4060 and cell phones, syntesized Senn 8030...

[Petrus]

Last friday a recorded an organ concert with Sennheiser 8020 and 8040 mics taped together (45 cm 110 degrees out) sent to Maselec/Orpheus combo, and a pair of DPA4060 at 150 cm AB configuration as backup (carbon fibre rod taped to the AB-bar) sent to SD722.

Only the DPA4060 had picked up a few cell phone radio interferences, manifested as rythmic pattern centered at 10 kHz. Not all that loud, but easy to hear.

I think this is due to the fact that the mics have really thin and unprotected cables about 1.5 meters long. When spread out like this they form a relativelly sensetive antenna! Something to watch out.

In other ways the DPA4060 sound fine, good low extension not far removed from 8020! With relatively high levels of blower hum the limited dynamic range poses no problems.

I compared the 8020 omnis and 8040 cardioids and in the end mixed them about 1:1 ratio adding 2 dB low bass boost to 8020 (low shelf filter starting from 50 Hz and hitting +2 dB at 20 Hz). This combination gave a more precise stereo image than 8020 alone without losing the bass. The mic distance and angle is about the one recommended by "stereophonic zoom" paper for hypocardioids. What I have in effect is the long awaited 8030!

[Audiop]

Interesting but not very surprising. I have found myself missing something with both MKH8020 and MKH8040 when used as a simple stereo set up so I can easily imagine the hypocard arrangement being successful.

I also like your logic.. MKH8030 should be a hypocard while the fig. 8 should be called the MKH8060.


/Peter

[d_fu]

Been there, done that...
Kudos to Mr. Straus... (DIY wide cardioid)

And here's how german radio stations do it...

[JEGG]

Originally Posted by Petrus

What I have in effect is the long awaited 8030!

This is a semantic point only, but the Sennheiser model numbering of the past would suggest than an 8030 would be a figure 8. But then the "classic MKH" (the current Sennheiser marketing reference term) series does not have a wide cardioid. I do understand the logic, though, of associating a wide cardioid with a "30" number.

But who cares what the model number is? I've enjoyed the thread and d_fu's past references (and the posted recording I've yet to download and hear) to the Strauss packet, a method I've been aware of for a very long time but have never tried myself.

Also comments by mpdonahue on the linked thread are interesting.