Re: [Harp-L] Sennheiser e604

[John Thaden <jjthaden@xxxxxxxxx>]

Thanks, Alex, that helps!

Alexander Savelyev <Alexander.Savelyev@xxxxxxxx> wrote: once it's not clearly shown on the frequency response chart in the manual, then it's worth checking any other mic's manual to have an idea. 

As for this mic, the second - upper - curve illustrates the increase of the signal level at the lower frequency range due to the proximity effect - in this case within the 40 - 700 Hz range. 

For you to know, the original curve goes down as low as to -66 dBV at 40 Hz - distance of 1 meter - approx 3 ft, and the upper, dotted, curve - to some -51 dBV at 40Hz - distance of 5 cm - approx 5 inches. So, the difference is some 15 dB, which means that when you hold the mic in your hand and play the harp you'll get much fuller, fatter sound, especially valuable in blues. 

Hope it helps, 

Alex

>>> "Tim Moyer"  12.06.2008 19:19:18 >>>
I don't know, John, I don't have a better resolution version of the 
graph to be able to read the labels.  Sounds like your assumption 
about proximity is probably a good one, in which case the graph 
legend would be mic distances, but I don't know what they are.  
 
-tim

> John Thaden wrote:
> 
> Tim, looking at the spec sheet pdf, I see the frequency response 
> has two lines diverging in the bass region.  The document is too 
> low resolution for me to see what differs about them.  I'm 
> guessing it is distance from the mic (proximity effect).  If so, 
> can you tell me what the distances are for the two lines?  If not, 
> then what the two lines mean?
> Thanks,
> John
> 
> Tim Moyer wrote:
> > I use a Sennheiser e604 microphone exclusively for diatonic 
> > harmonica....[T]he frequency response is pretty flat across a 
> > spectrum which far exceeds most "traditional" harmonica mics.