A generation apart: Kanto TUK Grand is the newer design, against a 2019 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.
| Area | Better | Why |
|---|
| Bass | A | Kanto TUK Grand digs deeper - 40Hz against 50Hz. |
| Built-in power | evenly matched | Similar onboard amplification (160W vs 130W RMS). |
| Connections | B | Kanto TUK adds phono. |
| Size | depends | Kanto TUK is easier to place; Kanto TUK Grand is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Kanto TUK Grand: a sub output; Kanto TUK: a sub output. |
| Price | B | Kanto TUK is cheaper - $900 against $1,000, about 10% less. |
A Kanto TUK Grand B Kanto TUK
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?
Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 50Hz anyway, which makes the cheaper Kanto TUK much easier to justify. In a large or open-plan room, Kanto TUK Grand has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Kanto TUK 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.