Siblings in Definitive Technology's DW series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass | B | Definitive Technology DW MAX SUR digs deeper - 34Hz against 56Hz. |
| Amplifier needs | B | Definitive Technology DW MAX SUR is more sensitive (89dB vs 85dB), so it goes louder on the same amplifier. |
| Amplifier match | A | Definitive Technology DW 65 MAX is the easier load at 6 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Size | depends | Definitive Technology DW 65 MAX is easier to place; Definitive Technology DW MAX SUR is bigger, which usually goes with fuller bass. Your room decides. |
| Price | A | Definitive Technology DW 65 MAX is cheaper - $958 against $1,358, about 29% less. |
A Definitive Technology DW 65 MAX B Definitive Technology DW MAX SUR
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 speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Definitive Technology DW MAX SUR is ahead, but only on 1 of the measured areas, and it costs about 42% more. That is a lot of money for a narrow margin on paper - Definitive Technology DW 65 MAX looks like the sensible buy unless something else about the Definitive Technology DW MAX SUR appeals to you. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 56Hz anyway, which makes the cheaper Definitive Technology DW 65 MAX much easier to justify. In a large or open-plan room, Definitive Technology DW MAX SUR has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Definitive Technology DW 65 MAX is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.