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 | NAD Masters Series M10 V2 has more power - 100W against 75W 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 Audiolab 8300A the better fit for a small room, and NAD Masters Series M10 V2 for a large room and a very large room. Match the amplifier to the room you actually have, not the one you want. |
| Grip on hard loads | A | Audiolab 8300A holds up better into a 4-ohm load: its output increases strongly to 115W, where the other barely increases. That matters with demanding speakers far more than the 8-ohm figure does. |
| Noise floor | A | Audiolab 8300A is the quieter design on paper - 107dB against 90dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | B | NAD Masters Series M10 V2 has a DAC on board; the other needs an external one, which is another box, another power lead and another purchase. |
| Streaming | B | Only NAD Masters Series M10 V2 has AirPlay 2, Roon and BluOS. |
| Analogue inputs | A | Audiolab 8300A takes more analogue sources - 4 against 2. |
| Phono stage | depends | Audiolab 8300A has a built-in phono stage (MM) and NAD Masters Series M10 V2 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. |
| Amplifier class | depends | Audiolab 8300A is Class A/B and NAD Masters Series M10 V2 is Class D. Class A/B runs warm and is the long-established mainstream choice; Class D runs cool and draws almost nothing at idle. Modern examples of both measure well - judge by the rest of the page. |
| Shelf space | depends | NAD Masters Series M10 V2 takes up about 59% less shelf area (606cm² against 1465cm²), and it is 52mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | A | Audiolab 8300A costs less - $1,699 against $2,999 at list. |
| Watts per dollar | A | Audiolab 8300A is the cheaper watt - about $23 per watt against $30. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Audiolab 8300A B NAD Masters Series M10 V2
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?
Audiolab 8300A has the edge on paper, though not by much. The rows marked "depends" are more likely to decide this than the score is. If your speakers are a difficult load - 4 ohms nominal, big woofers, or a sensitivity in the low 80s - Audiolab 8300A is the safer partner, because how an amplifier behaves when the impedance drops matters more than its 8-ohm rating. If you play records, Audiolab 8300A 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.