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Earthworks Near-Perfect Polar Response

One of Earthwork’s proprietary technologies is near-perfect polar re-
sponse i.e. very uniform response over the front 160º of the micro-
phone. Conventional microphones (even expensive ones) have a loss 
of high frequencies at the sides of the microphone. Have you ever tried 
to put three singers on a single directional microphone? The singer at 
the front of the mic sounds great, but the two on the sides of the micro-
phone sound muffled due to the lack of high frequency pickup at the 
sides of the microphone. In contrast, the Earthworks proprietary po-
lar technology provides virtually the same frequency response on the 
sides of the microphone as at the front with no more than a 3dB loss 
at any specified frequency out to 80º off-axis). This extremely uniform 
frequency response at the front and sides of the microphone dramati-
cally reduces phasing issues when using Earthworks microphones. Refer 
to Figure 2 A & B to see how uniform the Earthworks microphone (A) 
polar response is, in comparison to the conventional microphone (B).

4

A

DM20 Polar

Conventional Polar

Earthworks SR30 Cardioid

500

1K

2K
4K

8K

15K

Competitive Cardioid

500

2K

15K

10K

1K

20K

5K

500

1K

2K
4K

8K

15

B

Within 3dB 

500Hz to 

16kHz

Within 12dB 

500Hz to 

15kHz & 

Within18dB

to 20kHz

Figure 2-A & 2-B  Earthworks vs. Conventional Polar Response

Nearly Twice the Amount of Rear Rejection

Another disadvantage of the multi-microphone approach is picking up 
the unwanted sound of other elements of the drum set from the rear of 
each microphone. Earthworks cardioid microphones have a very high 
rejection of sounds at the rear of the microphone. This greatly re-
duces the leakage of cymbals or other drum sounds at the rear 
of Earthworks microphones. Conventional microphones provide only 
about 18dB of rear rejection, while Earthworks microphones provide 
nearly twice the amount of rejection of conventional microphones. The 
Earthworks drum mics will nearly eliminate any leakage present at 
the rear of the microphone. Figure 3 shows conventional drum micro-
phones with 18dB of rear rejection and Figure 4 shows the Earthworks 
drum microphones with nearly double the amount of rear rejection. 

Содержание DrumMic DM20

Страница 1: ...User s Guide DM20 DrumMic Tom Snare Microphone...

Страница 2: ...3 Noise Weight 11 12 inches 282 44mm 55lb 25kg Frequency response Polar Pattern Cardioid Sensitivity 8mV Pa 42dBV Pa Power requirements 24 48V Phantom 10mA Peak acoustic input 150dB SPL 50Hz to 20kHz...

Страница 3: ...tput level In most cases the DM20 will not require the use of a pad to prevent overloading the in put of outboard microphone preamps or the mic preamp inputs on mix ers consoles or computer audio inte...

Страница 4: ...ie Vannucci Anton Fig Anthony King and many top FOH engineers touring with major artists are using Earthworks High Defi nition Drum Microphones for overheads toms snare and kick drum with exceptional...

Страница 5: ...g or live sound engineer has their own way of doing this Our objective is not to indicate which drum miking approach is better but to make sug gestions and look at the advantages and disadvantages of...

Страница 6: ...one A polar response is in comparison to the conventional microphone B 4 A DM20 Polar Conventional Polar Earthworks SR30 Cardioid 500 1K 2K 4K 8K 15K Competitive Cardioid 500 2K 15K 10K 1K 20K 5K 500...

Страница 7: ...r Rejection Using Conventional Drum Mics Competitive Microphones Approx 18dB Rear Rejection Figure 4 Nearly Twice the Amount of Rear Rejection Using Earthworks Drum Mics Earthworks Microphones Nearly...

Страница 8: ...the bottom XLR connec tor end to move the microphone up inside the rubber holder 3 4 The fit will be firm so you will need to apply a little pressure to move the microphone body up into the rubber ho...

Страница 9: ...further from the drum shell One of the three positions A B or C previously mentioned will allow the RimMount bracket to be mounted parallel to the drum shell Position the rim guide so the bottom edge...

Страница 10: ...microphone head be po sitioned between 1 5 inches and 3 inches above the drumhead The flex ible gooseneck will allow you to move the microphone head either up or down above the drumhead as well as in...

Страница 11: ...he microphone cable will provide 20dB of attenuation to help prevent any distortion or overload For more information please refer to the Different Types of Preamp Input Pads section on pages 1 and 2 o...

Страница 12: ...re 10 A that the microphone head is placed closer to the drum rim while in Figure 10 B the microphone head is aimed toward the center of the drumhead by changing the position of the gooseneck Experime...

Страница 13: ...estions or require any additional information feel free to contact Earthworks directly using the contact information on the back cover of this manual and don t forget to register your warranty informa...

Страница 14: ...12 NOTES...

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