Both are Advance Paris, from different ranges - the engineering approach is shared and the differences are mostly in power, connectivity and price.
| Area | Better | Why |
|---|
| Power | B | Advance Paris A12 APEX has more power - 190W against 125W into 8 ohms. That is about 1.8dB, which is a small step in loudness but real headroom on peaks. |
| Grip on hard loads | evenly matched | Both behave much the same into 4 ohms - output increases strongly (186W and 292W). |
| Noise floor | evenly matched | Much the same signal-to-noise ratio (104dB vs 104dB). |
| Built-in DAC | evenly matched | Both have a DAC on board with much the same capability. |
| Room to grow | evenly matched | The same expansion options on both. |
| Room correction | A | Advance Paris NOVA A-i130 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 NOVA A-i130 takes up about 15% less shelf area (1728cm² against 2043cm²), and it is 72mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | B | Advance Paris A12 APEX costs less - $4,999 against $6,499 at list. |
| Watts per dollar | B | Advance Paris A12 APEX is the cheaper watt - about $26 per watt against $52. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Advance Paris NOVA A-i130 B Advance Paris A12 APEX
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?
Advance Paris A12 APEX 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.