m7 Full Voicing

R – ♭7 – ♭3 – 5

Prove it — just do the practice exercise.
Dm7 Full Voicing
D (R)C (♭7)F (♭3)A (5)
Full Voicing for Minor 7:

• R – ♭7 – ♭3 – 5

Minor 3rd and minor 7th combined = soft minor sound.

Example: Dm7 Full = D + C + F + A