Earthworks DP25 User Manual - Earthworks Drum Periscope

Earthworks Drum Periscope

™

 Microphones

The Earthworks DrumKit™ High Definition Three-Microphone Systems have 

had great success because they pick up drum sounds with far more detail and accu-

racy than conventional microphones. This improved sound quality is due to propri-

etary advanced technologies utilized in Earthworks High Definition Microphones. 

Many drummers such as Jeff Campitelli with Joe Satriani, Keith Carlock with 

Steely Dan, and FOH engineers such as Randy Lane with Dream Theater, were 

using Earthworks High Definition Microphones™ for overheads and kickdrum 

with exceptional results. They then wanted the same exceptional sound qual-

ity from their snare and tom mics. With the introduction of the DP25/C and 

DP30/C microphones, they were able to get the same pristine, detailed sound 

from their toms and snares as they were from their Earthworks High Definition 

drum overhead mics. 

We worked with major artists for nearly two years developing and field testing 

our new High Definition tom and snare mics. During the development phase, 

we miked a set of drums with nine Earthworks High Definition Microphones 

(including our new tom and snare mics) and also nine industry favored mics.  

When veteran engineers heard the difference between these two recordings, 

they made the comment that the improvement was so dramatic, it didn’t even 

sound like the same set of drums. They all agreed, “the increase in detail and 

sound quality was staggering.”

The DP25/C, designed specifically for snare drums, has a low frequency re-

sponse of 50Hz while the DP30/C, designed for toms has a low frequency 

response of 30Hz. Both microphones have a flexible mini-gooseneck and can 

handle up to 145 dB SPL. The Earthworks patented polar technology pro-

vides excellent rear rejection and a uniformity of frequency response out to 

90 degrees off-axis. This vastly reduces phase cancellation or other phasing 

issues, and minimizes cymbal leakage as well as acoustic feedback problems 

in “live sound” applications.

Earthworks High Definition Microphones

™

the New Science in Microphones

David Blackmer, the brilliant engineer who invented the unique technologies 

of dbx, is also the inventor and founder of Earthworks. In the last few years 

of his life, David developed a number of revolutionary technologies that 

dramatically improve the quality and performance of microphones. In short, 

Earthworks High Definition Microphones™ will pick up sounds and detail 

that other microphones cannot. These dramatic improvements are in the areas 

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