Re: Noisy/hissy EDP (revisited) LOOP IV

[Kelly Coyle <kellycoyle@charter.net>]

I just fixed a different noise problem on my (old) EDP when I  
discovered that the screw near the transformer was too long. Just a  
thought.


On Sep 29, 2005, at 10:41 AM, Louis Rossi wrote:

> I'm having the same problem as Joe. Can anyone confirm if LOOP IV  
> will help with the hiss or maybe the newer black units sound  
> better. PLEASE?
>
>
> Thanks
> Lou
>
>
>
>> From: "joe rut" <joerut@lycos.com>
>> Reply-To: Loopers-Delight@loopers-delight.com
>> To: Loopers-Delight@loopers-delight.com
>> Subject: Noisy/hissy EDP (revisited)
>> Date: Fri, 23 Sep 2005 21:39:49 -0500
>>
>> Hey there-
>>
>> I know this was a source of discussion on the list some time ago,  
>> but I've spent a couple hours searching/reading in the archive and  
>> I can't
>> find anything that seems to have resolved this problem.  I'm using  
>> the cream-colored Oberheim EDPs with Loop III, 5.0.
>>
>> The problem:
>> My loop is full of hiss.  I tap record once.  I tap it a second  
>> time to end the loop and there is a lot of hiss.
>> This occurs even with nothing plugged into the EDP inputs
>> This occurs even with input knob set to zero.
>> With feedback set to zero, the hiss does not die away, but stays  
>> steady.
>>
>> This does not seems like an "improper gain staging" issue.  One of  
>> my EDPs does this and the other does not.  With both EDPs set
>> identically, one is super hissy, one is only mildly (and  
>> acceptably) hissy.  (eg: A) With all knobs at 100% and no inputs  
>> into the EDPs, or B)
>> input= Zero, output = any audible setting, mix and feedback = 100%  
>> and no inputs into EDPs.)
>>
>> The only visible difference between the two EDPs is that the hissy  
>> unit has a power switch with just a white dot on it, while the other
>> actually says "on/off".  Could one of these be from a different  
>> manufacturing run in which there were different (noisier) parts  
>> used?  Is this
>> a problem that can be addressed by replacing certain parts?
>>
>> Anybody else had this experience and found a way to address it?
>>
>> Thanks
>>
>> Joe Rut
>>
>> --
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