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 | B | Rotel RA-1592 MKII has more power - 200W against 150W into 8 ohms. That is about 1.2dB, which is a small step in loudness but real headroom on peaks. |
| Room size | depends | We rate Hegel A200 the better fit for desk or near-field listening, a small room and a mid-size room, and Rotel RA-1592 MKII for a very large room. Match the amplifier to the room you actually have, not the one you want. |
| Speaker load rating | A | Hegel A200 is rated down to 2 ohms against 4, so it is the safer partner for a low-impedance speaker. |
| Noise floor | B | Rotel RA-1592 MKII is the quieter design on paper - 103dB against 100dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | B | Rotel RA-1592 MKII has a DAC on board; the other needs an external one, which is another box, another power lead and another purchase. |
| Analogue inputs | evenly matched | The same number of line-level inputs (4). |
| Room to grow | evenly matched | The same expansion options on both. |
| Price | B | Rotel RA-1592 MKII costs less - $3,200 against $3,995 at list. |
| Watts per dollar | B | Rotel RA-1592 MKII is the cheaper watt - about $16 per watt against $27. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Hegel A200 B Rotel RA-1592 MKII
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?
Rotel RA-1592 MKII is the easier recommendation: it leads on most of the measured areas and costs less. Take Hegel A200 if one of the "depends" rows above describes your system. If you already own a DAC or a streamer, the built-in one is money you are paying twice for, and Hegel A200 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.