Different price classes - Marantz PM6007 costs roughly 1.8x what NAD C316BEE V2 does. Expect it to lead on paper; the question is whether you will hear the difference through the speakers you own.
| Area | Better | Why |
|---|
| Power | evenly matched | Effectively the same output - 40W against 45W into 8 ohms is under 1dB, which is not an audible difference in loudness. |
| Room size | depends | We rate NAD C316BEE V2 the better fit for desk or near-field listening, and Marantz PM6007 for a very large room. Match the amplifier to the room you actually have, not the one you want. |
| Grip on hard loads | B | Marantz PM6007 holds up better into a 4-ohm load: its output increases modestly to 60W, where the other barely increases. That matters with demanding speakers far more than the 8-ohm figure does. |
| Bass control | A | NAD C316BEE V2 has the higher damping factor (200 vs 100), which usually means a tighter grip on a woofer. Above about 100 the returns flatten out, so read this as a tendency rather than a ranking. |
| Noise floor | B | Marantz PM6007 is the quieter design on paper - 102dB against 95dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | B | Marantz PM6007 has a DAC on board; the other needs an external one, which is another box, another power lead and another purchase. |
| Analogue inputs | A | NAD C316BEE V2 takes more analogue sources - 5 against 4. |
| Room to grow | B | Only Marantz PM6007 offers preamp outputs - which decides whether you can add a subwoofer or a power amplifier later without replacing the box. |
| Shelf space | depends | NAD C316BEE V2 takes up about 29% less shelf area (1253cm² against 1764cm²), and it is 111mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | A | NAD C316BEE V2 costs less - $499 against $899 at list. |
| Watts per dollar | A | NAD C316BEE V2 is the cheaper watt - about $12 per watt against $20. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A NAD C316BEE V2 B Marantz PM6007
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?
Marantz PM6007 is ahead, but on only 1 of the measured areas, and it costs about 80% more. That is a lot of money for a narrow margin - NAD C316BEE V2 is the sensible buy unless a specific feature above decides it for you. If your speakers are a difficult load - 4 ohms nominal, big woofers, or a sensitivity in the low 80s - Marantz PM6007 is the safer partner, because how an amplifier behaves when the impedance drops matters more than its 8-ohm rating. If you already own a DAC or a streamer, the built-in one is money you are paying twice for, and NAD C316BEE V2 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.