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Utilizing Earthworks Near-perfect Polar Response

Near-perfect Polar Response

Conventional cardioid microphones typically have poor polar response. They 

will have a relatively uniform (i.e. flat) frequency response at the front of the 

microphone (on-axis or 0 degrees), meaning they will uniformly reproduce 

high frequencies, mid frequencies and low frequencies with a uniform level.  

However, if you move to either side of the microphone (90 or 270 degrees) 

there will be a dramatic loss in high frequency response. Perhaps the most 

telling demonstration of this is attempting to place three singers on a single 

conventional cardioid microphone (one at the front and the other two sing-

ers on the sides). The singers on the sides of the microphone will sound 

muddled and undefined due to the loss of high frequencies at the sides of 

the microphone (off-axis).  In figure 1a you will see a perfect cardioid polar 

pattern which will pick up all frequencies uniformly at the front and the sides 

of the microphone. Figure 1b shows the polar response of a typical conven

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tional cardioid microphone. Notice the severe loss of high frequencies at 

the sides of the microphone. Figure 1c is the near-perfect polar response 

of an Earthworks microphone. The Earthworks microphone has a uniform 

frequency response at the sides of the microphone that is within 3db of the 

on-axis response at any frequency. 

The Earthworks cardioid microphones will pick up sounds with nearly the same 

fidelity at the front and the sides of the microphone.  This is a remarkable 

technical achievement and one that will provide incredible results for you.

Figure 1.

 Differences Between a Perfect, Conventional and an Earthworks Cardioid Microphone

(1b) Conventional Cardioid Microphone

(1c) Earthworks Cardioid Microphone

 (1a) Textbook 

Perfect Cardioid 

Microphone                          

2

Congratulations on your purchase of the innovative Earthworks Flex-

Wand  High  Definition  Microphone  System™.  We  know  you  will  be 
thrilled with the results you achieve using the FlexWand™ System for 

both live performance and recording. 

Enclosed with your Earthworks FW730 FlexWand

 System:

FlexWand

 Models FW730 & FW730/HC with cast iron base, or

FW730TPB & FW730/HC-TPB with tripod base

 

1 – FlexWand

 stand/wand section *

 

1 – Microphone windscreen *

 

1 – Base for stand/wand section 

(either cast iron metal or tripod  

 

 

       base depending on model) *

 

1 – User’s Manual for FlexWand

 System

(If you purchased a matched pair of FlexWands, you will receive two each of the 

items indicated above with an asterisk.)

THE FLEXWAND™ SYSTEM

You have just purchased an Earthworks High Definition Microphone™ that 

is 

incorporated  in  the  FlexWand™System.  The  FlexWand™  System  is  a  to

tally 

new concept in microphones. It is a combination of a High Definition Micro

-

phone™  and  a  low  profile  microphone  stand  and  boom  as  a  single  unit.  It 

allows the microphone head to be positioned as high as 7 feet and as low as 

1.5 feet from the floor or anywhere in between. Best of all there are no visible 
wires or cables above floor level. Visually it is low profile, smooth, sleek and 
clean. The FlexWand™ is the ideal solution for applications where the utmost 
in sound quality and a low profile is required.  

The  FlexWand™  is  ideal  for  miking  a  variety  of  applications  such  as  large 
choir,  small  vocal  ensembles  and  vocal  solos.  Now  you  don’t  have  to  find 

a microphone, attach the mic clip to the stand and then dress the cable 

around the stand. Just pick up the FlexWand™, position it and plug the mic 
cable  into  the  base.  You  are  done!  Best  of  all  it  is  neat  and  clean  visually 

with no unsightly microphone cable wrapped around the stand and boom. 

1

FOR ASSEMBLY INFORMATION SEE PAGES 11-14

Summary of Contents for FlexWand FW730

Page 1: ...Milford NH 03055 603 654 2433 ext 114 www earthworksaudio com email sales earthworksaudio com Printed in U S A User s Manual FW730 FW730 HC FW730 TPB FW730 HC TPB High Definition Microphone System A M...

Page 2: ...3 Incorrect poor isolation from the orchestra Figure 4 Correct maximum isolation from the orchestra Near perfect polar response will allow placing the microphones closer to the choir as close as 3 fee...

Page 3: ...Cardioid Microphone 1c Earthworks Cardioid Microphone 1a Textbook Perfect Cardioid Microphone 2 Congratulations on your purchase of the innovative Earthworks Flex Wand High Definition Microphone Syste...

Page 4: ...age is the same 80 voice choir is covered using only 3 Earthworks cardioid microphones 4 3 Conventional Polar Response vs Near perfect Polar Response Before reading this information if you were asked...

Page 5: ...alance of choir voices to be achieved much easier Rejection of Sounds Behind the Microphone A textbook perfect cardioid microphone will pick up sounds uniformly at the front and sides of the microphon...

Page 6: ...cs of a cardioid microphone in that it will pick up at the front and the sides and picks up far less at the rear therefore making the microphone directional However this is textbook theory This is muc...

Page 7: ...crease in gain before feedback It is suggested that when mik ing choirs that you use a high pass filter low cut on your console and set it somewhere in the 120Hz range This will increase your gain bef...

Page 8: ...etscrew To assemble the FW730TPB first screw the metal sleeve C onto the threads on the bottom of the FlexWand until the metal sleeve is screwed on tight Then pick up the FlexWand by holding the stand...

Page 9: ...vocal groups you would probably want to have the FlexWand at its maxi mum height of 7 feet This is easily achieved by pointing the wand straight up and then loosen the clutch and slide the sleeve up...

Page 10: ...ween straight up to a 90 degree angle If you want to go more than 90 degrees you will need to re position the sleeve to uncover more or all of the large flex thereby allowing it to be positioned betwe...

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