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The Akg C 480 B U.s.a.in Practice
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I have subsequently tried akg c 480 b americamicrophones, with the ck 62 omnidirectional tablet. for this, i had to buy them, however it was nonetheless feasible to return them in case of trouble.
The c 480 preamplifiers and pills are not to be had as a manufacturing unit matched set, however a few people advised me that such top microphones do no longer ought to be matched.
that stated, the shopkeeper advised me that he may want to manage to get gadgets featuring consecutive serial numbers, which is meant to assist getting microphones that fit better.
When the microphones arrived, the shopkeeper informed me that most effective the preamplifiers could have been serial-number-matched, as there's no obvious serial number at the containers that contains the tablets.
Once I opened the four containers, i remarked that
For one of the preamplifiers the serial wide variety became the identical at the container and on the tool, even as for the alternative one the numbers have been completely different; definitely the serial numbers of the preamplifiers had been totally distinctive
The capsules had a serial wide variety but you couldn't see it from the container; and in fact there has been a distinction of 2 among each numbers
Greater apparently, each drugs were offered with a paper that indicates the frequency curve and the sensitivity (measured by means of akg inside the manufacturing facility). to sum up things:
One of the capsule ("primary") had a sensitivity of 14mv/pa; the frequency curve changed into almost flat (0db) from 40hz to 5000hz, and there has been a hf improve among 5khz and 20khz, the maximum boost being +5db at eight.5khz
The alternative pill ("number two") had a sensitivity of 18mv/pa; the sensitivity curve turned into same to approximately -2db from 40hz to 250hz, flat (0db) between 250hz and 5khz, and the hf improve turned into come what may comparable because the one of the other pill
On the user guide, the sensitivity is 20mv/pa; the frequency curve is 0db-flat among 30hz and 5000hz and the more parabolic-looking hf raise is simplest +2db (at 10khz, now not 8.5).
I imagined that i ought to possibly now not listen any distinction but genuinely it become no longer the case whilst recording. as i had no longer been able to keep away from seeing the curves before recording, i sent the recordings to a few different human beings, best asking them if they may pay attention a difference between the 2 files (and that i failed to tell them some thing extra). maximum of them agreed that one of the music had much less low frequencies, or extra high frequencies / extra agressivity, which confirms that the supplied akg curves must be sincere.
Omnidirectional (pressure) microphones are known for high-quality bass replica (and no proximity effect). the usage of omnidirectional microphones for spaced recordings facilitates getting a incredible spatial rendering (at the same time as the localisation is pretty inaccurate) with in particular appropriate and "natural" sounding low frequencies compared to the recording techniques that use best directional microphones.
Consequently, as i intended to apply those microphones for both 2-track and 1-song recordings i determined to take those microphones again to the store.
One among them (categorised "number one" above) is clearly precise, and if the opposite one become the identical i might have kept both.
Visit here : http://www.belfieldmusic.com.au/akg-ck62-omnidirect-capsule-for-c480b-uls.html
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