Wolf in sheep's clothing
The HM-2d is a precision-made large diaphragm condenser microphone, but it's voiced more like some of the big dynamic mics orignally used in broadcasting. It doesn't sound "just like" these mics but it has a similar smooth punchy character instead of a "peaky" sound.
Deeper body design
The HM-2d features a specially designed capsule pedestal that minimizes diffraction effects and effectively dampens body resonances. Most low-cost microphones produce an audible "ping" when you tap them. This extra sound makes its way into your recordings. The HM-2d makes a hollow dead sound when you tap it. Remember: a microphone is supposed to transduce music, not make it.