Monday, May 22, 2017

On connecting many Beyer M55 microphones together


An M55 sounds great without the need of EQ or Pleiades filters.


They can be connected to a 3 pole female DIN connector so that no connector modification is needed and the mic stays original.


The fit is quiet tight so that the mics may be (with minimal risk) hung from the ceiling.


The mic length is 2 meters which should be fine for bringing each mic close to the musician.


A vague knot can be made around the mic so that the center of gravity shifts and the hung mic is facing the performer.


The microphone axis can be adjusted by changing the point of contact of the vague knot and the mic body shifting the center of gravity.


So no tripods or stands are needed, and diffraction obstacle effects are minimized.


The mics are virtual shock immune and this applies to their cable too which is now their support.


Slight swinging of the mics is beneficial as it creates a subtle Doppler effect that keeps the brain interested while caressing the basilar membrane by subtle swing of the frequency domain micro variation.


The M55 is balanced.


Each 3 pin female can be soldered to the thin balanced cable that is found inside snake multi cables.


Four of these cables can fit simultaneously inside a Neutrik male XLR.


So 4 microphones can be connected together and have 1 output making a 4 in 1 out without the need of an adding (mixing) console desk.


Inside the Neutrik male XLR the mics can be connected in series for example.


If two 500Ω and two 200Ω Beyer M55 are connected is series the resultant impedance is 1400Ω which seems very suitable to be connected to modern equipment.


Signal will be loud.


Without noise as these mics can be used even at 0in without any change in their pristine sound quality.


The louder instruments can use the 200Ω mics to aid the balancing of sound.


Another four M55 may be connected to a Male Neutrik XLR.


So effectively we now have 8 in to 2 out direct to stereo.


4 mics feed the left Channel and 4 the right channel.


By suitable positioning of mics, panning may be created.


The vocalist can sing in front of 2 mics for being located in the center of the sound image.


The performers will be in a relaxed atmosphere sitting on chairs or standing .


Fairly close together so that they can hear themselves well without the need of headphones.


Each XLR out can be connected to a Pleiades V series one electron tube battery operated pre preamplifier for extremely low noise. This step may not even be needed as the signal is expected loud
and could drive the input stage of a Sony TCD5 pro II tape recorder for example without hiss.


Example signal path:


4 M55 in series -

                           - Sony TCD5 PROII - Sennheiser HD580

4 M55 in series -


This may be possibly the simplest signal path on the planet for recording closed miked sources direct to stereo.


How would it sound like?




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