These are not the same size of amplifier: Advance Paris NOVA A-i190 has roughly 2.4x the power of Advance Paris A8 APEX. That is about 3.9dB, so it is a question of room size and how hard your speakers are to drive, not of one being the better amplifier.
| Area | Better | Why |
|---|
| Power | B | Advance Paris NOVA A-i190 has more power - 185W against 76W into 8 ohms. That is about 3.9dB, so it plays usefully louder before it runs out and has more in hand on peaks. |
| Grip on hard loads | evenly matched | Both behave much the same into 4 ohms - output increases modestly (110W and 276W). |
| Noise floor | B | Advance Paris NOVA A-i190 is the quieter design on paper - 105dB against 100dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | evenly matched | Both have a DAC on board with much the same capability. |
| Room to grow | B | Only Advance Paris NOVA A-i190 offers preamp outputs - which decides whether you can add a subwoofer or a power amplifier later without replacing the box. |
| Room correction | B | Advance Paris NOVA A-i190 has room correction (Manual DSP EQ: measure in REW with your own mic, load the file by USB). In an awkward room that does more for the sound than any other difference on this page. |
| Shelf space | depends | Advance Paris A8 APEX takes up about 23% less shelf area (1660cm² against 2165cm²), and it is 117mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | A | Advance Paris A8 APEX costs less - $2,999 against $7,999 at list. |
A Advance Paris A8 APEX B Advance Paris NOVA A-i190
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: Advance Paris NOVA A-i190 measures better, Advance Paris A8 APEX costs about 63% less. With most speakers in most rooms that gap is smaller in practice than it looks here. 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 - Advance Paris NOVA A-i190 has the headroom, and headroom is what stops an amplifier hardening up on peaks. At desk distance or in a small room, 76 watts is already more than most people ever use, and the extra 109 watts would be headroom you pay for and never hear. Think about the whole system: the roughly $5,000 saved by taking the cheaper one would buy better speakers or a subwoofer, which does more for the sound than the difference between two competent amplifiers.
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.