The Cascade DR-2 is a passive, dual-ribbon design with a symmetrical figure-of-8 pickup pattern. Unlike offset ribbon designs, this microphone produces equal (but out-of-phase) response from the front and back sides of the motor, making it useful as the “side” channel in a mid-side setup, or within a Blumlein array.
The ribbons are corrugated aluminum measuring 1.5'' in length and 0.15'' in width, mounted parallel 5/8'' apart. The design intent of using two ribbons is to increase sensitivity,
The ribbon motors are housed within a mesh grille. The mic provides no other screening or blast filtering, which likely has the benefit of reducing unwanted resonance but does expose the ribbon elements to contamination. The use of a pop filter when tracking vocals is recommended.
The frequency response is slightly elevated from 40Hz to 100Hz, flat through 4000Hz, and rolls off through 15,000Hz.
Type: Dual Ribbon (velocity) Microphone
Ribbon type: 99% Pure aluminum, 2.0 micron
Polar pattern: Figure 8 Symmetrical design
Frequency Response: 25Hz to 9KHz
Sensitivity: -56 db +/- 2 dB (0 dB=1V/Pa)
Output Impedance: <=200 Ohms
Recommended load impedance: >1000 Ohms
Max.SPL (1% THD @1000 Hz): 135 dB
Connector: 3-Pin male XLR