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Re: noisy 8020 mics

Subject: Re: noisy 8020 mics
From: "Munir kureshi"
Date: Sat Sep 24, 2011 8:14 pm ((PDT))
Hi Vicki,

Thank you for your input, it really helps. You like MKH8020, but you also m=
ention that they are good when they work. Have you had any problems with th=
em? I am recording some extremely endangered animals and if you are lucky, =
you get one chance to record them. You have to have 100% dependable equipme=
nts. I will checkout 4022 and see how they sound.

Regards,

Munir.

Sent from my iPad

On Sep 24, 2011, at 6:08 PM, vickipowys <> wrote:

> Munir,
>
> I have compared MKH20 mics with MKH8020 mics and I like the sound
> from the MKH8020s much better - when they work that is!  MKH20s are
> better for nature recording with the Free Field switch ON, but are
> still not as good a sound as the 8020s.
>
> Many on this forum use Audio Technica 4022s which sound very good but =

> I've not used them to make a direct comparison.  I've no experience
> with any other brands.
>
> Vicki
>
>
> On 25/09/2011, at 12:16 AM, Munir kureshi wrote:
>
>> Sounds like Sennheiser MK80_ _ series microphones have some serous
>> problems. I am glad people are posting their experience. My plan
>> was to get a pair of MK80_ _ for stereo recording. Can somebody
>> suggest other microphones in this category that is comparable to
>> MK80_ _. I have MK70/MK30 pair and it works fine except MK70 which
>> is fairly new has some popping sound issue. I also use Schoeps CMIT
>> 5 with CCM 8 and that works very well when they are away from
>> moisture.
>>
>> Regards,
>>
>> Munir.
>>
>> Sent from my iPad
>>
>> On Sep 23, 2011, at 3:30 PM, bruce seifried
>> <> wrote:
>>
>>> Oh, man. I know this issue well. Unfortunately.
>>>
>>> Rather than trust my sometimes quirky memory, I will copy/paste part
>>> of one of my emails to my dealer:
>>>
>>> *********
>>>
>>> "Here's a recap of my MKH8020/8040 adventure:
>>>
>>> =E2=80=A2 Original order was for one pair each of MKH8020 stereo set, a=
nd
>>> MKH8040 stereo set. Order date 5/8/08.
>>>
>>> =E2=80=A2 One of the 8020 omnis went bad on my first remote job. Interm=
ittent
>>> full output noise spikes ruined recording.
>>> This pair was replaced by Sennheiser on approximately 7/1/08.
>>>
>>> =E2=80=A2 New pair of 8020's both went bad before my first job with the=
m.
>>> Both
>>> initially had low-level crackly noise problems. One of them
>>> subsequently improved, but both were returned to Sennheiser for a
>>> refund.
>>>
>>> =E2=80=A2 The 8040 pair were initially fine, and worked in my studio. T=
hey
>>> were set up here prior to a remote job in October, and one developed
>>> the same low-level crackles that the second 8020 pair had. This noise
>>> took about a minute to get going before manifesting itself, and was
>>> then continuous. These were returned to Sennheiser for a refund.
>>>
>>> I returned the 8020/8040 pairs for a refund reluctantly, since I did
>>> very much like their sound, especially the 8020s, but I no longer
>>> trust that these microphones are reliable enough for me to use in a
>>> professional situation.
>>>
>>> As a circuit designer myself, I will hazard a guess as to what might
>>> be the cause of these problems.
>>>
>>> If it were not for the intermittent full-level noise problem with the
>>> first 8020 pair, I would guess that there was some form of
>>> contamination to the high impedance section of the pc boards
>>> happening
>>> during manufacture, perhaps due to incomplete removal of flux during
>>> soldering. Another possibility is a bad batch of FETs or transistors
>>> sneaking into production. Less likely but still possible would be bad
>>> capacitors. Obviously, I did not open these to determine for certain
>>> what the problem(s) was/were.
>>>
>>> However, I did notice that the small circular pc board located
>>> between
>>> the two halves of the microphones was not firmly attached in place,
>>> and was not always accurately centered. In fact, in one of the
>>> mics as
>>> initially received it was so far out of alignment that there were
>>> positions of rotation of the XLR assembly where the pin was
>>> barely, if
>>> at all, making contact with the circular pc board trace. This
>>> might be
>>> a design decision that should be rethought, at least to improve on
>>> the
>>> dimensional tolerances  involved."
>>>
>>> *********
>>>
>>> My dealer, Steve Remote at Aura Sonic, was a complete saint during
>>> this nightmare, and managed to get Sennheiser to completely refund
>>> the
>>> cost of these microphones. I have refrained from going public about
>>> all this, since I had not seen any other mention anywhere of anyone
>>> else having these sorts of problems, and I was beginning to doubt my
>>> own sanity. I tried these mics with different mic cables, two
>>> different Sound Devices 702 recorders, the KORG DSD recorder, and the
>>> outcome was always the same. Sennheiser denied that anyone else was
>>> having these problems. Apparently, I'm not insane, as is now
>>> apparent.
>>> Yay!
>>>
>>> I feel your pain!
>>>
>>>
>>> bruce seifried
>>> eclair engineering
>>>
>>>
>>> On Sep 22, 2011, at 4:21 AM, vickipowys wrote:
>>>
>>>> All,
>>>>
>>>> Does anyone else have problems with periodic loud fizzing noise from
>>>> Sennheiser 8020 mics?
>>>>
>>>> Sennheiser replaced one set of mics ('faulty capsule' they said) but
>>>> the noise persists in the replacement mics despite me checking
>>>> absolutely everything by way of leads and phantom power voltage and
>>>> connectors etc. etc.
>>>>
>>>> Help please!
>>>>
>>>> Vicki Powys
>>>> Australia
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> "While a picture is worth a thousand words, a
>>> sound is worth a thousand pictures." R. Murray Schafer via Bernie
>>> Krause.
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>
>>
>> ------------------------------------
>>
>> "While a picture is worth a thousand words, a
>> sound is worth a thousand pictures." R. Murray Schafer via Bernie
>> Krause.
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
>
> ------------------------------------
>
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
> Yahoo! Groups Links
>
>
>






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