Detail 01
14-inch shell depth
Keeps the same shell depth used across the Quantum Mark II bass-drum sizes.

Independent shopping perspective
Purpose-built for an 18-inch marching bass-drum voice, this Quantum Mark II pairs a six-ply maple shell with birch reinforcement rings and SONIClear bearing edges. The design lets the heads sit flatter against the shell for the warm, resonant response described by Mapex, while size-specific venting keeps sustain more controlled. Externally adjustable eyebolts make player-height changes possible without taking off the heads, useful when fitting the drum within an ensemble. Blue Ripple wrap, aluminum hoops, and chrome hardware give it a coordinated field-ready appearance.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Keeps the same shell depth used across the Quantum Mark II bass-drum sizes.
Detail 02
Height can be adjusted without removing the drumheads.
Detail 03
The venting is intended to produce a focused tone with attenuated sustain.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. The externally adjustable eyebolts allow height changes without removing the drumheads.
It is specified with Remo UM Smooth White heads carrying the Mapex logo.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.