amplifier behaves when the impedance drops matters more than its 8-ohm rating.
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.